diff --git a/hsarback/src/de/hsadmin/mods/pac/BasePac.java b/hsarback/src/de/hsadmin/mods/pac/BasePac.java
index 8a1ded1..457c6e3 100644
--- a/hsarback/src/de/hsadmin/mods/pac/BasePac.java
+++ b/hsarback/src/de/hsadmin/mods/pac/BasePac.java
@@ -12,8 +12,6 @@ import javax.persistence.Entity;
 import javax.persistence.FetchType;
 import javax.persistence.GeneratedValue;
 import javax.persistence.Id;
-import javax.persistence.JoinColumn;
-import javax.persistence.JoinTable;
 import javax.persistence.OneToMany;
 import javax.persistence.SequenceGenerator;
 import javax.persistence.Table;
@@ -49,14 +47,9 @@ public class BasePac implements Serializable {
 	@Column(name = "valid", columnDefinition = "boolean")
 	private boolean valid;
 
-	@OneToMany(fetch = FetchType.LAZY, cascade = ALL)
-	@JoinTable(name = "component", joinColumns = @JoinColumn(name = "basepacket_id"), inverseJoinColumns = @JoinColumn(name = "basecomponent_id"))
+	@OneToMany(fetch = FetchType.LAZY, cascade=ALL, mappedBy="basePac")
 	private Set<Component> components;
 
-	@OneToMany(fetch = FetchType.LAZY, cascade = ALL)
-	@JoinTable(name = "packet_component", joinColumns = @JoinColumn(name = "packet_id"), inverseJoinColumns = @JoinColumn(name = "basepacket_id"))
-	private Set<Pac> pacs;
-
 	public long id() {
 		return basePacId;
 	}
@@ -125,14 +118,6 @@ public class BasePac implements Serializable {
 		getComponents().remove(comp);
 	}
 
-	public Set<Pac> getPacs() {
-		return pacs;
-	}
-
-	public void setPacs(Set<Pac> pacs) {
-		this.pacs = pacs;
-	}
-
 	// generic
 	public boolean equals(Object aOther) {
 		if (aOther == null || aOther.getClass() != getClass())