Missing inverseJoinColumn at ManyToMany relations with composite keys --------------------------------------------------------------------- Key: HBX-1093 URL: http://opensource.atlassian.com/projects/hibernate/browse/HBX-1093 Project: Hibernate Tools Issue Type: Bug Components: hbm2java Affects Versions: 3.2.2, 3.2LATER Environment: Hibernate Tools version 3.2.2.Beta1 and 3.2.4.CR1-N200810300202, Oracle Database Reporter: Nils Kelleter Using the hbm2java tool for reverse engineering of database tables, the following problem exists: At ManyToMany relations with composite keys an inverseJoinColumn is missing. Wrong code: @ManyToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY) @JoinTable(name = "ET_MANY_TO_MANY_COMP_MAPPING", joinColumns = { @JoinColumn(name = "FK_ET_MANY_TO_MANY_COMP1_ID", nullable = false, updatable = false), @JoinColumn(name = "FK_ET_MANY_TO_MANY_COMP11_ID", nullable = false, updatable = false) }, inverseJoinColumns = { @JoinColumn(name = "FK_ET_MANY_TO_MANY_COMP2_ID", nullable = false, updatable = false) }) public Set<EtManyToManyComp2> getEtManyToManyComp2s() { return this.etManyToManyComp2s; } @ManyToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY) @JoinTable(name = "ET_MANY_TO_MANY_COMP_MAPPING", joinColumns = { @JoinColumn(name = "FK_ET_MANY_TO_MANY_COMP2_ID", nullable = false, updatable = false), @JoinColumn(name = "FK_ET_MANY_TO_MANY_COMP22_ID", nullable = false, updatable = false) }, inverseJoinColumns = { @JoinColumn(name = "FK_ET_MANY_TO_MANY_COMP1_ID", nullable = false, updatable = false) }) public Set<EtManyToManyComp1> getEtManyToManyComp1s() { return this.etManyToManyComp1s; } Correct code: @ManyToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY) @JoinTable(name = "ET_MANY_TO_MANY_COMP_MAPPING", joinColumns = { @JoinColumn(name = "FK_ET_MANY_TO_MANY_COMP1_ID", nullable = false, updatable = false), @JoinColumn(name = "FK_ET_MANY_TO_MANY_COMP11_ID", nullable = false, updatable = false) }, inverseJoinColumns = { @JoinColumn(name = "FK_ET_MANY_TO_MANY_COMP2_ID", nullable = false, updatable = false), @JoinColumn(name = "FK_ET_MANY_TO_MANY_COMP22_ID", nullable = false, updatable = false) }) public Set<EtManyToManyComp2> getEtManyToManyComp2s() { return this.etManyToManyComp2s; } @ManyToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY) @JoinTable(name = "ET_MANY_TO_MANY_COMP_MAPPING", joinColumns = { @JoinColumn(name = "FK_ET_MANY_TO_MANY_COMP2_ID", nullable = false, updatable = false), @JoinColumn(name = "FK_ET_MANY_TO_MANY_COMP22_ID", nullable = false, updatable = false) }, inverseJoinColumns = { @JoinColumn(name = "FK_ET_MANY_TO_MANY_COMP1_ID", nullable = false, updatable = false), @JoinColumn(name = "FK_ET_MANY_TO_MANY_COMP11_ID", nullable = false, updatable = false) }) public Set<EtManyToManyComp1> getEtManyToManyComp1s() { return this.etManyToManyComp1s; } For reproducing this, you can use the following Oracle SQL scripts: CREATE TABLE ET_MANY_TO_MANY_COMP1 ( ET_MANY_TO_MANY_COMP1_ID NUMBER, ET_MANY_TO_MANY_COMP11_ID NUMBER, FIELD VARCHAR2(10), PRIMARY KEY (ET_MANY_TO_MANY_COMP1_ID, ET_MANY_TO_MANY_COMP11_ID) ); CREATE TABLE ET_MANY_TO_MANY_COMP2 ( ET_MANY_TO_MANY_COMP2_ID NUMBER, ET_MANY_TO_MANY_COMP22_ID NUMBER, FIELD VARCHAR2(10), PRIMARY KEY (ET_MANY_TO_MANY_COMP2_ID, ET_MANY_TO_MANY_COMP22_ID) ); CREATE TABLE ET_MANY_TO_MANY_COMP_MAPPING ( FK_ET_MANY_TO_MANY_COMP1_ID NUMBER, FK_ET_MANY_TO_MANY_COMP11_ID NUMBER, FK_ET_MANY_TO_MANY_COMP2_ID NUMBER, FK_ET_MANY_TO_MANY_COMP22_ID NUMBER, FOREIGN KEY (FK_ET_MANY_TO_MANY_COMP1_ID,FK_ET_MANY_TO_MANY_COMP11_ID) REFERENCES ET_MANY_TO_MANY_COMP1(ET_MANY_TO_MANY_COMP1_ID,ET_MANY_TO_MANY_COMP11_ID), FOREIGN KEY (FK_ET_MANY_TO_MANY_COMP2_ID, FK_ET_MANY_TO_MANY_COMP22_ID) REFERENCES ET_MANY_TO_MANY_COMP2(ET_MANY_TO_MANY_COMP2_ID, ET_MANY_TO_MANY_COMP22_ID), PRIMARY KEY (FK_ET_MANY_TO_MANY_COMP1_ID,FK_ET_MANY_TO_MANY_COMP11_ID,FK_ET_MANY_TO_MANY_COMP2_ID,FK_ET_MANY_TO_MANY_COMP22_ID) ); -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira