SWT Designer Pro (version 5.0.0) on Eclipse 3.1.2

[dandm]

Quite often, with the new 5.0 release of SWT Designer, I start out to create a new JFace Dialog from the wizard and generated file is empty.

Sometimes it generates content and when I go to open the file, it tells me that the file has changed on disc -- and then prompts me to reload it. When I do and open the file for editing in the Designer Editor, the editor that opens has a tab with Design Editor (or something like it) on it, but the Source and Design tabs are not there and then entire edit area is empty with the widget default background. If I restart Eclipse and open the file, the Design Editor appears correctly.

This happens almost 100% of the time that I first invoke SWT-Designer with the wizard after starting Eclipse.

[Eric Clayberg]

This happens almost 100% of the time that I first invoke SWT-Designer with the wizard after starting Eclipse.

I have never seen this happen.

Anything in your log? Does it happen for any other wizards?

Does this still happen if you install Designer into a fresh Eclipse installation?

[dandm]

Here's what I see in the .log file:

!ENTRY org.eclipse.osgi 2006-06-28 07:03:20.615
!MESSAGE An error occurred while automatically activating bundle com.swtdesigner (107).
!STACK 0
org.osgi.framework.BundleException: Exception in com.swtdesigner.DesignerPlugin.start() of bundle com.swtdesigner.
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:1013)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:969)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:316)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:264)
at org.eclipse.core.runtime.adaptor.EclipseClassLoader.findLocalClass(EclipseClassLoader.java:116)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:337)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:389)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:350)
at org.eclipse.osgi.framework.adaptor.core.AbstractClassLoader.loadClass(AbstractClassLoader.java:78)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.eclipse.osgi.framework.internal.core.BundleLoader.loadClass(BundleLoader.java:275)
at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:227)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1248)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:152)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:142)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:129)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:48)
at org.eclipse.core.internal.content.ContentType.getDescriber(ContentType.java:272)
at org.eclipse.core.internal.content.ContentTypeCatalog.collectMatchingByContents(ContentTypeCatalog.java:185)
at org.eclipse.core.internal.content.ContentTypeCatalog.internalFindContentTypesFor(ContentTypeCatalog.java:358)
at org.eclipse.core.internal.content.ContentTypeCatalog.internalFindContentTypesFor(ContentTypeCatalog.java:393)
at org.eclipse.core.internal.content.ContentTypeCatalog.getDescriptionFor(ContentTypeCatalog.java:302)
at org.eclipse.core.internal.content.ContentTypeCatalog.getDescriptionFor(ContentTypeCatalog.java:316)
at org.eclipse.core.internal.content.ContentTypeMatcher.getDescriptionFor(ContentTypeMatcher.java:87)
at org.eclipse.core.internal.resources.ContentDescriptionManager.readDescription(ContentDescriptionManager.java:394)
at org.eclipse.core.internal.resources.ContentDescriptionManager.getDescriptionFor(ContentDescriptionManager.java:303)
at org.eclipse.core.internal.resources.File.internalGetCharset(File.java:257)
at org.eclipse.core.internal.resources.File.getCharset(File.java:218)
at org.eclipse.core.internal.resources.File.getCharset(File.java:205)
at org.eclipse.jdt.internal.core.util.Util.getResourceContentsAsCharArray(Util.java:1021)
at org.eclipse.jdt.internal.core.CompilationUnit.openBuffer(CompilationUnit.java:1014)
at org.eclipse.jdt.internal.core.CompilationUnit.buildStructure(CompilationUnit.java:104)
at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:233)
at org.eclipse.jdt.internal.core.SourceRefElement.generateInfos(SourceRefElement.java:114)
at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:488)
at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:232)
at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:218)
at org.eclipse.jdt.internal.core.SearchableEnvironment.find(SearchableEnvironment.java:120)
at org.eclipse.jdt.internal.core.SearchableEnvironment.findType(SearchableEnvironment.java:188)
at org.eclipse.jdt.internal.core.CancelableNameEnvironment.findType(CancelableNameEnvironment.java:45)
at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:119)
at org.eclipse.jdt.internal.compiler.lookup.PackageBinding.getTypeOrPackage(PackageBinding.java:178)
at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.findImport(CompilationUnitScope.java:415)
at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.findSingleImport(CompilationUnitScope.java:469)
at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.faultInImports(CompilationUnitScope.java:333)
at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.faultInTypes(CompilationUnitScope.java:402)
at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:561)
at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:607)
at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:165)
at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:214)
at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation(ReconcileWorkingCopyOperation.java:79)
at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:718)
at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:777)
at org.eclipse.jdt.internal.core.CompilationUnit.reconcile(CompilationUnit.java:1081)
at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy$1.run(JavaReconcilingStrategy.java:98)
at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1044)
at org.eclipse.core.runtime.Platform.run(Platform.java:783)
at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:82)
at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.initialReconcile(JavaReconcilingStrategy.java:174)
at org.eclipse.jdt.internal.ui.text.CompositeReconcilingStrategy.initialReconcile(CompositeReconcilingStrategy.java:114)
at org.eclipse.jdt.internal.ui.text.JavaCompositeReconcilingStrategy.initialReconcile(JavaCompositeReconcilingStrategy.java:120)
at org.eclipse.jface.text.reconciler.MonoReconciler.initialProcess(MonoReconciler.java:103)
at org.eclipse.jdt.internal.ui.text.JavaReconciler.initialProcess(JavaReconciler.java:328)
at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:170)
Caused by: java.lang.NullPointerException
at com.swtdesigner.DesignerPlugin.start(DesignerPlugin.java:230)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:994)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:988)
... 63 more
Root exception:
java.lang.NullPointerException
at com.swtdesigner.DesignerPlugin.start(DesignerPlugin.java:230)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$2.run(BundleContextImpl.java:994)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:988)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:969)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:316)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.start(AbstractBundle.java:264)
at org.eclipse.core.runtime.adaptor.EclipseClassLoader.findLocalClass(EclipseClassLoader.java:116)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findLocalClass(BundleLoader.java:337)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:389)
at org.eclipse.osgi.framework.internal.core.BundleLoader.findClass(BundleLoader.java:350)
at org.eclipse.osgi.framework.adaptor.core.AbstractClassLoader.loadClass(AbstractClassLoader.java:78)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.eclipse.osgi.framework.internal.core.BundleLoader.loadClass(BundleLoader.java:275)
at org.eclipse.osgi.framework.internal.core.BundleHost.loadClass(BundleHost.java:227)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.loadClass(AbstractBundle.java:1248)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:152)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:142)
at org.eclipse.core.internal.registry.ConfigurationElement.createExecutableExtension(ConfigurationElement.java:129)
at org.eclipse.core.internal.registry.ConfigurationElementHandle.createExecutableExtension(ConfigurationElementHandle.java:48)
at org.eclipse.core.internal.content.ContentType.getDescriber(ContentType.java:272)
at org.eclipse.core.internal.content.ContentTypeCatalog.collectMatchingByContents(ContentTypeCatalog.java:185)
at org.eclipse.core.internal.content.ContentTypeCatalog.internalFindContentTypesFor(ContentTypeCatalog.java:358)
at org.eclipse.core.internal.content.ContentTypeCatalog.internalFindContentTypesFor(ContentTypeCatalog.java:393)
at org.eclipse.core.internal.content.ContentTypeCatalog.getDescriptionFor(ContentTypeCatalog.java:302)
at org.eclipse.core.internal.content.ContentTypeCatalog.getDescriptionFor(ContentTypeCatalog.java:316)
at org.eclipse.core.internal.content.ContentTypeMatcher.getDescriptionFor(ContentTypeMatcher.java:87)
at org.eclipse.core.internal.resources.ContentDescriptionManager.readDescription(ContentDescriptionManager.java:394)
at org.eclipse.core.internal.resources.ContentDescriptionManager.getDescriptionFor(ContentDescriptionManager.java:303)
at org.eclipse.core.internal.resources.File.internalGetCharset(File.java:257)
at org.eclipse.core.internal.resources.File.getCharset(File.java:218)
at org.eclipse.core.internal.resources.File.getCharset(File.java:205)
at org.eclipse.jdt.internal.core.util.Util.getResourceContentsAsCharArray(Util.java:1021)
at org.eclipse.jdt.internal.core.CompilationUnit.openBuffer(CompilationUnit.java:1014)
at org.eclipse.jdt.internal.core.CompilationUnit.buildStructure(CompilationUnit.java:104)
at org.eclipse.jdt.internal.core.Openable.generateInfos(Openable.java:233)
at org.eclipse.jdt.internal.core.SourceRefElement.generateInfos(SourceRefElement.java:114)
at org.eclipse.jdt.internal.core.JavaElement.openWhenClosed(JavaElement.java:488)
at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:232)
at org.eclipse.jdt.internal.core.JavaElement.getElementInfo(JavaElement.java:218)
at org.eclipse.jdt.internal.core.SearchableEnvironment.find(SearchableEnvironment.java:120)
at org.eclipse.jdt.internal.core.SearchableEnvironment.findType(SearchableEnvironment.java:188)
at org.eclipse.jdt.internal.core.CancelableNameEnvironment.findType(CancelableNameEnvironment.java:45)
at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:119)
at org.eclipse.jdt.internal.compiler.lookup.PackageBinding.getTypeOrPackage(PackageBinding.java:178)
at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.findImport(CompilationUnitScope.java:415)
at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.findSingleImport(CompilationUnitScope.java:469)
at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.faultInImports(CompilationUnitScope.java:333)
at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.faultInTypes(CompilationUnitScope.java:402)
at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:561)
at org.eclipse.jdt.internal.compiler.Compiler.resolve(Compiler.java:607)
at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:165)
at org.eclipse.jdt.internal.core.CompilationUnitProblemFinder.process(CompilationUnitProblemFinder.java:214)
at org.eclipse.jdt.internal.core.ReconcileWorkingCopyOperation.executeOperation(ReconcileWorkingCopyOperation.java:79)
at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:718)
at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:777)
at org.eclipse.jdt.internal.core.CompilationUnit.reconcile(CompilationUnit.java:1081)
at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy$1.run(JavaReconcilingStrategy.java:98)
at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1044)
at org.eclipse.core.runtime.Platform.run(Platform.java:783)
at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.reconcile(JavaReconcilingStrategy.java:82)
at org.eclipse.jdt.internal.ui.text.java.JavaReconcilingStrategy.initialReconcile(JavaReconcilingStrategy.java:174)
at org.eclipse.jdt.internal.ui.text.CompositeReconcilingStrategy.initialReconcile(CompositeReconcilingStrategy.java:114)
at org.eclipse.jdt.internal.ui.text.JavaCompositeReconcilingStrategy.initialReconcile(JavaCompositeReconcilingStrategy.java:120)
at org.eclipse.jface.text.reconciler.MonoReconciler.initialProcess(MonoReconciler.java:103)
at org.eclipse.jdt.internal.ui.text.JavaReconciler.initialProcess(JavaReconciler.java:328)
at org.eclipse.jface.text.reconciler.AbstractReconciler$BackgroundThread.run(AbstractReconciler.java:170)

!ENTRY org.eclipse.core.runtime 4 0 2006-06-28 07:03:20.646
!MESSAGE Could not create content describer for com.swtdesigner.javaSourceGUI. Content type has been disabled.

[Eric Clayberg]

That doesn't seem to have anything to do with your original report, but it does indicate that you might have a problem with your Eclipse installation.

I would suggest cleaning your Eclipse "configuration" directory (see the Designer installation intsructions). If that does not work, try a clean installation of Eclipse 3.1.2 or the newer 3.2 release.