Merge branch 'master' into TP-20240104-readme_requirements

Co-authored-by: Michael Hoennig <michael@hoennig.de>
Reviewed-on: #7
Reviewed-by: Timotheus Pokorra <timotheus.pokorra@hostsharing.net>

.aliases

@@ -44,7 +44,7 @@ alias podman-stop='systemctl --user disable --now podman.socket && systemctl --u
 alias podman-use='export DOCKER_HOST="unix:///run/user/$UID/podman/podman.sock"; export TESTCONTAINERS_RYUK_DISABLED=true'
 
 alias gw=gradleWrapper
-alias pg-sql-run='docker run --name hsadmin-ng-postgres -e POSTGRES_PASSWORD=password -p 5432:5432 -d postgres:13.7-bullseye'
+alias pg-sql-run='docker run --name hsadmin-ng-postgres -e POSTGRES_PASSWORD=password -p 5432:5432 -d postgres:15.5-bookworm'
 alias pg-sql-stop='docker stop hsadmin-ng-postgres'
 alias pg-sql-start='docker container start hsadmin-ng-postgres'
 alias pg-sql-remove='docker rm hsadmin-ng-postgres'

README.md

@@ -20,6 +20,7 @@ For architecture consider the files in the `doc` and `adr` folder.
   - [Directory and Package Structure](#directory-and-package-structure)
     - [General Directory Structure](#general-directory-structure)
     - [Source Code Package Structure](#source-code-package-structure)
+  - [Run Tests from Command Line](#run-tests-from-command-line)
   - [Spotless Code Formatting](#spotless-code-formatting)
   - [JaCoCo Test Code Coverage Check](#jacoco-test-code-coverage-check)
   - [PiTest Mutation Testing](#pitest-mutation-testing)
@@ -39,6 +40,7 @@ For architecture consider the files in the `doc` and `adr` folder.
   - [How to Use a Persistent Database for Integration Tests?](#how-to-use-a-persistent-database-for-integration-tests?)
   - [How to Amend Liquibase SQL Changesets?](#how-to-amend-liquibase-sql-changesets?)
   - [How to Re-Generate Spring-Controller-Interfaces from OpenAPI specs?](#how-to-re-generate-spring-controller-interfaces-from-openapi-specs?)
+  - [How to Generate Database Table Diagrams?](#how-to-generate-database-table-diagrams?)
 - [Further Documentation](#further-documentation)
 <!-- generated TOC end. -->
 
@@ -50,6 +52,8 @@ Everything is tested on _Ubuntu Linux 22.04_ and _MacOS Monterey (12.4)_.
 To be able to build and run the Java Spring Boot application, you need the following tools:
 
 - Docker 20.x (on MacOS you also need *Docker Desktop* or similar) or Podman
+- PostgreSQL Server 15.5-bookworm 
+  (see instructions below to install and run in Docker)
 - Java JDK at least recent enough to run Gradle
   (JDK 17.x will be automatically installed by Gradle toolchain support)
 
@@ -131,14 +135,14 @@ But the easiest way to run PostgreSQL is via Docker.
 
 Initially, pull an image compatible to current PostgreSQL version of Hostsharing:
 
-    docker pull postgres:13.7-bullseye 
+    docker pull postgres:15.5-bookworm 
 
 <big>**&#9888;**</big>
 If we switch the version, please also amend the documentation as well as the aliases file. Thanks! 
 
 Create and run a container with the given PostgreSQL version:
 
-    docker run --name hsadmin-ng-postgres -e POSTGRES_PASSWORD=password -p 5432:5432 -d postgres:13.7-bullseye
+    docker run --name hsadmin-ng-postgres -e POSTGRES_PASSWORD=password -p 5432:5432 -d postgres:15.5-bookworm
 
     # or via alias: 
     pg-sql-run
@@ -197,7 +201,7 @@ To generate the TOC (Table of Contents), a little bash script from a
 Given this is in PATH as `md-toc`, use:
 
 ```shell
-md-toc <README.md 2 4 | sed -e 's/^    //g'
+md-toc <README.md 2 4 | cut -c5-'
 ```
 
 To render the Markdown files, especially to watch embedded PlantUML diagrams, you can use one of the following methods:
@@ -231,12 +235,19 @@ sudo apt install graphviz
 
 ##### Ubuntu Linux command line
 
-```sh
-sudo apt-get install pandoc texlive-latex-base texlive-fonts-recommended texlive-extra-utils texlive-latex-extra pandoc-plantuml-filter
+1. Install Pandoc with some extra libraries:
+```shell
+sudo apt-get install pandoc texlive-latex-base texlive-fonts-recommended texlive-extra-utils texlive-latex-extra pandoc-plantuml-filter 
 ```
 
-```sh
-pandoc --filter pandoc-plantuml rbac.md -o rbac.pdf
+2. Install mermaid-filter, e.g. this way:
+```shell
+npm install -g mermaid-filter
+```
+
+3. Run Pandoc to generate a PDF from a Markdown file with PlantUML and Mermaid diagrams:
+```shell
+pandoc --filter mermaid-filter --filter pandoc-plantuml rbac.md -o rbac.pdf
 ```
 
 ##### for other IDEs / operating systems
@@ -245,7 +256,7 @@ If you have figured out how it works, please add instructions above this section
 
 #### Render Markdown Embedded Mermaid Diagrams
 
-The source of RBAC role diagrams are much easier to read with Mermaid than with PlantUML or GraphViz, that's the main reason Mermaid ist used too.
+The source of RBAC role diagrams are much easier to read with Mermaid than with PlantUML or GraphViz, that's also the main reason Mermaid is used.
 
 Can you see the following diagram right in your IDE?
 I mean a real graphic diagram, not just some markup code.
@@ -269,8 +280,11 @@ If not, you need to install some tooling.
 
 ##### for IntelliJ IDEA (or derived products)
 
-You just need the bundled Markdown plugin enabled and install and activate the Mermaid plugin in its [settings](jetbrains://idea/settings?name=Languages+%26+Frameworks--Markdown).
+1. Activate the bundled Jebrains Markdown PlantUML Extension via
+    [File | Settings | Languages & Frameworks | Markdown](jetbrains://idea/settings?name=Languages+%26+Frameworks--Markdown)  
+2. Install the Jetbrains Mermaid plugin: https://plugins.jetbrains.com/plugin/20146-mermaid, it also works embedded in Markdown files.
 
+Now the above diagram should be rendered.
 
 ##### for other IDEs / command-line / operating systems
 
@@ -280,13 +294,23 @@ If you have figured out how it works, please add instructions above this section
 
 #### IntelliJ IDEA
 
+##### Build Settings
+
 Go to [Gradle Settings}(jetbrains://idea/settings?name=Build%2C+Execution%2C+Deployment--Build+Tools--Gradle) and select "Build and run using" and "Run tests using" both to "gradle".
 Otherwise, settings from `build.gradle`, like compiler arguments, are not applied when compiling through *IntelliJ IDEA*.
 
+##### Annotation Processor
+
 Go to [Annotations Processors](jetbrains://idea/settings?name=Build%2C+Execution%2C+Deployment--Compiler--Annotation+Processors) and activate annotation processing.
 Otherwise, *IntelliJ IDEA* can't see *Lombok* generated classes 
 and will show false errors (missing identifiers).
 
+
+##### Suggested Plugins
+
+- [Jetbrains Mermaid Integration](https://plugins.jetbrains.com/plugin/20146-mermaid)
+- [Vojtěch Krása PlantUML Integration](https://plugins.jetbrains.com/plugin/7017-plantuml-integration)
+
 ### Other Tools
 
 **jq**: a JSON formatter. 

build.gradle

@@ -1,15 +1,15 @@
 plugins {
     id 'java'
-    id 'org.springframework.boot' version '3.0.0'
-    id 'io.spring.dependency-management' version '1.1.0'
-    id 'io.openapiprocessor.openapi-processor' version '2022.2'
-    id 'com.github.jk1.dependency-license-report' version '2.1'
-    id "org.owasp.dependencycheck" version "7.3.0"
-    id "com.diffplug.spotless" version "6.11.0"
+    id 'org.springframework.boot' version '3.1.7'
+    id 'io.spring.dependency-management' version '1.1.4'
+    id 'io.openapiprocessor.openapi-processor' version '2023.2'
+    id 'com.github.jk1.dependency-license-report' version '2.5'
+    id "org.owasp.dependencycheck" version "9.0.7"
+    id "com.diffplug.spotless" version "6.23.3"
     id 'jacoco'
-    id 'info.solidsoft.pitest' version '1.9.0'
+    id 'info.solidsoft.pitest' version '1.15.0'
     id 'se.patrikerdes.use-latest-versions' version '0.2.18'
-    id 'com.github.ben-manes.versions' version '0.43.0'
+    id 'com.github.ben-manes.versions' version '0.50.0'
 }
 
 group = 'net.hostsharing'
@@ -17,7 +17,7 @@ version = '0.0.1-SNAPSHOT'
 
 wrapper {
     distributionType = Wrapper.DistributionType.BIN
-    gradleVersion = '7.5'
+    gradleVersion = '8.5'
 }
 
 configurations {
@@ -42,7 +42,9 @@ repositories {
 
 java {
     toolchain {
-        languageVersion = JavaLanguageVersion.of(17)
+        languageVersion = JavaLanguageVersion.of(21)
+        vendor = JvmVendorSpec.ADOPTIUM
+        implementation = JvmImplementation.VENDOR_SPECIFIC
     }
 }
 
@@ -50,31 +52,41 @@ ext {
     set('testcontainersVersion', "1.17.3")
 }
 
-// wrapper
-
 dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
     implementation 'org.springframework.boot:spring-boot-starter-data-rest'
     implementation 'org.springframework.boot:spring-boot-starter-jdbc'
     implementation 'org.springframework.boot:spring-boot-starter-web'
     implementation 'org.springframework.boot:spring-boot-starter-validation'
-    implementation 'com.github.gavlyukovskiy:datasource-proxy-spring-boot-starter:1.8.1'
-    implementation 'org.springdoc:springdoc-openapi:2.0.0-M7'
-    implementation 'org.liquibase:liquibase-core'
-    implementation 'com.vladmihalcea:hibernate-types-60:2.20.0'
-    implementation 'com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.13.4'
-    implementation 'org.openapitools:jackson-databind-nullable:0.2.4'
-    implementation 'org.apache.commons:commons-text:1.10.0'
-    implementation 'org.modelmapper:modelmapper:3.1.0'
-    implementation 'org.iban4j:iban4j:3.2.3-RELEASE'
-    implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.2.0'
+    implementation 'com.github.gavlyukovskiy:datasource-proxy-spring-boot-starter:1.9.1'
+    implementation 'org.springdoc:springdoc-openapi:2.3.0'
+    implementation 'org.postgresql:postgresql:42.7.1'
+    implementation 'org.liquibase:liquibase-core:4.25.1'
+    implementation 'com.vladmihalcea:hibernate-types-60:2.21.1'
+    implementation 'io.hypersistence:hypersistence-utils-hibernate-62:3.7.0'
+    implementation 'com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.16.1'
+    implementation 'org.openapitools:jackson-databind-nullable:0.2.6'
+    implementation 'org.apache.commons:commons-text:1.11.0'
+    implementation 'org.modelmapper:modelmapper:3.2.0'
+    implementation 'org.iban4j:iban4j:3.2.7-RELEASE'
+    implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.3.0'
+
+    // fixes vulnerability CVE-2022-1471
+    // The dependency usually comes from Spring Boot, just in the wrong version.
+    // TODO: Remove this explicit dependency once we are on SpringBoot 3.2.x
+    // as well as the related exclude in settings.gradle
+    // and the dependency suppression in owasp-dependency-check-suppression.xml.
+    implementation('org.yaml:snakeyaml') {
+        version {
+            strictly('2.2')
+        }
+    }
 
     compileOnly 'org.projectlombok:lombok'
     testCompileOnly 'org.projectlombok:lombok'
 
     developmentOnly 'org.springframework.boot:spring-boot-devtools'
 
-    runtimeOnly 'org.postgresql:postgresql'
 
     annotationProcessor 'org.projectlombok:lombok'
     testAnnotationProcessor 'org.projectlombok:lombok'
@@ -82,11 +94,12 @@ dependencies {
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
     testImplementation 'org.testcontainers:testcontainers'
     testImplementation 'org.testcontainers:junit-jupiter'
+    testImplementation 'org.junit.jupiter:junit-jupiter'
     testImplementation 'org.testcontainers:postgresql'
-    testImplementation 'com.tngtech.archunit:archunit-junit5:1.0.0'
+    testImplementation 'com.tngtech.archunit:archunit-junit5:1.2.1'
     testImplementation 'io.rest-assured:spring-mock-mvc'
     testImplementation 'org.hamcrest:hamcrest-core:2.2'
-    testImplementation 'org.pitest:pitest-junit5-plugin:1.1.0'
+    testImplementation 'org.pitest:pitest-junit5-plugin:1.2.1'
 }
 
 dependencyManagement {
@@ -171,7 +184,7 @@ openApiGenerate.dependsOn processSpring
 // Spotless Code Formatting
 spotless {
     java {
-        // removeUnusedImports() TODO: reactivate once it can deal with multi-line-strings
+        removeUnusedImports()
         indentWithSpaces(4)
         endWithNewline()
         toggleOffOn()
@@ -183,14 +196,24 @@ spotless {
     }
 }
 project.tasks.check.dependsOn(spotlessCheck)
+// HACK: no idea why spotless uses the output of these tasks, but we get warnings without those
+project.tasks.spotlessJava.dependsOn(
+        tasks.generateLicenseReport,
+        tasks.pitest,
+        tasks.jacocoTestReport,
+        tasks.processResources,
+        tasks.processTestResources)
 
 // OWASP Dependency Security Test
 dependencyCheck {
-    cveValidForHours=4
+    nvd {
+        apiKey = project.property('OWASP_API_KEY') // set it in ~/.gradle/gradle.properties
+        delay = 16000
+    }
     format = 'ALL'
     suppressionFile = 'etc/owasp-dependency-check-suppression.xml'
     failOnError = true
-    failBuildOnCVSS = 7
+    failBuildOnCVSS = 5
 }
 project.tasks.check.dependsOn(dependencyCheckAnalyze)
 project.tasks.dependencyCheckAnalyze.doFirst { // Why not doLast? See README.md!
@@ -207,7 +230,7 @@ project.tasks.check.dependsOn(checkLicense)
 
 // JaCoCo Test Code Coverage
 jacoco {
-    toolVersion = "0.8.8"
+    toolVersion = "0.8.10"
 }
 test {
     finalizedBy jacocoTestReport // generate report after tests
@@ -286,7 +309,7 @@ pitest {
     targetTests = ['net.hostsharing.hsadminng.**.*UnitTest', 'net.hostsharing.hsadminng.**.*RestTest']
     excludedTestClasses = ['**AcceptanceTest*', '**IntegrationTest*']
 
-    pitestVersion = '1.9.9'
+    pitestVersion = '1.15.3'
     junit5PluginVersion = '1.1.0'
 
     threads = 4

etc/allowed-licenses.json

@@ -8,6 +8,7 @@
 
         { "moduleLicense": "BSD License" },
         { "moduleLicense": "BSD-2-Clause" },
+        { "moduleLicense": "BSD-3-Clause" },
         { "moduleLicense": "The BSD License" },
 
         { "moduleLicense": "CDDL 1.1" },

etc/owasp-dependency-check-suppression.xml

@@ -14,4 +14,52 @@
         <packageUrl regex="true">^pkg:maven/com\.fasterxml\.jackson\.core/jackson\-databind@.*$</packageUrl>
         <cve>CVE-2022-42003</cve>
     </suppress>
+    <suppress>
+        <notes><![CDATA[
+            We don't parse external XML.
+        ]]></notes>
+        <packageUrl regex="true">^pkg:maven/org\.eclipse\.angus/angus\-activation@.*$</packageUrl>
+        <cpe>cpe:/a:eclipse:eclipse_ide</cpe>
+    </suppress>
+    <suppress>
+        <notes><![CDATA[
+               We don't parse external XML.
+        ]]></notes>
+        <packageUrl regex="true">^pkg:maven/jakarta\.activation/jakarta\.activation\-api@.*$</packageUrl>
+        <cpe>cpe:/a:eclipse:eclipse_ide</cpe>
+    </suppress>
+    <suppress>
+        <notes><![CDATA[
+           Cyclic references are not possible if file comes in JSON text format.
+       ]]></notes>
+        <packageUrl regex="true">^pkg:maven/com\.fasterxml\.jackson\.core/jackson\-databind@.*$</packageUrl>
+        <cpe>cpe:/a:fasterxml:jackson-databind</cpe>
+    </suppress>
+    <suppress>
+        <notes><![CDATA[
+           As far as I see Criteria.parse(...) cannot be reached with external data.
+       ]]></notes>
+        <packageUrl regex="true">^pkg:maven/com\.jayway\.jsonpath/json\-path@.*$</packageUrl>
+        <vulnerabilityName>CVE-2023-51074</vulnerabilityName>
+    </suppress>
+    <suppress>
+        <notes><![CDATA[
+           Internal tooling, not exposed to the Internet.
+       ]]></notes>
+        <packageUrl regex="true">^pkg:maven/org\.pitest/pitest\-command\-line@.*$</packageUrl>
+        <cpe>cpe:/a:line:line</cpe>
+    </suppress>
+    <suppress>
+        <notes><![CDATA[
+            Spring Boot 3.1.x has a transient dependency to snakeyaml 1.3
+            which contains this vulnerability.
+
+            We've explicitly bumped to 2.2, but the vulnerability checker does not seem to notice that.
+
+            TODO: Remove this suppression once we are on SpringBoot 3.2,
+            as well as the explicit version bump and the transient dependency exclude.
+       ]]></notes>
+        <packageUrl regex="true">^pkg:maven/org\.yaml/snakeyaml@.*$</packageUrl>
+        <cve>CVE-2022-1471</cve>
+    </suppress>
 </suppressions>

gradle.properties

@@ -1,3 +1,8 @@
+# Gradle Java Toolchain-support
+org.gradle.java.installations.auto-detect=true
+org.gradle.java.installations.auto-download=true
+# org.gradle.jvm.toolchain.install.adoptopenjdk.baseUri
+# org.gradle.java.installations.paths -- uncomment and set if needed
 
 # Spring BOM overrides
 # currently none necessary

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.5-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -55,7 +55,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -80,13 +80,11 @@ do
     esac
 done
 
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
+# This is normally unused
+# shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -133,22 +131,29 @@ location of your Java installation."
     fi
 else
     JAVACMD=java
-    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 
 Please set the JAVA_HOME variable in your environment to match the
 location of your Java installation."
+    fi
 fi
 
 # Increase the maximum file descriptors if we can.
 if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
     case $MAX_FD in  #(
       '' | soft) :;; #(
       *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -193,11 +198,15 @@ if "$cygwin" || "$msys" ; then
     done
 fi
 
-# Collect all arguments for the java command;
-#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
-#     shell script including quotes and variable substitutions, so put them in
-#     double quotes to make sure that they get re-expanded; and
-#   * put everything else in single quotes, so that it's not re-expanded.
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
 
 set -- \
         "-Dorg.gradle.appname=$APP_BASE_NAME" \
@@ -205,6 +214,12 @@ set -- \
         org.gradle.wrapper.GradleWrapperMain \
         "$@"
 
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
 # Use "xargs" to parse quoted args.
 #
 # With -n1 it outputs one arg per line, with the quotes and backslashes removed.

gradlew.bat

@@ -14,7 +14,7 @@
 @rem limitations under the License.
 @rem
 
-@if "%DEBUG%" == "" @echo off
+@if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
 @rem
 @rem  Gradle startup script for Windows
@@ -25,7 +25,8 @@
 if "%OS%"=="Windows_NT" setlocal
 
 set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
@@ -40,7 +41,7 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
+if %ERRORLEVEL% equ 0 goto execute
 
 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -75,13 +76,15 @@ set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
 :end
 @rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
+if %ERRORLEVEL% equ 0 goto mainEnd
 
 :fail
 rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
 rem the _cmd.exe /c_ return code!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
 
 :mainEnd
 if "%OS%"=="Windows_NT" endlocal

settings.gradle

@@ -7,4 +7,32 @@ pluginManagement {
     }
 }
 
+plugins {
+    id 'org.gradle.toolchains.foojay-resolver-convention' version '0.7.0'
+}
+
+dependencyResolutionManagement {
+    components {
+        all {
+            allVariants {
+                withDependencies {
+                    removeAll {
+                        // Spring Boot 3.1.x has a transient dependency to snakeyaml 1.3
+                        // which contains a severe vulnerability.
+                        // Here we remove this transient dependency and in build.gradle
+                        // we add an explicit dependency to snakeyaml 2.2,
+                        // which does not have this vulnerability anymore.
+                        //
+                        // TODO: Check Once we are on SpringBoot 3.2.x, check if this exclude
+                        // is still neccessary. If not:
+                        // Remove it // as well as the related explicit dependency in build.gradle
+                        // and the dependency suppression in owasp-dependency-check-suppression.xml.
+                        it.module in [ 'snakeyaml' ]
+                    }
+                }
+            }
+        }
+    }
+}
+
 rootProject.name = 'hsadmin-ng'

src/main/java/net/hostsharing/hsadminng/config/PostgresCustomDialect.java

@@ -8,7 +8,7 @@ import static org.hibernate.dialect.DatabaseVersion.make;
 public class PostgresCustomDialect extends PostgreSQLDialect {
 
     public PostgresCustomDialect() {
-        super(make(13, 7));
+        super(make(15, 5));
     }
 
 }

src/main/java/net/hostsharing/hsadminng/context/Context.java

@@ -15,9 +15,11 @@ import java.util.Collections;
 import java.util.Optional;
 import java.util.Set;
 import java.util.UUID;
+import java.util.function.Function;
 import java.util.stream.Collectors;
 
 import static java.util.function.Predicate.not;
+import static net.hostsharing.hsadminng.mapper.PostgresArray.fromPostgresArray;
 import static org.springframework.transaction.annotation.Propagation.MANDATORY;
 
 @Service
@@ -81,11 +83,14 @@ public class Context {
     }
 
     public String[] getAssumedRoles() {
-        return (String[]) em.createNativeQuery("select assumedRoles() as roles", String[].class).getSingleResult();
+        final byte[] result = (byte[]) em.createNativeQuery("select assumedRoles() as roles", String[].class).getSingleResult();
+        return fromPostgresArray(result, String.class, Function.identity());
     }
 
     public UUID[] currentSubjectsUuids() {
-        return (UUID[]) em.createNativeQuery("select currentSubjectsUuids() as uuids", UUID[].class).getSingleResult();
+        final byte[] result = (byte[]) em.createNativeQuery("select currentSubjectsUuids() as uuids", UUID[].class)
+                .getSingleResult();
+        return fromPostgresArray(result, UUID.class, UUID::fromString);
     }
 
     public static String getCallerMethodNameFromStackFrame(final int skipFrames) {

src/main/java/net/hostsharing/hsadminng/hs/office/contact/HsOfficeContactRepository.java

@@ -14,7 +14,7 @@ public interface HsOfficeContactRepository extends Repository<HsOfficeContactEnt
     @Query("""
             SELECT c FROM HsOfficeContactEntity c
                 WHERE :label is null
-                    OR c.label like concat(:label, '%')
+                    OR c.label like concat(cast(:label as text), '%')
                """)
     List<HsOfficeContactEntity> findContactByOptionalLabelLike(String label);
 

src/main/java/net/hostsharing/hsadminng/hs/office/coopassets/HsOfficeCoopAssetsTransactionEntity.java

@@ -1,13 +1,11 @@
 package net.hostsharing.hsadminng.hs.office.coopassets;
 
-import com.vladmihalcea.hibernate.type.basic.PostgreSQLEnumType;
 import lombok.*;
 import net.hostsharing.hsadminng.errors.DisplayName;
 import net.hostsharing.hsadminng.hs.office.membership.HsOfficeMembershipEntity;
 import net.hostsharing.hsadminng.stringify.Stringify;
 import net.hostsharing.hsadminng.stringify.Stringifyable;
 import org.hibernate.annotations.GenericGenerator;
-import org.hibernate.annotations.Type;
 
 import jakarta.persistence.*;
 import java.math.BigDecimal;
@@ -47,7 +45,6 @@ public class HsOfficeCoopAssetsTransactionEntity implements Stringifyable {
 
     @Column(name = "transactiontype")
     @Enumerated(EnumType.STRING)
-    @Type(PostgreSQLEnumType.class)
     private HsOfficeCoopAssetsTransactionType transactionType;
 
     @Column(name = "valuedate")

src/main/java/net/hostsharing/hsadminng/hs/office/coopassets/HsOfficeCoopAssetsTransactionRepository.java

@@ -1,6 +1,5 @@
 package net.hostsharing.hsadminng.hs.office.coopassets;
 
-import net.hostsharing.hsadminng.hs.office.coopshares.HsOfficeCoopSharesTransactionEntity;
 import org.springframework.data.jpa.repository.Query;
 import org.springframework.data.repository.Repository;
 

src/main/java/net/hostsharing/hsadminng/hs/office/coopshares/HsOfficeCoopSharesTransactionEntity.java

@@ -1,12 +1,10 @@
 package net.hostsharing.hsadminng.hs.office.coopshares;
 
-import com.vladmihalcea.hibernate.type.basic.PostgreSQLEnumType;
 import lombok.*;
 import net.hostsharing.hsadminng.errors.DisplayName;
 import net.hostsharing.hsadminng.hs.office.membership.HsOfficeMembershipEntity;
 import net.hostsharing.hsadminng.stringify.Stringify;
 import net.hostsharing.hsadminng.stringify.Stringifyable;
-import org.hibernate.annotations.Type;
 
 import jakarta.persistence.*;
 import java.time.LocalDate;
@@ -43,7 +41,6 @@ public class HsOfficeCoopSharesTransactionEntity implements Stringifyable {
 
     @Column(name = "transactiontype")
     @Enumerated(EnumType.STRING)
-    @Type(PostgreSQLEnumType.class)
     private HsOfficeCoopSharesTransactionType transactionType;
 
     @Column(name = "valuedate")

src/main/java/net/hostsharing/hsadminng/hs/office/debitor/HsOfficeDebitorRepository.java

@@ -19,15 +19,15 @@ public interface HsOfficeDebitorRepository extends Repository<HsOfficeDebitorEnt
 
     @Query("""
             SELECT debitor FROM HsOfficeDebitorEntity debitor
-                JOIN HsOfficePartnerEntity partner ON partner.uuid = debitor.partner
-                JOIN HsOfficePersonEntity person ON person.uuid = partner.person
-                JOIN HsOfficeContactEntity contact ON contact.uuid = debitor.billingContact
+                JOIN HsOfficePartnerEntity partner ON partner.uuid = debitor.partner.uuid
+                JOIN HsOfficePersonEntity person ON person.uuid = partner.person.uuid
+                JOIN HsOfficeContactEntity contact ON contact.uuid = debitor.billingContact.uuid
                 WHERE :name is null
-                    OR partner.details.birthName like concat(:name, '%')
-                    OR person.tradeName like concat(:name, '%')
-                    OR person.familyName like concat(:name, '%')
-                    OR person.givenName like concat(:name, '%')
-                    OR contact.label like concat(:name, '%')
+                    OR partner.details.birthName like concat(cast(:name as text), '%')
+                    OR person.tradeName like concat(cast(:name as text), '%')
+                    OR person.familyName like concat(cast(:name as text), '%')
+                    OR person.givenName like concat(cast(:name as text), '%')
+                    OR contact.label like concat(cast(:name as text), '%')
                """)
     List<HsOfficeDebitorEntity> findDebitorByOptionalNameLike(String name);
 

src/main/java/net/hostsharing/hsadminng/hs/office/membership/HsOfficeMembershipEntity.java

@@ -1,6 +1,5 @@
 package net.hostsharing.hsadminng.hs.office.membership;
 
-import com.vladmihalcea.hibernate.type.basic.PostgreSQLEnumType;
 import com.vladmihalcea.hibernate.type.range.PostgreSQLRangeType;
 import com.vladmihalcea.hibernate.type.range.Range;
 import lombok.*;
@@ -61,7 +60,6 @@ public class HsOfficeMembershipEntity implements Stringifyable {
 
     @Column(name = "reasonfortermination")
     @Enumerated(EnumType.STRING)
-    @Type(PostgreSQLEnumType.class)
     private HsOfficeReasonForTermination reasonForTermination;
 
     public void setValidFrom(final LocalDate validFrom) {

src/main/java/net/hostsharing/hsadminng/hs/office/partner/HsOfficePartnerRepository.java

@@ -13,14 +13,14 @@ public interface HsOfficePartnerRepository extends Repository<HsOfficePartnerEnt
 
     @Query("""
             SELECT partner FROM HsOfficePartnerEntity partner
-                JOIN HsOfficeContactEntity contact ON contact.uuid = partner.contact
-                JOIN HsOfficePersonEntity person ON person.uuid = partner.person
+                JOIN HsOfficeContactEntity contact ON contact.uuid = partner.contact.uuid
+                JOIN HsOfficePersonEntity person ON person.uuid = partner.person.uuid
                 WHERE :name is null
-                    OR partner.details.birthName like concat(:name, '%')
-                    OR contact.label like concat(:name, '%')
-                    OR person.tradeName like concat(:name, '%')
-                    OR person.givenName like concat(:name, '%')
-                    OR person.familyName like concat(:name, '%')
+                    OR partner.details.birthName like concat(cast(:name as text), '%')
+                    OR contact.label like concat(cast(:name as text), '%')
+                    OR person.tradeName like concat(cast(:name as text), '%')
+                    OR person.givenName like concat(cast(:name as text), '%')
+                    OR person.familyName like concat(cast(:name as text), '%')
                """)
     List<HsOfficePartnerEntity> findPartnerByOptionalNameLike(String name);
 

src/main/java/net/hostsharing/hsadminng/hs/office/person/HsOfficePersonEntity.java

@@ -1,13 +1,11 @@
 package net.hostsharing.hsadminng.hs.office.person;
 
-import com.vladmihalcea.hibernate.type.basic.PostgreSQLEnumType;
 import lombok.*;
 import lombok.experimental.FieldNameConstants;
 import net.hostsharing.hsadminng.errors.DisplayName;
 import net.hostsharing.hsadminng.stringify.Stringify;
 import net.hostsharing.hsadminng.stringify.Stringifyable;
 import org.apache.commons.lang3.StringUtils;
-import org.hibernate.annotations.Type;
 
 import jakarta.persistence.*;
 import java.util.UUID;
@@ -37,7 +35,6 @@ public class HsOfficePersonEntity implements Stringifyable {
 
     @Column(name = "persontype")
     @Enumerated(EnumType.STRING)
-    @Type(PostgreSQLEnumType.class)
     private HsOfficePersonType personType;
 
     @Column(name = "tradename")

src/main/java/net/hostsharing/hsadminng/hs/office/person/HsOfficePersonRepository.java

@@ -14,9 +14,9 @@ public interface HsOfficePersonRepository extends Repository<HsOfficePersonEntit
     @Query("""
             SELECT p FROM HsOfficePersonEntity p
                 WHERE :name is null
-                    OR p.tradeName like concat(:name, '%')
-                    OR p.givenName like concat(:name, '%')
-                    OR p.familyName like concat(:name, '%')
+                    OR p.tradeName like concat(cast(:name as text), '%')
+                    OR p.givenName like concat(cast(:name as text), '%')
+                    OR p.familyName like concat(cast(:name as text), '%')
                """)
     List<HsOfficePersonEntity> findPersonByOptionalNameLike(String name);
 

src/main/java/net/hostsharing/hsadminng/hs/office/relationship/HsOfficeRelationshipEntity.java

@@ -1,12 +1,10 @@
 package net.hostsharing.hsadminng.hs.office.relationship;
 
-import com.vladmihalcea.hibernate.type.basic.PostgreSQLEnumType;
 import lombok.*;
 import lombok.experimental.FieldNameConstants;
 import net.hostsharing.hsadminng.hs.office.contact.HsOfficeContactEntity;
 import net.hostsharing.hsadminng.hs.office.person.HsOfficePersonEntity;
 import net.hostsharing.hsadminng.stringify.Stringify;
-import org.hibernate.annotations.Type;
 
 import jakarta.persistence.*;
 import java.util.UUID;
@@ -47,7 +45,6 @@ public class HsOfficeRelationshipEntity {
 
     @Column(name = "reltype")
     @Enumerated(EnumType.STRING)
-    @Type(PostgreSQLEnumType.class)
     private HsOfficeRelationshipType relType;
 
     @Override

src/main/java/net/hostsharing/hsadminng/hs/office/sepamandate/HsOfficeSepaMandateEntity.java

@@ -54,6 +54,7 @@ public class HsOfficeSepaMandateEntity implements Stringifyable {
 
     @Column(name = "validity", columnDefinition = "daterange")
     @Type(PostgreSQLRangeType.class)
+    @Builder.Default
     private Range<LocalDate> validity = Range.infinite(LocalDate.class);
 
     public void setValidFrom(final LocalDate validFrom) {

src/main/java/net/hostsharing/hsadminng/hs/office/sepamandate/HsOfficeSepaMandateRepository.java

@@ -14,7 +14,7 @@ public interface HsOfficeSepaMandateRepository extends Repository<HsOfficeSepaMa
     @Query("""
             SELECT mandate FROM HsOfficeSepaMandateEntity mandate
                 WHERE :iban is null
-                    OR mandate.bankAccount.iban like concat(:iban, '%')
+                    OR mandate.bankAccount.iban like concat(cast(:iban as text), '%')
                 ORDER BY mandate.bankAccount.iban
                """)
     List<HsOfficeSepaMandateEntity> findSepaMandateByOptionalIban(String iban);

src/main/java/net/hostsharing/hsadminng/mapper/PostgresArray.java

@@ -0,0 +1,58 @@
+package net.hostsharing.hsadminng.mapper;
+
+import lombok.experimental.UtilityClass;
+import org.postgresql.util.PGtokenizer;
+
+import java.lang.reflect.Array;
+import java.nio.charset.StandardCharsets;
+import java.util.function.Function;
+
+@UtilityClass
+public class PostgresArray {
+
+    /**
+     * Converts a byte[], as returned for a Postgres-array by native queries, to a Java array.
+     *
+     * <p>This example code worked with Hibernate 5 (Spring Boot 3.0.x):
+     * <pre><code>
+     *      return (UUID[]) em.createNativeQuery("select currentSubjectsUuids() as uuids", UUID[].class).getSingleResult();
+     * </code></pre>
+     * </p>
+     *
+     * <p>With Hibernate 6 (Spring Boot 3.1.x), this utility method can be used like such:
+     * <pre><code>
+     *      final byte[] result = (byte[]) em.createNativeQuery("select * from currentSubjectsUuids() as uuids", UUID[].class)
+     *                 .getSingleResult();
+     *      return fromPostgresArray(result, UUID.class, UUID::fromString);
+     * </code></pre>
+     * </p>
+     *
+     * @param pgArray the byte[] returned by a native query containing as rendered for a Postgres array
+     * @param elementClass the class of a single element of the Java array to be returned
+     * @param itemParser converts a string element to the specified elementClass
+     * @return a Java array containing the data from pgArray
+     * @param <T> type of a single element of the Java array
+     */
+    public static <T> T[] fromPostgresArray(final byte[] pgArray, final Class<T> elementClass, final Function<String, T> itemParser) {
+        final var pgArrayLiteral = new String(pgArray, StandardCharsets.UTF_8);
+        if (pgArrayLiteral.length() == 2) {
+            return newGenericArray(elementClass, 0);
+        }
+        final PGtokenizer tokenizer = new PGtokenizer(pgArrayLiteral.substring(1, pgArrayLiteral.length()-1), ',');
+        tokenizer.remove("\"", "\"");
+        final T[] array = newGenericArray(elementClass, tokenizer.getSize()); // Create a new array of the specified type and length
+        for ( int n = 0; n < tokenizer.getSize(); ++n ) {
+            final String token = tokenizer.getToken(n);
+            if ( !"NULL".equals(token) ) {
+                array[n] = itemParser.apply(token.trim().replace("\\\"", "\""));
+            }
+        }
+        return array;
+    }
+
+    @SuppressWarnings("unchecked")
+    private static <T> T[] newGenericArray(final Class<T> elementClass, final int length) {
+        return (T[]) Array.newInstance(elementClass, length);
+    }
+
+}

src/main/java/net/hostsharing/hsadminng/rbac/rbacuser/RbacUserRepository.java

@@ -11,7 +11,7 @@ public interface RbacUserRepository extends Repository<RbacUserEntity, UUID> {
 
     @Query("""
              select u from RbacUserEntity u
-                 where :userName is null or u.name like concat(:userName, '%')
+                 where :userName is null or u.name like concat(cast(:userName as text), '%')
                  order by u.name
             """)
     List<RbacUserEntity> findByOptionalNameLike(String userName);

src/main/java/net/hostsharing/hsadminng/test/cust/TestCustomerController.java

@@ -11,7 +11,6 @@ import org.springframework.web.bind.annotation.RestController;
 import org.springframework.web.servlet.mvc.method.annotation.MvcUriComponentsBuilder;
 
 import java.util.List;
-import java.util.UUID;
 
 @RestController
 public class TestCustomerController implements TestCustomersApi {

src/main/java/net/hostsharing/hsadminng/test/cust/TestCustomerRepository.java

@@ -12,7 +12,7 @@ public interface TestCustomerRepository extends Repository<TestCustomerEntity, U
 
     Optional<TestCustomerEntity> findByUuid(UUID id);
 
-    @Query("SELECT c FROM TestCustomerEntity c WHERE :prefix is null or c.prefix like concat(:prefix, '%')")
+    @Query("SELECT c FROM TestCustomerEntity c WHERE :prefix is null or c.prefix like concat(cast(:prefix as text), '%')")
     List<TestCustomerEntity> findCustomerByOptionalPrefixLike(String prefix);
 
     TestCustomerEntity save(final TestCustomerEntity entity);

src/main/java/net/hostsharing/hsadminng/test/pac/TestPackageRepository.java

@@ -8,7 +8,7 @@ import java.util.UUID;
 
 public interface TestPackageRepository extends Repository<TestPackageEntity, UUID> {
 
-    @Query("SELECT p FROM TestPackageEntity p WHERE :name is null or p.name like concat(:name, '%')")
+    @Query("SELECT p FROM TestPackageEntity p WHERE :name is null or p.name like concat(cast(:name as text), '%')")
     List<TestPackageEntity> findAllByOptionalNameLike(final String name);
 
     TestPackageEntity findByUuid(UUID packageUuid);

src/main/resources/db/changelog/206-hs-office-contact-migration.sql

@@ -0,0 +1,96 @@
+--liquibase formatted sql
+
+-- TODO: These changesets are just for the external remote views to simulate the legacy tables.
+--  Once we don't need the external remote views anymore, create revert changesets.
+
+-- ============================================================================
+--changeset hs-office-contact-MIGRATION-mapping:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+CREATE TABLE hs_office_contact_legacy_id
+(
+    uuid        uuid NOT NULL REFERENCES hs_office_contact(uuid),
+    contact_id  integer NOT NULL
+);
+--//
+
+
+-- ============================================================================
+--changeset hs-office-contact-MIGRATION-sequence:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+CREATE SEQUENCE IF NOT EXISTS hs_office_contact_legacy_id_seq
+    AS integer
+    START 1000000000
+    OWNED BY hs_office_contact_legacy_id.contact_id;
+--//
+
+
+-- ============================================================================
+--changeset hs-office-contact-MIGRATION-default:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+ALTER TABLE hs_office_contact_legacy_id
+    ALTER COLUMN contact_id
+        SET DEFAULT nextVal('hs_office_contact_legacy_id_seq');
+
+--/
+
+-- ============================================================================
+--changeset hs-office-contact-MIGRATION-insert:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+CALL defineContext('schema-migration');
+INSERT INTO hs_office_contact_legacy_id(uuid, contact_id)
+    SELECT uuid, nextVal('hs_office_contact_legacy_id_seq') FROM hs_office_contact;
+--/
+
+
+-- ============================================================================
+--changeset hs-office-contact-MIGRATION-insert-trigger:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+create or replace function insertContactLegacyIdMapping()
+    returns trigger
+    language plpgsql
+    strict as $$
+begin
+    if TG_OP <> 'INSERT' then
+        raise exception 'invalid usage of trigger';
+    end if;
+
+    INSERT INTO hs_office_contact_legacy_id VALUES
+        (NEW.uuid, nextVal('hs_office_contact_legacy_id_seq'));
+
+    return NEW;
+end; $$;
+
+create trigger createContactLegacyIdMapping
+    after insert on hs_office_contact
+        for each row
+            execute procedure insertContactLegacyIdMapping();
+--/
+
+
+-- ============================================================================
+--changeset hs-office-contact-MIGRATION-delete-trigger:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+create or replace function deleteContactLegacyIdMapping()
+    returns trigger
+    language plpgsql
+    strict as $$
+begin
+    if TG_OP <> 'DELETE' then
+        raise exception 'invalid usage of trigger';
+    end if;
+
+    DELETE FROM hs_office_contact_legacy_id
+           WHERE uuid = OLD.uuid;
+
+    return OLD;
+end; $$;
+
+create trigger removeContactLegacyIdMapping
+    before delete on hs_office_contact
+        for each row
+            execute procedure deleteContactLegacyIdMapping();
+--/

src/main/resources/db/changelog/226-hs-office-partner-migration.sql

@@ -0,0 +1,95 @@
+--liquibase formatted sql
+
+-- TODO: These changesets are just for the external remote views to simulate the legacy tables.
+--  Once we don't need the external remote views anymore, create revert changesets.
+
+-- ============================================================================
+--changeset hs-office-partner-MIGRATION-mapping:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+CREATE TABLE hs_office_partner_legacy_id
+(
+    uuid        uuid NOT NULL REFERENCES hs_office_partner(uuid),
+    bp_id       integer NOT NULL
+);
+--//
+
+
+-- ============================================================================
+--changeset hs-office-partner-MIGRATION-sequence:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+CREATE SEQUENCE IF NOT EXISTS hs_office_partner_legacy_id_seq
+    AS integer
+    START 1000000000
+    OWNED BY hs_office_partner_legacy_id.bp_id;
+--//
+
+
+-- ============================================================================
+--changeset hs-office-partner-MIGRATION-default:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+ALTER TABLE hs_office_partner_legacy_id
+    ALTER COLUMN bp_id
+        SET DEFAULT nextVal('hs_office_partner_legacy_id_seq');
+--/
+
+-- ============================================================================
+--changeset hs-office-partner-MIGRATION-insert:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+CALL defineContext('schema-migration');
+INSERT INTO hs_office_partner_legacy_id(uuid, bp_id)
+    SELECT uuid, nextVal('hs_office_partner_legacy_id_seq') FROM hs_office_partner;
+--/
+
+
+-- ============================================================================
+--changeset hs-office-partner-MIGRATION-insert-trigger:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+create or replace function insertPartnerLegacyIdMapping()
+    returns trigger
+    language plpgsql
+    strict as $$
+begin
+    if TG_OP <> 'INSERT' then
+        raise exception 'invalid usage of trigger';
+    end if;
+
+    INSERT INTO hs_office_partner_legacy_id VALUES
+        (NEW.uuid, nextVal('hs_office_partner_legacy_id_seq'));
+
+    return NEW;
+end; $$;
+
+create trigger createPartnerLegacyIdMapping
+    after insert on hs_office_partner
+        for each row
+            execute procedure insertPartnerLegacyIdMapping();
+--/
+
+
+-- ============================================================================
+--changeset hs-office-partner-MIGRATION-delete-trigger:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+create or replace function deletePartnerLegacyIdMapping()
+    returns trigger
+    language plpgsql
+    strict as $$
+begin
+    if TG_OP <> 'DELETE' then
+        raise exception 'invalid usage of trigger';
+    end if;
+
+    DELETE FROM hs_office_partner_legacy_id
+        WHERE uuid = OLD.uuid;
+
+    return OLD;
+end; $$;
+
+create trigger removePartnerLegacyIdMapping
+    before delete on hs_office_partner
+    for each row
+        execute procedure deletePartnerLegacyIdMapping();
+--/

src/main/resources/db/changelog/256-hs-office-sepamandate-migration.sql

@@ -0,0 +1,97 @@
+--liquibase formatted sql
+
+-- TODO: These changesets are just for the external remote views to simulate the legacy tables.
+--  Once we don't need the external remote views anymore, create revert changesets.
+
+-- ============================================================================
+--changeset hs-office-sepamandate-MIGRATION-mapping:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+CREATE TABLE hs_office_sepamandate_legacy_id
+(
+    uuid            uuid NOT NULL REFERENCES hs_office_sepamandate(uuid),
+    sepa_mandat_id  integer NOT NULL
+);
+--//
+
+
+-- ============================================================================
+--changeset hs-office-sepamandate-MIGRATION-sequence:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+CREATE SEQUENCE IF NOT EXISTS hs_office_sepamandate_legacy_id_seq
+    AS integer
+    START 1000000000
+    OWNED BY hs_office_sepamandate_legacy_id.sepa_mandat_id;
+--//
+
+
+-- ============================================================================
+--changeset hs-office-sepamandate-MIGRATION-default:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+ALTER TABLE hs_office_sepamandate_legacy_id
+    ALTER COLUMN sepa_mandat_id
+        SET DEFAULT nextVal('hs_office_sepamandate_legacy_id_seq');
+
+--/
+
+
+-- ============================================================================
+--changeset hs-office-sepamandate-MIGRATION-insert:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+CALL defineContext('schema-migration');
+INSERT INTO hs_office_sepamandate_legacy_id(uuid, sepa_mandat_id)
+    SELECT uuid, nextVal('hs_office_sepamandate_legacy_id_seq') FROM hs_office_sepamandate;
+--/
+
+
+-- ============================================================================
+--changeset hs-office-sepamandate-MIGRATION-insert-trigger:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+create or replace function insertSepaMandateLegacyIdMapping()
+    returns trigger
+    language plpgsql
+    strict as $$
+begin
+    if TG_OP <> 'INSERT' then
+        raise exception 'invalid usage of trigger';
+    end if;
+
+    INSERT INTO hs_office_sepamandate_legacy_id VALUES
+        (NEW.uuid, nextVal('hs_office_sepamandate_legacy_id_seq'));
+
+    return NEW;
+end; $$;
+
+create trigger createSepaMandateLegacyIdMapping
+    after insert on hs_office_sepamandate
+        for each row
+            execute procedure insertSepaMandateLegacyIdMapping();
+--/
+
+
+-- ============================================================================
+--changeset hs-office-sepamandate-MIGRATION-delete-trigger:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+create or replace function deleteSepaMandateLegacyIdMapping()
+    returns trigger
+    language plpgsql
+    strict as $$
+begin
+    if TG_OP <> 'DELETE' then
+        raise exception 'invalid usage of trigger';
+    end if;
+
+    DELETE FROM hs_office_sepamandate_legacy_id
+           WHERE uuid = OLD.uuid;
+
+    return OLD;
+end; $$;
+
+create trigger removeSepaMandateLegacyIdMapping
+    before delete on hs_office_sepamandate
+        for each row
+            execute procedure deleteSepaMandateLegacyIdMapping();
+--/

src/main/resources/db/changelog/316-hs-office-coopshares-migration.sql

@@ -0,0 +1,96 @@
+--liquibase formatted sql
+
+-- TODO: These changesets are just for the external remote views to simulate the legacy tables.
+--  Once we don't need the external remote views anymore, create revert changesets.
+
+-- ============================================================================
+--changeset hs-office-coopshares-MIGRATION-mapping:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+CREATE TABLE hs_office_coopsharestransaction_legacy_id
+(
+    uuid            uuid NOT NULL REFERENCES hs_office_coopsharestransaction(uuid),
+    member_share_id  integer NOT NULL
+);
+--//
+
+
+-- ============================================================================
+--changeset hs-office-coopshares-MIGRATION-sequence:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+CREATE SEQUENCE IF NOT EXISTS hs_office_coopsharestransaction_legacy_id_seq
+    AS integer
+    START 1000000000
+    OWNED BY hs_office_coopsharestransaction_legacy_id.member_share_id;
+--//
+
+
+-- ============================================================================
+--changeset hs-office-coopshares-MIGRATION-default:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+ALTER TABLE hs_office_coopsharestransaction_legacy_id
+    ALTER COLUMN member_share_id
+        SET DEFAULT nextVal('hs_office_coopsharestransaction_legacy_id_seq');
+
+--/
+
+-- ============================================================================
+--changeset hs-office-coopshares-MIGRATION-insert:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+CALL defineContext('schema-migration');
+INSERT INTO hs_office_coopsharestransaction_legacy_id(uuid, member_share_id)
+    SELECT uuid, nextVal('hs_office_coopsharestransaction_legacy_id_seq') FROM hs_office_coopsharestransaction;
+--/
+
+
+-- ============================================================================
+--changeset hs-office-coopShares-MIGRATION-insert-trigger:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+create or replace function insertCoopSharesLegacyIdMapping()
+    returns trigger
+    language plpgsql
+    strict as $$
+begin
+    if TG_OP <> 'INSERT' then
+        raise exception 'invalid usage of trigger';
+    end if;
+
+    INSERT INTO hs_office_coopsharestransaction_legacy_id VALUES
+        (NEW.uuid, nextVal('hs_office_coopsharestransaction_legacy_id_seq'));
+
+    return NEW;
+end; $$;
+
+create trigger createCoopSharesLegacyIdMapping
+    after insert on hs_office_coopsharestransaction
+        for each row
+            execute procedure insertCoopSharesLegacyIdMapping();
+--/
+
+
+-- ============================================================================
+--changeset hs-office-coopShares-MIGRATION-delete-trigger:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+create or replace function deleteCoopSharesLegacyIdMapping()
+    returns trigger
+    language plpgsql
+    strict as $$
+begin
+    if TG_OP <> 'DELETE' then
+        raise exception 'invalid usage of trigger';
+    end if;
+
+    DELETE FROM hs_office_coopsharestransaction_legacy_id
+           WHERE uuid = OLD.uuid;
+
+    return OLD;
+end; $$;
+
+create trigger removeCoopSharesLegacyIdMapping
+    before delete on hs_office_coopsharestransaction
+        for each row
+            execute procedure deleteCoopSharesLegacyIdMapping();
+--/

src/main/resources/db/changelog/326-hs-office-coopassets-migration.sql

@@ -0,0 +1,96 @@
+--liquibase formatted sql
+
+-- TODO: These changesets are just for the external remote views to simulate the legacy tables.
+--  Once we don't need the external remote views anymore, create revert changesets.
+
+-- ============================================================================
+--changeset hs-office-coopassets-MIGRATION-mapping:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+CREATE TABLE hs_office_coopassetstransaction_legacy_id
+(
+    uuid            uuid NOT NULL REFERENCES hs_office_coopassetstransaction(uuid),
+    member_asset_id  integer NOT NULL
+);
+--//
+
+
+-- ============================================================================
+--changeset hs-office-coopassets-MIGRATION-sequence:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+CREATE SEQUENCE IF NOT EXISTS hs_office_coopassetstransaction_legacy_id_seq
+    AS integer
+    START 1000000000
+    OWNED BY hs_office_coopassetstransaction_legacy_id.member_asset_id;
+--//
+
+
+-- ============================================================================
+--changeset hs-office-coopassets-MIGRATION-default:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+ALTER TABLE hs_office_coopassetstransaction_legacy_id
+    ALTER COLUMN member_asset_id
+        SET DEFAULT nextVal('hs_office_coopassetstransaction_legacy_id_seq');
+--/
+
+
+-- ============================================================================
+--changeset hs-office-coopassets-MIGRATION-insert:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+CALL defineContext('schema-migration');
+INSERT INTO hs_office_coopassetstransaction_legacy_id(uuid, member_asset_id)
+    SELECT uuid, nextVal('hs_office_coopassetstransaction_legacy_id_seq') FROM hs_office_coopassetstransaction;
+--/
+
+
+-- ============================================================================
+--changeset hs-office-coopAssets-MIGRATION-insert-trigger:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+create or replace function insertCoopAssetsLegacyIdMapping()
+    returns trigger
+    language plpgsql
+    strict as $$
+begin
+    if TG_OP <> 'INSERT' then
+        raise exception 'invalid usage of trigger';
+    end if;
+
+    INSERT INTO hs_office_coopassetstransaction_legacy_id VALUES
+        (NEW.uuid, nextVal('hs_office_coopassetstransaction_legacy_id_seq'));
+
+    return NEW;
+end; $$;
+
+create trigger createCoopAssetsLegacyIdMapping
+    after insert on hs_office_coopassetstransaction
+        for each row
+            execute procedure insertCoopAssetsLegacyIdMapping();
+--/
+
+
+-- ============================================================================
+--changeset hs-office-coopAssets-MIGRATION-delete-trigger:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+create or replace function deleteCoopAssetsLegacyIdMapping()
+    returns trigger
+    language plpgsql
+    strict as $$
+begin
+    if TG_OP <> 'DELETE' then
+        raise exception 'invalid usage of trigger';
+    end if;
+
+    DELETE FROM hs_office_coopassetstransaction_legacy_id
+           WHERE uuid = OLD.uuid;
+
+    return OLD;
+end; $$;
+
+create trigger removeCoopAssetsLegacyIdMapping
+    before delete on hs_office_coopassetstransaction
+        for each row
+            execute procedure deleteCoopAssetsLegacyIdMapping();
+--/

src/main/resources/db/changelog/db.changelog-master.yaml

@@ -53,6 +53,8 @@ databaseChangeLog:
         file: db/changelog/200-hs-office-contact.sql
     - include:
         file: db/changelog/203-hs-office-contact-rbac.sql
+    - include:
+        file: db/changelog/206-hs-office-contact-migration.sql
     - include:
         file: db/changelog/208-hs-office-contact-test-data.sql
     - include:
@@ -67,6 +69,8 @@ databaseChangeLog:
         file: db/changelog/223-hs-office-partner-rbac.sql
     - include:
         file: db/changelog/224-hs-office-partner-details-rbac.sql
+    - include:
+        file: db/changelog/226-hs-office-partner-migration.sql
     - include:
         file: db/changelog/228-hs-office-partner-test-data.sql
     - include:
@@ -80,7 +84,7 @@ databaseChangeLog:
     - include:
         file: db/changelog/243-hs-office-bankaccount-rbac.sql
     - include:
-        file: db/changelog/248-hs-office-bankaccount-test-data.sql
+          file: db/changelog/248-hs-office-bankaccount-test-data.sql
     - include:
         file: db/changelog/270-hs-office-debitor.sql
     - include:
@@ -91,6 +95,8 @@ databaseChangeLog:
         file: db/changelog/250-hs-office-sepamandate.sql
     - include:
         file: db/changelog/253-hs-office-sepamandate-rbac.sql
+    - include:
+          file: db/changelog/256-hs-office-sepamandate-migration.sql
     - include:
         file: db/changelog/258-hs-office-sepamandate-test-data.sql
     - include:
@@ -103,11 +109,15 @@ databaseChangeLog:
         file: db/changelog/310-hs-office-coopshares.sql
     - include:
         file: db/changelog/313-hs-office-coopshares-rbac.sql
+    - include:
+          file: db/changelog/316-hs-office-coopshares-migration.sql
     - include:
         file: db/changelog/318-hs-office-coopshares-test-data.sql
     - include:
           file: db/changelog/320-hs-office-coopassets.sql
     - include:
           file: db/changelog/323-hs-office-coopassets-rbac.sql
+    - include:
+          file: db/changelog/326-hs-office-coopassets-migration.sql
     - include:
           file: db/changelog/328-hs-office-coopassets-test-data.sql

src/test/java/net/hostsharing/hsadminng/hs/office/bankaccount/HsOfficeBankAccountControllerRestTest.java

@@ -83,7 +83,7 @@ class HsOfficeBankAccountControllerRestTest {
     enum InvalidBicTestCase {
         TOO_SHORT("BEVODEB", "Bic length must be 8 or 11"),
         TOO_LONG("BEVODEBBX", "Bic length must be 8 or 11"),
-        INVALID_CHARACTER("BEV-ODEB", "Bank code must contain only letters.");
+        INVALID_CHARACTER("BEV-ODEB", "Bank code must contain only alphanumeric.");
 
         private final String givenBic;
         private final String expectedErrorMessage;

src/test/java/net/hostsharing/hsadminng/hs/office/bankaccount/TestHsOfficeBankAccount.java

@@ -1,6 +1,5 @@
 package net.hostsharing.hsadminng.hs.office.bankaccount;
 
-import java.util.UUID;
 
 public class TestHsOfficeBankAccount {
 

src/test/java/net/hostsharing/hsadminng/hs/office/contact/HsOfficeContactRepositoryIntegrationTest.java

@@ -28,7 +28,6 @@ import static net.hostsharing.hsadminng.rbac.rbacgrant.RawRbacGrantEntity.grantD
 import static net.hostsharing.hsadminng.rbac.rbacrole.RawRbacRoleEntity.roleNamesOf;
 import static net.hostsharing.test.JpaAttempt.attempt;
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assumptions.assumeThat;
 
 @DataJpaTest
 @Import( { Context.class, JpaAttempt.class })
@@ -237,10 +236,6 @@ class HsOfficeContactRepositoryIntegrationTest extends ContextBasedTest {
             final var initialRoleNames = roleNamesOf(rawRoleRepo.findAll());
             final var initialGrantNames = grantDisplaysOf(rawGrantRepo.findAll());
             final var givenContact = givenSomeTemporaryContact("selfregistered-user-drew@hostsharing.org");
-            assumeThat(rawRoleRepo.findAll().size()).as("unexpected number of roles created")
-                    .isEqualTo(initialRoleNames.size() + 3);
-            assumeThat(rawGrantRepo.findAll().size()).as("unexpected number of grants created")
-                    .isEqualTo(initialGrantNames.size() + 7);
 
             // when
             final var result = jpaAttempt.transacted(() -> {

src/test/java/net/hostsharing/hsadminng/hs/office/contact/TestHsOfficeContact.java

@@ -1,6 +1,5 @@
 package net.hostsharing.hsadminng.hs.office.contact;
 
-import java.util.UUID;
 
 public class TestHsOfficeContact {
 

src/test/java/net/hostsharing/hsadminng/hs/office/debitor/HsOfficeDebitorControllerAcceptanceTest.java

@@ -26,7 +26,6 @@ import java.util.UUID;
 import static net.hostsharing.test.IsValidUuidMatcher.isUuidValid;
 import static net.hostsharing.test.JsonMatcher.lenientlyEquals;
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assumptions.assumeThat;
 import static org.hamcrest.Matchers.*;
 
 @SpringBootTest(
@@ -481,7 +480,7 @@ class HsOfficeDebitorControllerAcceptanceTest {
         void contactAdminUser_canNotDeleteRelatedDebitor() {
             context.define("superuser-alex@hostsharing.net");
             final var givenDebitor = givenSomeTemporaryDebitor();
-            assumeThat(givenDebitor.getBillingContact().getLabel()).isEqualTo("forth contact");
+            assertThat(givenDebitor.getBillingContact().getLabel()).isEqualTo("forth contact");
 
             RestAssured // @formatter:off
                 .given()
@@ -501,7 +500,7 @@ class HsOfficeDebitorControllerAcceptanceTest {
         void normalUser_canNotDeleteUnrelatedDebitor() {
             context.define("superuser-alex@hostsharing.net");
             final var givenDebitor = givenSomeTemporaryDebitor();
-            assumeThat(givenDebitor.getBillingContact().getLabel()).isEqualTo("forth contact");
+            assertThat(givenDebitor.getBillingContact().getLabel()).isEqualTo("forth contact");
 
             RestAssured // @formatter:off
                 .given()

src/test/java/net/hostsharing/hsadminng/hs/office/debitor/TestHsOfficeDebitor.java

@@ -2,7 +2,6 @@ package net.hostsharing.hsadminng.hs.office.debitor;
 
 import lombok.experimental.UtilityClass;
 
-import java.util.UUID;
 
 import static net.hostsharing.hsadminng.hs.office.contact.TestHsOfficeContact.TEST_CONTACT;
 import static net.hostsharing.hsadminng.hs.office.partner.TestHsOfficePartner.TEST_PARTNER;

src/test/java/net/hostsharing/hsadminng/hs/office/membership/HsOfficeMembershipRepositoryIntegrationTest.java

@@ -32,7 +32,6 @@ import static net.hostsharing.hsadminng.rbac.rbacgrant.RawRbacGrantEntity.grantD
 import static net.hostsharing.hsadminng.rbac.rbacrole.RawRbacRoleEntity.roleNamesOf;
 import static net.hostsharing.test.JpaAttempt.attempt;
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assumptions.assumeThat;
 
 @DataJpaTest
 @Import( { Context.class, JpaAttempt.class })
@@ -327,7 +326,7 @@ class HsOfficeMembershipRepositoryIntegrationTest extends ContextBasedTest {
             // when
             final var result = jpaAttempt.transacted(() -> {
                 context("superuser-alex@hostsharing.net", "hs_office_debitor#10003ThirdOHG-thirdcontact.admin");
-                assumeThat(membershipRepo.findByUuid(givenMembership.getUuid())).isPresent();
+                assertThat(membershipRepo.findByUuid(givenMembership.getUuid())).isPresent();
 
                 membershipRepo.deleteByUuid(givenMembership.getUuid());
             });

src/test/java/net/hostsharing/hsadminng/hs/office/membership/TestHsMembership.java

@@ -3,7 +3,6 @@ package net.hostsharing.hsadminng.hs.office.membership;
 import com.vladmihalcea.hibernate.type.range.Range;
 
 import java.time.LocalDate;
-import java.util.UUID;
 
 import static net.hostsharing.hsadminng.hs.office.partner.TestHsOfficePartner.TEST_PARTNER;
 

src/test/java/net/hostsharing/hsadminng/hs/office/partner/HsOfficePartnerControllerAcceptanceTest.java

@@ -24,7 +24,6 @@ import java.util.UUID;
 import static net.hostsharing.test.IsValidUuidMatcher.isUuidValid;
 import static net.hostsharing.test.JsonMatcher.lenientlyEquals;
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assumptions.assumeThat;
 import static org.hamcrest.Matchers.is;
 import static org.hamcrest.Matchers.startsWith;
 
@@ -408,7 +407,7 @@ class HsOfficePartnerControllerAcceptanceTest {
         void contactAdminUser_canNotDeleteRelatedPartner() {
             context.define("superuser-alex@hostsharing.net");
             final var givenPartner = givenSomeTemporaryPartnerBessler();
-            assumeThat(givenPartner.getContact().getLabel()).isEqualTo("forth contact");
+            assertThat(givenPartner.getContact().getLabel()).isEqualTo("forth contact");
 
             RestAssured // @formatter:off
                 .given()
@@ -428,7 +427,7 @@ class HsOfficePartnerControllerAcceptanceTest {
         void normalUser_canNotDeleteUnrelatedPartner() {
             context.define("superuser-alex@hostsharing.net");
             final var givenPartner = givenSomeTemporaryPartnerBessler();
-            assumeThat(givenPartner.getContact().getLabel()).isEqualTo("forth contact");
+            assertThat(givenPartner.getContact().getLabel()).isEqualTo("forth contact");
 
             RestAssured // @formatter:off
                 .given()

src/test/java/net/hostsharing/hsadminng/hs/office/partner/HsOfficePartnerRepositoryIntegrationTest.java

@@ -29,7 +29,6 @@ import static net.hostsharing.hsadminng.rbac.rbacgrant.RawRbacGrantEntity.grantD
 import static net.hostsharing.hsadminng.rbac.rbacrole.RawRbacRoleEntity.roleNamesOf;
 import static net.hostsharing.test.JpaAttempt.attempt;
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assumptions.assumeThat;
 
 @DataJpaTest
 @Import( { Context.class, JpaAttempt.class })
@@ -330,7 +329,7 @@ class HsOfficePartnerRepositoryIntegrationTest extends ContextBasedTest {
             // when
             final var result = jpaAttempt.transacted(() -> {
                 context("person-ErbenBesslerMelBessler@example.com");
-                assumeThat(partnerRepo.findByUuid(givenPartner.getUuid())).isPresent();
+                assertThat(partnerRepo.findByUuid(givenPartner.getUuid())).isPresent();
 
                 partnerRepo.deleteByUuid(givenPartner.getUuid());
             });
@@ -352,10 +351,6 @@ class HsOfficePartnerRepositoryIntegrationTest extends ContextBasedTest {
             final var initialRoleNames = Array.from(roleNamesOf(rawRoleRepo.findAll()));
             final var initialGrantNames = Array.from(grantDisplaysOf(rawGrantRepo.findAll()));
             final var givenPartner = givenSomeTemporaryPartnerBessler("twelfth");
-            assumeThat(rawRoleRepo.findAll().size()).as("unexpected number of roles created")
-                    .isEqualTo(initialRoleNames.length + 3);
-            assumeThat(rawGrantRepo.findAll().size()).as("unexpected number of grants created")
-                    .isEqualTo(initialGrantNames.length + 10);
 
             // when
             final var result = jpaAttempt.transacted(() -> {

src/test/java/net/hostsharing/hsadminng/hs/office/partner/TestHsOfficePartner.java

@@ -3,7 +3,6 @@ package net.hostsharing.hsadminng.hs.office.partner;
 import net.hostsharing.hsadminng.hs.office.contact.HsOfficeContactEntity;
 import net.hostsharing.hsadminng.hs.office.person.HsOfficePersonEntity;
 
-import java.util.UUID;
 
 import static net.hostsharing.hsadminng.hs.office.person.HsOfficePersonType.LEGAL;
 

src/test/java/net/hostsharing/hsadminng/hs/office/person/HsOfficePersonRepositoryIntegrationTest.java

@@ -27,7 +27,6 @@ import static net.hostsharing.hsadminng.rbac.rbacgrant.RawRbacGrantEntity.grantD
 import static net.hostsharing.hsadminng.rbac.rbacrole.RawRbacRoleEntity.roleNamesOf;
 import static net.hostsharing.test.JpaAttempt.attempt;
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assumptions.assumeThat;
 
 @DataJpaTest
 @Import( { Context.class, JpaAttempt.class })
@@ -244,10 +243,6 @@ class HsOfficePersonRepositoryIntegrationTest extends ContextBasedTest {
             final var initialRoleNames = roleNamesOf(rawRoleRepo.findAll());
             final var initialGrantNames = grantDisplaysOf(rawGrantRepo.findAll());
             final var givenPerson = givenSomeTemporaryPerson("selfregistered-user-drew@hostsharing.org");
-            assumeThat(rawRoleRepo.findAll().size()).as("unexpected number of roles created")
-                    .isEqualTo(initialRoleNames.size() + 3);
-            assumeThat(rawGrantRepo.findAll().size()).as("unexpected number of grants created")
-                    .isEqualTo(initialGrantNames.size() + 7);
 
             // when
             final var result = jpaAttempt.transacted(() -> {

src/test/java/net/hostsharing/hsadminng/hs/office/person/TestHsOfficePerson.java

@@ -1,6 +1,5 @@
 package net.hostsharing.hsadminng.hs.office.person;
 
-import java.util.UUID;
 
 public class TestHsOfficePerson {
 

src/test/java/net/hostsharing/hsadminng/hs/office/relationship/HsOfficeRelationshipControllerAcceptanceTest.java

@@ -25,7 +25,6 @@ import java.util.UUID;
 import static net.hostsharing.test.IsValidUuidMatcher.isUuidValid;
 import static net.hostsharing.test.JsonMatcher.lenientlyEquals;
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assumptions.assumeThat;
 import static org.hamcrest.Matchers.is;
 import static org.hamcrest.Matchers.startsWith;
 

src/test/java/net/hostsharing/hsadminng/hs/office/sepamandate/HsOfficeSepaMandateEntityUnitTest.java

@@ -1,6 +1,5 @@
 package net.hostsharing.hsadminng.hs.office.sepamandate;
 
-import com.vladmihalcea.hibernate.type.range.Range;
 import net.hostsharing.hsadminng.hs.office.bankaccount.HsOfficeBankAccountEntity;
 import org.junit.jupiter.api.Test;
 

src/test/java/net/hostsharing/hsadminng/hs/office/sepamandate/HsOfficeSepaMandateRepositoryIntegrationTest.java

@@ -31,7 +31,6 @@ import static net.hostsharing.hsadminng.rbac.rbacgrant.RawRbacGrantEntity.grantD
 import static net.hostsharing.hsadminng.rbac.rbacrole.RawRbacRoleEntity.roleNamesOf;
 import static net.hostsharing.test.JpaAttempt.attempt;
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assumptions.assumeThat;
 
 @DataJpaTest
 @Import({ Context.class, JpaAttempt.class })
@@ -346,7 +345,7 @@ class HsOfficeSepaMandateRepositoryIntegrationTest extends ContextBasedTest {
             // when
             final var result = jpaAttempt.transacted(() -> {
                 context("bankaccount-admin@ThirdOHG.example.com");
-                assumeThat(sepaMandateRepo.findByUuid(givenSepaMandate.getUuid())).isPresent();
+                assertThat(sepaMandateRepo.findByUuid(givenSepaMandate.getUuid())).isPresent();
 
                 sepaMandateRepo.deleteByUuid(givenSepaMandate.getUuid());
             });

src/test/java/net/hostsharing/hsadminng/mapper/PostgresArrayIntegrationTest.java

@@ -0,0 +1,88 @@
+package net.hostsharing.hsadminng.mapper;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+
+import jakarta.persistence.EntityManager;
+
+import java.util.UUID;
+import java.util.function.Function;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@DataJpaTest
+class PostgresArrayIntegrationTest {
+
+    @Autowired
+    EntityManager em;
+
+    @Test
+    void shouldCreateEmptyArray() {
+        em.createNativeQuery("""            
+            create or replace function returnEmptyArray()
+                returns text[]
+                stable leakproof
+                language plpgsql as $$
+            declare
+                emptyArray text[] = '{}';
+            begin
+                return emptyArray;
+            end; $$;
+            """).executeUpdate();
+        final byte[] pgArray = (byte[]) em.createNativeQuery("SELECT returnEmptyArray()", String[].class).getSingleResult();
+
+        final String[] result = PostgresArray.fromPostgresArray(pgArray, String.class, Function.identity());
+
+        assertThat(result).isEmpty();
+    }
+
+    @Test
+    void shouldCreateStringArray() {
+        em.createNativeQuery("""            
+            create or replace function returnStringArray()
+                returns varchar(63)[]
+                stable leakproof
+                language plpgsql as $$
+            declare
+                text1 text = 'one';
+                text2 text = 'two, three';
+                text3 text = 'four; five';
+                text4 text = 'say "Hello" to me';
+            begin
+                return array[text1, text2, text3, null, text4];
+            end; $$;
+            """).executeUpdate();
+        final byte[] pgArray = (byte[]) em.createNativeQuery("SELECT returnStringArray()", String[].class).getSingleResult();
+
+        final String[] result = PostgresArray.fromPostgresArray(pgArray, String.class, Function.identity());
+
+        assertThat(result).containsExactly("one", "two, three", "four; five", null, "say \"Hello\" to me");
+    }
+
+    @Test
+    void shouldCreateUUidArray() {
+        em.createNativeQuery("""            
+            create or replace function returnUuidArray()
+                returns uuid[]
+                stable leakproof
+                language plpgsql as $$
+            declare
+                uuid1 UUID = 'f47ac10b-58cc-4372-a567-0e02b2c3d479';
+                uuid2 UUID = '6ba7b810-9dad-11d1-80b4-00c04fd430c8';
+                uuid3 UUID = '01234567-89ab-cdef-0123-456789abcdef';
+            begin
+                return ARRAY[uuid1, uuid2, null, uuid3];
+            end; $$;
+            """).executeUpdate();
+        final byte[] pgArray = (byte[]) em.createNativeQuery("SELECT returnUuidArray()", UUID[].class).getSingleResult();
+
+        final UUID[] result = PostgresArray.fromPostgresArray(pgArray, UUID.class, UUID::fromString);
+
+        assertThat(result).containsExactly(
+                UUID.fromString("f47ac10b-58cc-4372-a567-0e02b2c3d479"),
+                UUID.fromString("6ba7b810-9dad-11d1-80b4-00c04fd430c8"),
+                null,
+                UUID.fromString("01234567-89ab-cdef-0123-456789abcdef"));
+    }
+}

src/test/java/net/hostsharing/hsadminng/rbac/rbacgrant/RbacGrantControllerAcceptanceTest.java

@@ -26,7 +26,6 @@ import java.util.List;
 import java.util.UUID;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assumptions.assumeThat;
 import static org.hamcrest.CoreMatchers.containsString;
 import static org.hamcrest.CoreMatchers.is;
 import static org.hamcrest.Matchers.*;
@@ -343,7 +342,7 @@ class RbacGrantControllerAcceptanceTest extends ContextBasedTest {
     }
 
     private void assumeCreated(final ValidatableResponse response) {
-        assumeThat(response.extract().response().statusCode()).isEqualTo(201);
+        assertThat(response.extract().response().statusCode()).isEqualTo(201);
     }
 
     class Subject {
@@ -479,7 +478,7 @@ class RbacGrantControllerAcceptanceTest extends ContextBasedTest {
     }
 
     private void assumeGrantExists(final Subject grantingSubject, final String expectedGrant) {
-        assumeThat(findAllGrantsOf(grantingSubject))
+        assertThat(findAllGrantsOf(grantingSubject))
                 .extracting(RbacGrantEntity::toDisplay)
                 .contains(expectedGrant);
     }

src/test/java/net/hostsharing/hsadminng/rbac/rbacgrant/RbacGrantRepositoryIntegrationTest.java

@@ -25,7 +25,6 @@ import java.util.UUID;
 
 import static net.hostsharing.test.JpaAttempt.attempt;
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assumptions.assumeThat;
 
 @DataJpaTest
 @Import( { Context.class, JpaAttempt.class })
@@ -186,9 +185,8 @@ class RbacGrantRepositoryIntegrationTest extends ContextBasedTest {
 
             // when
             context("customer-admin@xxx.example.com", "test_customer#xxx.admin");
-            final var revokeAttempt = attempt(em, () -> {
-                rbacGrantRepository.deleteByRbacGrantId(grant.getRbacGrantId());
-            });
+            final var revokeAttempt = attempt(em, () ->
+                    rbacGrantRepository.deleteByRbacGrantId(grant.getRbacGrantId()));
 
             // then
             context("customer-admin@xxx.example.com", "test_customer#xxx.admin");
@@ -208,9 +206,8 @@ class RbacGrantRepositoryIntegrationTest extends ContextBasedTest {
 
             // when
             context("pac-admin-xxx00@xxx.example.com", "test_package#xxx00.admin");
-            final var revokeAttempt = attempt(em, () -> {
-                rbacGrantRepository.deleteByRbacGrantId(grant.getRbacGrantId());
-            });
+            final var revokeAttempt = attempt(em, () ->
+                    rbacGrantRepository.deleteByRbacGrantId(grant.getRbacGrantId()));
 
             // then
             assertThat(revokeAttempt.caughtExceptionsRootCause()).isNull();
@@ -230,9 +227,8 @@ class RbacGrantRepositoryIntegrationTest extends ContextBasedTest {
 
             // when
             context("pac-admin-xxx00@xxx.example.com", "test_package#xxx00.admin");
-            final var revokeAttempt = attempt(em, () -> {
-                rbacGrantRepository.deleteByRbacGrantId(grant.getRbacGrantId());
-            });
+            final var revokeAttempt = attempt(em, () ->
+                    rbacGrantRepository.deleteByRbacGrantId(grant.getRbacGrantId()));
 
             // then
             revokeAttempt.assertExceptionWithRootCauseMessage(
@@ -255,10 +251,10 @@ class RbacGrantRepositoryIntegrationTest extends ContextBasedTest {
                     rbacGrantRepository.save(grant)
             );
 
-            assumeThat(grantAttempt.caughtException()).isNull();
-            assumeThat(rawRbacGrantRepository.findAll())
+            assertThat(grantAttempt.caughtException()).isNull();
+            assertThat(rawRbacGrantRepository.findAll())
                     .extracting(RawRbacGrantEntity::toDisplay)
-                    .contains("{ grant role %s to user %s by role %s and assume }".formatted(
+                    .contains("{ grant role %s to user %s by %s and assume }".formatted(
                             with.grantedRole, with.granteeUserName, with.assumedRole
                     ));
 

src/test/java/net/hostsharing/hsadminng/rbac/rbacuser/RbacUserRepositoryIntegrationTest.java

@@ -61,11 +61,6 @@ class RbacUserRepositoryIntegrationTest extends ContextBasedTest {
             assertThat(result.returnedValue()).isNotNull()
                     .extracting(RbacUserEntity::getUuid).isEqualTo(givenUuid);
             assertThat(rbacUserRepository.findByName(result.returnedValue().getName())).isNotNull();
-            //        jpaAttempt.transacted(() -> {
-            //            context(givenUser.getName());
-            //            assertThat(em.find(RbacUserEntity.class, givenUser.getUuid()))
-            //                    .isNotNull().extracting(RbacUserEntity::getName).isEqualTo(givenUser.getName());
-            //        }).assertSuccessful();
         }
     }
 
@@ -87,9 +82,6 @@ class RbacUserRepositoryIntegrationTest extends ContextBasedTest {
             // then the user is deleted
             result.assertSuccessful();
             assertThat(rbacUserRepository.findByName(givenUser.getName())).isNull();
-            //        jpaAttempt.transacted(() -> {
-            //            assertThat(rbacUserRepository.findByName(givenUser.getName())).isNull();
-            //        }).assertSuccessful();
         }
     }
 

src/test/java/net/hostsharing/hsadminng/test/cust/TestCustomer.java

@@ -1,6 +1,5 @@
 package net.hostsharing.hsadminng.test.cust;
 
-import static java.util.UUID.randomUUID;
 
 public class TestCustomer {
 

src/test/java/net/hostsharing/hsadminng/test/pac/TestPackageControllerAcceptanceTest.java

@@ -16,7 +16,7 @@ import org.springframework.transaction.annotation.Transactional;
 import java.util.UUID;
 
 import static java.lang.String.format;
-import static org.assertj.core.api.Assumptions.assumeThat;
+import static org.assertj.core.api.Assertions.assertThat;
 import static org.hamcrest.Matchers.equalTo;
 import static org.hamcrest.Matchers.is;
 
@@ -85,7 +85,8 @@ class TestPackageControllerAcceptanceTest {
         @Test
         void withDescriptionUpdatesDescription() {
 
-            assumeThat(getDescriptionOfPackage("xxx00"))
+            assertThat(getDescriptionOfPackage("xxx00"))
+                    .as("precondition failed")
                     .isEqualTo("Here you can add your own description of package xxx00.");
 
             final var randomDescription = RandomStringUtils.randomAlphanumeric(80);
@@ -117,7 +118,8 @@ class TestPackageControllerAcceptanceTest {
         @Test
         void withNullDescriptionUpdatesDescriptionToNull() {
 
-            assumeThat(getDescriptionOfPackage("xxx01"))
+            assertThat(getDescriptionOfPackage("xxx01"))
+                    .as("precondition failed")
                     .isEqualTo("Here you can add your own description of package xxx01.");
 
             // @formatter:off
@@ -146,7 +148,8 @@ class TestPackageControllerAcceptanceTest {
         @Test
         void withoutDescriptionDoesNothing() {
 
-            assumeThat(getDescriptionOfPackage("xxx02"))
+            assertThat(getDescriptionOfPackage("xxx02"))
+                    .as("precondition failed")
                     .isEqualTo("Here you can add your own description of package xxx02.");
 
             // @formatter:off

src/test/java/net/hostsharing/test/JpaAttempt.java

@@ -12,7 +12,6 @@ import java.util.Optional;
 import java.util.function.Supplier;
 
 import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assumptions.assumeThat;
 
 /**
  * Wraps the 'when' part of a DataJpaTest to improve readability of tests.
@@ -138,7 +137,7 @@ public class JpaAttempt {
         }
 
         public JpaResult<T> assumeSuccessful() {
-            assumeThat(exception).as(firstRootCauseMessageLineOf(exception)).isNull();
+            assertThat(exception).as(firstRootCauseMessageLineOf(exception)).isNull();
             return this;
         }