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etienne
 Post subject: Nullpointer exception when creating a sessionFactory in HQL
PostPosted: Thu Aug 04, 2005 1:06 pm 
Senior
Senior

Joined: Tue Jan 11, 2005 5:03 pm
Posts: 137
Location: Montreal, Quebec
Hi,

I am trying to initialise the Hibernate Configuration View in Eclipse 3.1 with the Hibernate Tools alpha4. I get a "Unhandled event loop exception" and a "CodeGenerationException" when trying to connect to the database (with the SessionFactory connection).

On 4 database tables (Pojo or node), it only show the first one without any parameters. It seems that there is a problem when creating the children of the node.

What could i do to start debugging the problem?

Thanks.


Code:
net.sf.cglib.core.CodeGenerationException: java.lang.NullPointerException-->null
   at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:235)
   at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:220)
   at net.sf.cglib.proxy.Enhancer.createUsingReflection(Enhancer.java:564)
   at net.sf.cglib.proxy.Enhancer.firstInstance(Enhancer.java:493)
   at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:220)
   at net.sf.cglib.proxy.Enhancer.createHelper(Enhancer.java:368)
   at net.sf.cglib.proxy.Enhancer.create(Enhancer.java:299)
   at org.hibernate.console.node.NodeFactory.createIdentifierNode(NodeFactory.java:164)
   at org.hibernate.console.node.ClassNode.createChildren(ClassNode.java:61)
   at org.hibernate.console.node.ClassNode$$EnhancerByCGLIB$$9b34d09b.CGLIB$createChildren$0$1(<generated>)
   at org.hibernate.console.node.ClassNode$$EnhancerByCGLIB$$9b34d09b$$FastClassByCGLIB$$ee891afa.invoke(<generated>)
   at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:167)
   at org.hibernate.console.node.NodeFactory$1.intercept(NodeFactory.java:47)
   at org.hibernate.console.node.ClassNode$$EnhancerByCGLIB$$9b34d09b.createChildren(<generated>)
   at org.hibernate.console.node.ClassNode.checkChildren(ClassNode.java:46)
   at org.hibernate.console.node.ClassNode$$EnhancerByCGLIB$$9b34d09b.CGLIB$checkChildren$0$2(<generated>)
   at org.hibernate.console.node.ClassNode$$EnhancerByCGLIB$$9b34d09b$$FastClassByCGLIB$$ee891afa.invoke(<generated>)
   at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:167)
   at org.hibernate.console.node.NodeFactory$1.intercept(NodeFactory.java:47)
   at org.hibernate.console.node.ClassNode$$EnhancerByCGLIB$$9b34d09b.checkChildren(<generated>)
   at org.hibernate.console.node.BaseNode.isLeaf(BaseNode.java:71)
   at org.hibernate.console.node.ClassNode$$EnhancerByCGLIB$$9b34d09b.CGLIB$isLeaf$0$16(<generated>)
   at org.hibernate.console.node.ClassNode$$EnhancerByCGLIB$$9b34d09b$$FastClassByCGLIB$$ee891afa.invoke(<generated>)
   at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:167)
   at org.hibernate.console.node.NodeFactory$1.intercept(NodeFactory.java:47)
   at org.hibernate.console.node.ClassNode$$EnhancerByCGLIB$$9b34d09b.isLeaf(<generated>)
   at org.hibernate.eclipse.console.views.TreeNodeContentProvider.hasChildren(TreeNodeContentProvider.java:34)
   at org.eclipse.jface.viewers.AbstractTreeViewer.isExpandable(AbstractTreeViewer.java:1369)
   at org.eclipse.jface.viewers.AbstractTreeViewer.updatePlus(AbstractTreeViewer.java:1831)
   at org.eclipse.jface.viewers.AbstractTreeViewer.createTreeItem(AbstractTreeViewer.java:536)
   at org.eclipse.jface.viewers.AbstractTreeViewer$1.run(AbstractTreeViewer.java:514)
   at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:69)
   at org.eclipse.jface.viewers.AbstractTreeViewer.createChildren(AbstractTreeViewer.java:494)
   at org.eclipse.jface.viewers.AbstractTreeViewer.handleTreeExpand(AbstractTreeViewer.java:948)
   at org.eclipse.jface.viewers.AbstractTreeViewer$4.treeExpanded(AbstractTreeViewer.java:959)
   at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:179)
   at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82)
   at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:842)
   at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:866)
   at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:851)
   at org.eclipse.swt.widgets.Tree.wmNotifyChild(Tree.java:3659)
   at org.eclipse.swt.widgets.Control.WM_NOTIFY(Control.java:3567)
   at org.eclipse.swt.widgets.Composite.WM_NOTIFY(Composite.java:1035)
   at org.eclipse.swt.widgets.Control.windowProc(Control.java:3089)
   at org.eclipse.swt.widgets.Display.windowProc(Display.java:3513)
   at org.eclipse.swt.internal.win32.OS.CallWindowProcW(Native Method)
   at org.eclipse.swt.internal.win32.OS.CallWindowProc(OS.java:1574)
   at org.eclipse.swt.widgets.Tree.callWindowProc(Tree.java:219)
   at org.eclipse.swt.widgets.Tree.WM_LBUTTONDOWN(Tree.java:2790)
   at org.eclipse.swt.widgets.Control.windowProc(Control.java:3071)
   at org.eclipse.swt.widgets.Tree.windowProc(Tree.java:2366)
   at org.eclipse.swt.widgets.Display.windowProc(Display.java:3513)
   at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
   at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:1650)
   at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2552)
   at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1601)
   at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1565)
   at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:315)
   at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
   at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103)
   at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:230)
   at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:371)
   at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:160)
   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.core.launcher.Main.invokeFramework(Main.java:330)
   at org.eclipse.core.launcher.Main.basicRun(Main.java:274)
   at org.eclipse.core.launcher.Main.run(Main.java:977)
   at org.eclipse.core.launcher.Main.main(Main.java:952)
Caused by: java.lang.NullPointerException
   at org.hibernate.console.node.NodeFactory.getMetaData(NodeFactory.java:129)
   at org.hibernate.console.node.IdentifierNode.<init>(IdentifierNode.java:24)
   at org.hibernate.console.node.IdentifierNode$$EnhancerByCGLIB$$aab279ba.<init>(<generated>)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
   at java.lang.reflect.Constructor.newInstance(Unknown Source)
   at net.sf.cglib.core.ReflectUtils.newInstance(ReflectUtils.java:228)
   ... 70 more
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etienne
 Post subject:
PostPosted: Thu Aug 04, 2005 1:17 pm 
Senior
Senior

Joined: Tue Jan 11, 2005 5:03 pm
Posts: 137
Location: Montreal, Quebec
Another problem I have is if I try to correct the problem mention above by putting a tag not-found="ignore" in the <many-to-one> tag, I get a org.xml.sax.SAXParseException: Attribute "not-found" is not declared for element "many-to-one" exception!


I am using Hibernate 3.0.5 with all required lib!

Code:
org.xml.sax.SAXParseException: Attribute "not-found" is not declared for element "many-to-one".
   at org.apache.crimson.parser.Parser2.error(Unknown Source)
   at org.apache.crimson.parser.Parser2.maybeElement(Unknown Source)
   at org.apache.crimson.parser.Parser2.content(Unknown Source)
   at org.apache.crimson.parser.Parser2.maybeElement(Unknown Source)
   at org.apache.crimson.parser.Parser2.content(Unknown Source)
   at org.apache.crimson.parser.Parser2.maybeElement(Unknown Source)
   at org.apache.crimson.parser.Parser2.parseInternal(Unknown Source)
   at org.apache.crimson.parser.Parser2.parse(Unknown Source)
   at org.apache.crimson.parser.XMLReaderImpl.parse(Unknown Source)
   at org.dom4j.io.SAXReader.read(SAXReader.java:334)
   at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:393)
   at org.hibernate.cfg.Configuration.addResource(Configuration.java:444)
   at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1392)
   at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1364)
   at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1346)
   at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1313)
   at org.hibernate.cfg.Configuration.configure(Configuration.java:1275)
   at org.hibernate.console.ConsoleConfiguration.buildWith(ConsoleConfiguration.java:152)
   at org.hibernate.console.ConsoleConfiguration.build(ConsoleConfiguration.java:129)
   at org.hibernate.eclipse.console.actions.BuildSessionFactoryAction.doRun(BuildSessionFactoryAction.java:50)
   at org.hibernate.eclipse.console.actions.ConsoleConfigurationBasedAction.run(ConsoleConfigurationBasedAction.java:47)
   at org.eclipse.ui.actions.BaseSelectionListenerAction.runWithEvent(BaseSelectionListenerAction.java:167)
   at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:538)
   at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:488)
   at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:400)
   at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:82)
   at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:842)
   at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2921)
   at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2554)
   at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1601)
   at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1565)
   at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:315)
   at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:143)
   at org.eclipse.ui.internal.ide.IDEApplication.run(IDEApplication.java:103)
   at org.eclipse.core.internal.runtime.PlatformActivator$1.run(PlatformActivator.java:230)
   at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:371)
   at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:160)
   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.core.launcher.Main.invokeFramework(Main.java:330)
   at org.eclipse.core.launcher.Main.basicRun(Main.java:274)
   at org.eclipse.core.launcher.Main.run(Main.java:977)
   at org.eclipse.core.launcher.Main.main(Main.java:952)
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max
 Post subject:
PostPosted: Thu Aug 04, 2005 6:30 pm 
Hibernate Team
Hibernate Team

Joined: Tue Aug 26, 2003 6:10 am
Posts: 8615
Location: Neuchatel, Switzerland (Danish)
submit a runnable test case to jira on it.

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