[Dr.Drane]

Hello,

I get an error while reverse engineering a table:

(project: hibernate with annotations + spring capabilities)

Error message:

An internal error occurred during: “Generating Artifacts”.
java.lang.NullPointerException

DDL of the table:

create table `musickmind`.`user`(
`uid` INT not null,
`username` VARCHAR(30) not null,
`password` VARCHAR(30) not null,
`creation_date` TIMESTAMP,
`modified_date` TIMESTAMP default ‘0000-00-00 00:00:00’ not null,
`approved` ENUM(10) not null
);

create unique index `uid` on `musickmind`.`user`(`uid`);

Logs:

!ENTRY org.eclipse.core.jobs 4 2 2008-07-10 00:05:51.218
!MESSAGE An internal error occurred during: “Generating Artifacts”.
!STACK 0
java.lang.NullPointerException
at org.hibernate.mapping.ForeignKey.alignColumns(ForeignKey.java:77)
at org.hibernate.mapping.ForeignKey.alignColumns(ForeignKey.java:73)
at org.hibernate.cfg.Configuration.secondPassCompileForeignKeys(Configuration.java:1263)
at org.hibernate.cfg.JDBCMetaDataConfiguration.secondPassCompileForeignKeys(JDBCMetaDataConfiguration.java:33)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1170)
at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1115)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob$7.execute(GenerateArtifactsJob.java:878)
at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:65)
at org.hibernate.console.ConsoleConfiguration.execute(ConsoleConfiguration.java:91)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob.buildConfiguration(GenerateArtifactsJob.java:858)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob.run(GenerateArtifactsJob.java:405)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

Any ideas on how I might be able to solve this?

Thank you and have a nice day,

Jochen

[Dr.Drane]

I restarted myeclipse and tried again.
Now the error logs gave a little bit more info:

!SESSION 2008-07-10 00:11:12.578 ———————————————–
eclipse.buildId=M20080221-1800
java.version=1.5.0_11
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_BE
Command-line arguments: -os win32 -ws win32 -arch x86 -clean

!ENTRY org.eclipse.update.configurator 2008-07-10 00:11:16.687
!MESSAGE Could not install bundle ../myeclipse/eclipse/plugins/com.ibm.icu_3.6.1.v20070906.jar Bundle “com.ibm.icu” version “3.6.1.v20070906” has already been installed from: update@plugins/com.ibm.icu_3.6.1.v20070906.jar

!ENTRY org.eclipse.update.configurator 2008-07-10 00:11:16.703
!MESSAGE Could not install bundle ../myeclipse/eclipse/plugins/javax.servlet.jsp_2.0.0.v200706191603.jar Bundle “javax.servlet.jsp” version “2.0.0.v200706191603” has already been installed from: update@plugins/javax.servlet.jsp_2.0.0.v200706191603.jar

!ENTRY org.eclipse.update.configurator 2008-07-10 00:11:16.703
!MESSAGE Could not install bundle ../myeclipse/eclipse/plugins/javax.servlet_2.4.0.v200706111738.jar Bundle “javax.servlet” version “2.4.0.v200706111738” has already been installed from: update@plugins/javax.servlet_2.4.0.v200706111738.jar

!ENTRY org.eclipse.update.configurator 2008-07-10 00:11:16.750
!MESSAGE Could not install bundle ../myeclipse/eclipse/plugins/org.apache.commons.el_1.0.0.v200706111724.jar Bundle “org.apache.commons.el” version “1.0.0.v200706111724” has already been installed from: update@plugins/org.apache.commons.el_1.0.0.v200706111724.jar

!ENTRY org.eclipse.core.jobs 4 2 2008-07-10 00:11:59.437
!MESSAGE An internal error occurred during: “Generating Artifacts”.
!STACK 0
java.lang.NullPointerException
at org.hibernate.mapping.ForeignKey.alignColumns(ForeignKey.java:77)
at org.hibernate.mapping.ForeignKey.alignColumns(ForeignKey.java:73)
at org.hibernate.cfg.Configuration.secondPassCompileForeignKeys(Configuration.java:1263)
at org.hibernate.cfg.JDBCMetaDataConfiguration.secondPassCompileForeignKeys(JDBCMetaDataConfiguration.java:33)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1170)
at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1115)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob$7.execute(GenerateArtifactsJob.java:878)
at org.hibernate.console.execution.DefaultExecutionContext.execute(DefaultExecutionContext.java:65)
at org.hibernate.console.ConsoleConfiguration.execute(ConsoleConfiguration.java:91)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob.buildConfiguration(GenerateArtifactsJob.java:858)
at com.genuitec.eclipse.hibernate.wizards.GenerateArtifactsJob.run(GenerateArtifactsJob.java:405)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

[Dr.Drane]

Reinstalling MyEclipse and trying a clean workspace also didn’t help by the way.

Greets

[Dr.Drane]

My primary keys were unique values. Changed them to primary and problem is solved.

greets

[Author]

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