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Rafael knows the details. I was running a build and generated a new script in the meantime. When the build script was about to be opened by the editor, the file had been deleted by the running build leaving the resource tree in an inconsistent state, which then caused this problem. java.io.FileNotFoundException: d:\tmp\97945\org.eclipse.core.tools\build.xml (The system cannot find the file specified) at java.io.FileInputStream.open(Native Method) at java.io.FileInputStream.<init>(FileInputStream.java:106) at org.eclipse.core.internal.resources.ContentDescriptionManager$LazyFileInputStream.ensureOpened(ContentDescriptionManager.java:151) at org.eclipse.core.internal.resources.ContentDescriptionManager$LazyFileInputStream.read(ContentDescriptionManager.java:160) at java.io.InputStream.read(InputStream.java:89) at org.eclipse.core.internal.content.LazyInputStream.loadBlock(LazyInputStream.java:99) at org.eclipse.core.internal.content.LazyInputStream.ensureAvailable(LazyInputStream.java:64) at org.eclipse.core.internal.content.LazyInputStream.read(LazyInputStream.java:119) at org.eclipse.core.internal.content.TextContentDescriber.getByteOrderMark(TextContentDescriber.java:65) at org.eclipse.core.internal.content.XMLContentDescriber.describe(XMLContentDescriber.java:35) at org.eclipse.ant.internal.core.contentDescriber.AntBuildfileContentDescriber.describe(AntBuildfileContentDescriber.java:87) at org.eclipse.core.internal.content.ContentType.describe(ContentType.java:162) at org.eclipse.core.internal.content.ContentTypeCatalog.collectMatchingByContents(ContentTypeCatalog.java:188) at org.eclipse.core.internal.content.ContentTypeCatalog.internalFindContentTypesFor(ContentTypeCatalog.java:356) 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:333) at org.eclipse.core.internal.resources.File.getContentDescription(File.java:276) at org.eclipse.ui.ide.IDE.getContentType(IDE.java:960) at org.eclipse.ui.ide.IDE.getDefaultEditor(IDE.java:910) at org.eclipse.ui.ide.IDE.getEditorDescriptor(IDE.java:538) at org.eclipse.ui.ide.IDE.openEditor(IDE.java:370) at org.eclipse.ui.ide.IDE.openEditor(IDE.java:334) at org.eclipse.ui.actions.OpenFileAction.openFile(OpenFileAction.java:98) at org.eclipse.ui.actions.OpenSystemEditorAction.run(OpenSystemEditorAction.java:98) at org.eclipse.ui.views.navigator.OpenActionGroup.runDefaultAction(OpenActionGroup.java:120) at org.eclipse.ui.views.navigator.MainActionGroup.runDefaultAction(MainActionGroup.java:326) at org.eclipse.ui.views.navigator.ResourceNavigator.handleOpen(ResourceNavigator.java:650) at org.eclipse.ui.views.navigator.ResourceNavigator$6.open(ResourceNavigator.java:409) at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:741) at org.eclipse.core.internal.runtime.InternalPlatform.run(InternalPlatform.java:1038) at org.eclipse.core.runtime.Platform.run(Platform.java:775) at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:44) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:148) at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:739) at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:968) at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1067) at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:243) at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:238) at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:277) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:66) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:844) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:2929) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2562) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:1694) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:1658) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:366) 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:226) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:375) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:162) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at org.eclipse.core.launcher.Main.invokeFramework(Main.java:334) at org.eclipse.core.launcher.Main.basicRun(Main.java:278) at org.eclipse.core.launcher.Main.run(Main.java:973) at org.eclipse.core.launcher.Main.main(Main.java:948) Thread [main] (Suspended (exception ResourceException)) ContentDescriptionManager.readDescription(File) line: 397 ContentDescriptionManager.getDescriptionFor(File, ResourceInfo) line: 333 File.getContentDescription() line: 276 IDE.getContentType(IFile) line: 960 IDE.getDefaultEditor(IFile, boolean) line: 910 IDE.getEditorDescriptor(IFile, boolean) line: 538 IDE.openEditor(IWorkbenchPage, IFile, boolean, boolean) line: 370 IDE.openEditor(IWorkbenchPage, IFile, boolean) line: 334 OpenFileAction.openFile(IFile) line: 98 OpenFileAction(OpenSystemEditorAction).run() line: 98 OpenActionGroup.runDefaultAction(IStructuredSelection) line: 120 MainActionGroup.runDefaultAction(IStructuredSelection) line: 326 ResourceNavigator.handleOpen(OpenEvent) line: 650 ResourceNavigator$6.open(OpenEvent) line: 409 StructuredViewer$2.run() line: 741 InternalPlatform.run(ISafeRunnable) line: 1038 Platform.run(ISafeRunnable) line: 775 JFaceUtil$1.run(ISafeRunnable) line: 44 SafeRunnable.run(ISafeRunnable) line: 148 TreeViewer(StructuredViewer).fireOpen(OpenEvent) line: 739 TreeViewer(StructuredViewer).handleOpen(SelectionEvent) line: 968 StructuredViewer$6.handleOpen(SelectionEvent) line: 1067 OpenStrategy.fireOpenEvent(SelectionEvent) line: 243 OpenStrategy.access$2(OpenStrategy, SelectionEvent) line: 238 OpenStrategy$1.handleEvent(Event) line: 277 EventTable.sendEvent(Event) line: 66 Tree(Widget).sendEvent(Event) line: 844 Display.runDeferredEvents() line: 2929 Display.readAndDispatch() line: 2562 Workbench.runEventLoop(Window$IExceptionHandler, Display) line: 1694 Workbench.runUI() line: 1658 Workbench.createAndRunWorkbench(Display, WorkbenchAdvisor) line: 366 PlatformUI.createAndRunWorkbench(Display, WorkbenchAdvisor) line: 143 IDEApplication.run(Object) line: 103 PlatformActivator$1.run(Object) line: 226 EclipseStarter.run(Object) line: 375 EclipseStarter.run(String[], Runnable) line: 162 NativeMethodAccessorImpl.invoke0(Method, Object, Object[]) line: not available [native method] NativeMethodAccessorImpl.invoke(Object, Object[]) line: 39 DelegatingMethodAccessorImpl.invoke(Object, Object[]) line: 25 Method.invoke(Object, Object[]) line: 324 Main.invokeFramework(String[], URL[]) line: 334 Main.basicRun(String[]) line: 278 Main.run(String[]) line: 973 Main.main(String[]) line: 948
Created attachment 22239 [details] patch for org.eclipse.core.resources
This patch fixes the problem. If the file does not exist anymore, the content type detection process will see it as being empty. I believe we should fix it as a polish item if time permits. DJ?
+1
I was about to release this (even wrote a test for this scenario) when I realized that we spec we fail if the contents of the file cannot be read. So I think the current behavior is fine and we should not change it. Man, I just spared an RC2 approval. Can I use it for another PR of my choice? Or can I at least cash it?
Unfortuanatly bug approvals are like coupons... they carry the clause: Cannot be redeemed for cash value. :-)
