| NPE Generating Entity [message #434581] |
Sat, 08 September 2007 09:52  |
Eclipse User |
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I am getting a NPE when I try an generate an entity for one particular
table. So far all of my other tables have been generated just fine, but it
keeps erroring out on this table. Here is the stack Trace of the error:
eclipse.buildId=I20070323-1616
java.version=1.6.0_02
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
Command-line arguments: -os win32 -ws win32 -arch x86
Error
Sat Sep 08 08:36:24 CDT 2007
Unhandled event loop exception
java.lang.NullPointerException
at
org.eclipse.jpt.db.internal.ForeignKey.getReferencedTable(Fo reignKey.java:104)
at
org.eclipse.jpt.gen.internal.GenTable.addReferencedTablesTo( GenTable.java:106)
at
org.eclipse.jpt.gen.internal.GenScope.buildReferencedTables( GenScope.java:169)
at
org.eclipse.jpt.gen.internal.GenScope.configureManyToManyRel ations(GenScope.java:81)
at org.eclipse.jpt.gen.internal.GenScope.initialize(GenScope.ja va:46)
at org.eclipse.jpt.gen.internal.GenScope.<init>(GenScope.java:33)
at
org.eclipse.jpt.gen.internal.PackageGenerator.<init>(PackageGenerator.java:48)
at
org.eclipse.jpt.gen.internal.PackageGenerator.generateEntiti es(PackageGenerator.java:38)
at
org.eclipse.jpt.ui.internal.generic.EntitiesGenerator$Genera teEntitiesRunnable.run(EntitiesGenerator.java:129)
at org.eclipse.core.internal.resources.Workspace.run(Workspace. java:1797)
at org.eclipse.core.internal.resources.Workspace.run(Workspace. java:1779)
at
org.eclipse.jpt.ui.internal.generic.EntitiesGenerator.genera te(EntitiesGenerator.java:88)
at
org.eclipse.jpt.ui.internal.generic.EntitiesGenerator.genera te(EntitiesGenerator.java:56)
at
org.eclipse.jpt.ui.internal.BaseJpaPlatformUi.generateEntiti es(BaseJpaPlatformUi.java:66)
at
org.eclipse.jpt.ui.internal.actions.GenerateEntitiesAction.e xecute(GenerateEntitiesAction.java:27)
at
org.eclipse.jpt.ui.internal.actions.ProjectAction.execute(Pr ojectAction.java:90)
at
org.eclipse.jpt.ui.internal.actions.ProjectAction.execute(Pr ojectAction.java:71)
at
org.eclipse.jpt.ui.internal.actions.ProjectAction.run(Projec tAction.java:63)
at org.eclipse.ui.internal.PluginAction.runWithEvent(PluginActi on.java:256)
at
org.eclipse.jface.action.ActionContributionItem.handleWidget Selection(ActionContributionItem.java:545)
at
org.eclipse.jface.action.ActionContributionItem.access$2(Act ionContributionItem.java:490)
at
org.eclipse.jface.action.ActionContributionItem$5.handleEven t(ActionContributionItem.java:402)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java :66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:938)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.ja va:3682)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3293)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.jav a:2389)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:22 19)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466)
at
org.eclipse.core.databinding.observable.Realm.runWithDefault (Realm.java:289)
at
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Work bench.java:461)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:149)
at
org.eclipse.ui.internal.ide.application.IDEApplication.start (IDEApplication.java:106)
at
org.eclipse.equinox.internal.app.EclipseAppHandle.run(Eclips eAppHandle.java:153)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher .runApplication(EclipseAppLauncher.java:106)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher .start(EclipseAppLauncher.java:76)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.java:363)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.java:176)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java: 504)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:443)
at org.eclipse.equinox.launcher.Main.run(Main.java:1169)
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| Re: NPE Generating Entity [message #434595 is a reply to message #434591] |
Tue, 18 September 2007 16:56  |
| Eclipse User |
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Based on this information, it might be best for us to try and determine
what the problem is without the test case. If you could, enter a bug with
all of the information you have been able to provide so far, and we will
try to debug the issue without a test case.
Neil
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| Re: NPE Generating Entity [message #605535 is a reply to message #434581] |
Mon, 10 September 2007 15:49 |
| Eclipse User |
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Shawn,
Can you open a bug against Dali for this, and attach a DDL test case so we
can reproduce the error?
We'll take a look at the DDL and see if we can figure out what the problem
is.
Thanks,
Neil
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| Re: NPE Generating Entity [message #606095 is a reply to message #434589] |
Tue, 11 September 2007 12:33 |
| Eclipse User |
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Shawn wrote:
> How much of our DDL do you need? Would you like all the schema we have
> that touches this one table? Our database is rather large, that is why I
> ask.
I would reduce it to the smallest DLL that still reproduces the error, so
I would start very small and see if it can still be reproduced with say 2
tables and constraints. From there you can add in references until the
error reproduces. You can change the names of the tables and columns to
hide that information if you wish. We just need a test case to reproduce
with.
Neil
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| Re: NPE Generating Entity [message #606099 is a reply to message #434590] |
Wed, 12 September 2007 11:23 |
| Eclipse User |
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Will I need to delete tables or remove the foreign key reference to find
out the smallest set of tables that re-creates the issue? The problem is
that our database is very large and this table is the center of the
database. I would say it is referenced by around 900 tables or more. Would
this be enough information? I am afraid to ask our database team to go and
find every table that touches this, beacuse it might take them awhile. Is
there any other information that I could find that might have something to
do with this error like triggers or something like that?
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| Re: NPE Generating Entity [message #606106 is a reply to message #434591] |
Tue, 18 September 2007 16:56 |
| Eclipse User |
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Based on this information, it might be best for us to try and determine
what the problem is without the test case. If you could, enter a bug with
all of the information you have been able to provide so far, and we will
try to debug the issue without a test case.
Neil
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