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Home » Eclipse Projects » WindowBuilder » DesignPage, Exception during constructor evaluation
DesignPage, Exception during constructor evaluation [message #869847] Fri, 04 May 2012 13:48 Go to next message
user Kyle is currently offline user KyleFriend
Messages: 19
Registered: April 2012
Junior Member
Hi,

I have a source code like that:
public class MyApp {
	public MyApp() {
		Panel pan = new Panel();
	}
}


But when I go to the DesignPage, I have an error:
Quote:
Exception during constructor evaluation
An exception happened during evaluation of

new Panel()



I use my own UI Toolkit (not swing or other) and my panel cannot be launch as a Java Application like Swing.
I think it's my problem, how is it possible to change that? (in wb to design a non Java App)

Thanks for your help. Wink

Ps: the stack trace:

Quote:

Stack trace:
org.eclipse.wb.internal.core.utils.exception.DesignerException: 307 (Exception during constructor evaluation). new Panel() Panel() {} java.lang.RuntimeException
at xx.xxx.Panel.<init>(Panel.java:20)
at org.eclipse.wb.internal.core.eval.evaluators.InvocationEvaluator.createConstructorProblemException(InvocationEvaluator.java:593)
at org.eclipse.wb.internal.core.eval.evaluators.InvocationEvaluator.evaluate(InvocationEvaluator.java:268)
at org.eclipse.wb.internal.core.eval.evaluators.InvocationEvaluator.evaluate(InvocationEvaluator.java:81)
at org.eclipse.wb.core.eval.AstEvaluationEngine.evaluate0(AstEvaluationEngine.java:177)
at org.eclipse.wb.core.eval.AstEvaluationEngine.evaluate(AstEvaluationEngine.java:61)
at org.eclipse.wb.internal.core.model.JavaInfoEvaluationHelper.evaluateExpression(JavaInfoEvaluationHelper.java:630)
at org.eclipse.wb.internal.core.model.JavaInfoEvaluationHelper.evaluate(JavaInfoEvaluationHelper.java:502)
at org.eclipse.wb.internal.core.parser.JavaInfoParser.evaluateNode(JavaInfoParser.java:1313)
at org.eclipse.wb.internal.core.parser.JavaInfoParser.access$1(JavaInfoParser.java:1304)
at org.eclipse.wb.internal.core.parser.JavaInfoParser$ExecutionFlowParseVisitor$3.run(JavaInfoParser.java:605)
at org.eclipse.wb.internal.core.utils.execution.ExecutionUtils.runRethrow(ExecutionUtils.java:113)
at org.eclipse.wb.internal.core.parser.JavaInfoParser$ExecutionFlowParseVisitor.postVisit(JavaInfoParser.java:595)
at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.wb.core.eval.ExecutionFlowUtils$1.intercept(ExecutionFlowUtils.java:401)
at org.eclipse.jdt.core.dom.ASTVisitor$$EnhancerByCGLIB$$a9a9e6f.postVisit(<generated>)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2483)
at org.eclipse.jdt.core.dom.ASTNode.acceptChild(ASTNode.java:2528)
at org.eclipse.jdt.core.dom.VariableDeclarationFragment.accept0(VariableDeclarationFragment.java:225)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2480)
at org.eclipse.jdt.core.dom.ASTNode.acceptChildren(ASTNode.java:2551)
at org.eclipse.jdt.core.dom.VariableDeclarationStatement.accept0(VariableDeclarationStatement.java:273)
at org.eclipse.jdt.core.dom.ASTNode.accept(ASTNode.java:2480)
at org.eclipse.wb.core.eval.ExecutionFlowUtils.visitStatement0(ExecutionFlowUtils.java:355)
at org.eclipse.wb.core.eval.ExecutionFlowUtils.visitStatement(ExecutionFlowUtils.java:316)
at org.eclipse.wb.core.eval.ExecutionFlowUtils.visitStatement0(ExecutionFlowUtils.java:337)
at org.eclipse.wb.core.eval.ExecutionFlowUtils.visitStatement(ExecutionFlowUtils.java:316)
at org.eclipse.wb.core.eval.ExecutionFlowUtils.visit(ExecutionFlowUtils.java:248)
at org.eclipse.wb.core.eval.ExecutionFlowUtils.visit(ExecutionFlowUtils.java:229)
at org.eclipse.wb.core.eval.ExecutionFlowUtils.visit(ExecutionFlowUtils.java:192)
at org.eclipse.wb.internal.core.parser.JavaInfoParser.parseRootMethods(JavaInfoParser.java:314)
at org.eclipse.wb.internal.core.parser.JavaInfoParser.parse(JavaInfoParser.java:270)
at org.eclipse.wb.internal.core.parser.JavaInfoParser.access$9(JavaInfoParser.java:240)
at org.eclipse.wb.internal.core.parser.JavaInfoParser$1.runObject(JavaInfoParser.java:153)
at org.eclipse.wb.internal.core.parser.JavaInfoParser$1.runObject(JavaInfoParser.java:1)
at org.eclipse.wb.internal.core.utils.execution.ExecutionUtils.runDesignTime(ExecutionUtils.java:153)
at org.eclipse.wb.internal.core.parser.JavaInfoParser.parse(JavaInfoParser.java:151)
at org.eclipse.wb.internal.core.editor.DesignPage.internal_refreshGEF(DesignPage.java:537)
at org.eclipse.wb.internal.core.editor.DesignPage.access$9(DesignPage.java:525)
at org.eclipse.wb.internal.core.editor.DesignPage$8$1.run(DesignPage.java:452)
at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:179)
at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150)
at org.eclipse.swt.widgets.Display.syncExec(Display.java:4584)
at org.eclipse.wb.internal.core.editor.DesignPage$8.run(DesignPage.java:449)
at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372)
at org.eclipse.jface.dialogs.ProgressMonitorDialog.run(ProgressMonitorDialog.java:507)
at org.eclipse.wb.internal.core.editor.DesignPage.internal_refreshGEF_withProgress(DesignPage.java:468)
at org.eclipse.wb.internal.core.editor.DesignPage.internal_refreshGEF(DesignPage.java:418)
at org.eclipse.wb.internal.core.editor.UndoManager.refreshDesignerEditor(UndoManager.java:381)
at org.eclipse.wb.internal.core.editor.UndoManager.activate(UndoManager.java:90)
at org.eclipse.wb.internal.core.editor.DesignPage.handleActiveState_True(DesignPage.java:266)
at org.eclipse.wb.internal.core.editor.DesignPage.handleActiveState(DesignPage.java:244)
at org.eclipse.wb.internal.core.editor.multi.DefaultMultiMode.showPage(DefaultMultiMode.java:125)
at org.eclipse.wb.internal.core.editor.multi.DefaultMultiMode$1.widgetSelected(DefaultMultiMode.java:63)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:234)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1077)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1062)
at org.eclipse.swt.widgets.Widget.notifyListeners(Widget.java:774)
at org.eclipse.swt.custom.CTabFolder.setSelection(CTabFolder.java:2743)
at org.eclipse.swt.custom.CTabFolder.onMouse(CTabFolder.java:1429)
at org.eclipse.swt.custom.CTabFolder$1.handleEvent(CTabFolder.java:257)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1053)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4066)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3657)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
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:620)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575)
at org.eclipse.equinox.launcher.Main.run(Main.java:1408)

[Updated on: Fri, 04 May 2012 14:07]

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Re: DesignPage, Exception during constructor evaluation [message #869924 is a reply to message #869847] Fri, 04 May 2012 20:13 Go to previous messageGo to next message
Eric Clayberg is currently offline Eric ClaybergFriend
Messages: 979
Registered: July 2009
Location: Boston, MA
Senior Member
As shown in the exception, your problem is here...

xx.xxx.Panel.<init>(Panel.java:20)

You haven't provided a complete test case, so I can't speculate what the problem is with the Panel class.

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Re: DesignPage, Exception during constructor evaluation [message #870642 is a reply to message #869924] Wed, 09 May 2012 07:49 Go to previous messageGo to next message
user Kyle is currently offline user KyleFriend
Messages: 19
Registered: April 2012
Junior Member
Hi Eric Clayberg,

Thanks to your answer.

I know where my program crash where I try to go to design page. But my program work in execution.

It is not a Java Application and I think the parser try to parse my code as a Java Application.
(So there is an exception when it create a new Panel)

I search how to parse a no Java application.

Thanks to your help

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Re: DesignPage, Exception during constructor evaluation [message #870662 is a reply to message #870642] Wed, 09 May 2012 09:28 Go to previous message
user Kyle is currently offline user KyleFriend
Messages: 19
Registered: April 2012
Junior Member
It's OK, I had an error in InvocatorEvaluator in my model.component!

I took Swing code as example to do my tookit in windowBuilder and one method compare my code with a swing method instead of mine. :S

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