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The following incident was reported via the automated error reporting: code: 0 plugin: org.eclipse.ui_3.107.0.v20150107-0903 message: Unhandled event loop exception fingerprint: 1d284832 exception class: java.lang.ClassCastException exception message: org.eclipse.jdt.internal.core.TypeParameter cannot be cast to org.eclipse.jdt.core.IType number of children: 0 java.lang.ClassCastException: org.eclipse.jdt.internal.core.TypeParameter cannot be cast to org.eclipse.jdt.core.IType at org.eclipse.jdt.internal.ui.javaeditor.JavaElementImplementationHyperlink.openImplementations(JavaElementImplementationHyperlink.java:198) at org.eclipse.jdt.internal.ui.javaeditor.JavaElementImplementationHyperlink.open(JavaElementImplementationHyperlink.java:145) at org.eclipse.jface.text.hyperlink.MultipleHyperlinkPresenter$LinkListInformationControl.openSelectedLink(MultipleHyperlinkPresenter.java:373) at org.eclipse.jface.text.hyperlink.MultipleHyperlinkPresenter$LinkListInformationControl.access$1(MultipleHyperlinkPresenter.java:365) at org.eclipse.jface.text.hyperlink.MultipleHyperlinkPresenter$4.mouseUp(MultipleHyperlinkPresenter.java:341) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:220) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4354) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1061) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4172) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3761) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1151) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1032) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:156) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:648) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:337) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:592) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:138) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:380) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:235) at sun.reflect.NativeMethodAccessorImpl.invoke0(null:-2) at sun.reflect.NativeMethodAccessorImpl.invoke(null:-1) at sun.reflect.DelegatingMethodAccessorImpl.invoke(null:-1) at java.lang.reflect.Method.invoke(null:-1) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:648) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:603) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) General Information: reported-by: anonymous-id: f8360295-7a2f-4cf9-b5e3-6bca9263bec3 eclipse-build-id: 4.5.0.I20150203-1300 eclipse-product: org.eclipse.epp.package.jee.product operating system: Windows7 6.1.0 (x86) - win32 jre-version: 1.8.0_31-b13 The following plug-ins were present on the execution stack (*): 1. org.eclipse.core.databinding.observable_1.4.1.v20140910-2107 2. org.eclipse.core.databinding_1.4.100.v20141002-1314 3. org.eclipse.core.runtime_3.10.0.v20150112-1422 4. org.eclipse.e4.ui.workbench_1.3.0.v20150113-2327 5. org.eclipse.e4.ui.workbench.swt_0.12.100.v20150114-0905 6. org.eclipse.equinox.app_1.3.200.v20130910-1609 7. org.eclipse.equinox.launcher_1.3.0.v20140415-2008 8. org.eclipse.jdt.ui_3.10.100.v20150116-1347 9. org.eclipse.jdt_3.11.0.v20150203-1300 10. org.eclipse.jface.text_3.10.0.v20150112-1146 11. org.eclipse.jface_3.11.0.v20150121-1751 12. org.eclipse.swt_3.104.0.v20150203-2243 13. org.eclipse.ui_3.107.0.v20150107-0903 14. org.eclipse.ui.ide.application_1.0.600.v20150120-1542 15. org.eclipse.ui.ide_3.10.100.v20150126-1117 Please note that: * Messages, stacktraces, and nested status objects may be shortened. * Bug fields like status, resolution, and whiteboard are sent back to reporters. * The list of present bundles and their respective versions was calculated by package naming heuristics. This may or may not reflect reality. Other Resources: * Report: https://dev.eclipse.org/recommenders/committers/confess/#/problems/551cfe6ce4b026254ee004bc * Manual: https://dev.eclipse.org/recommenders/community/confess/#/guide Thank you for your assistance. Your friendly error-reports-inbox. This bug was created on behalf of noopur_gupta@in.ibm.com.
> This bug was created on behalf of noopur_gupta@in.ibm.com. Noopur, any additional info?
LMK, if this indicates that the new binding based hovers create bogus hyperlinks. From some quick experiments I could not reproduce using binding based hovers and by clicking on type parameters / type variables in various positions.
> This bug was created on behalf of noopur_gupta@in.ibm.com. I have just triaged this report from the error reporting tool and I am not the reporter of this stacktrace. The error reporting tool always adds this statement at the end of a bug report when I triage any report as a new bug on Bugzilla. It also adds me to the cc list of the created bug. Similar confusion (that I have reported the issue) has happened several times when I triaged bugs to JDT/Core. Hence, I usually delete this statement from the bug report and remove myself from the cc list in other components after creating the bug report. Marcel, I couldn't find a way to disable these while creating the bug reports. Let me know if I can disable it somehow.
(In reply to Noopur Gupta from comment #3) > Marcel, I couldn't find a way to disable these while creating the bug > reports. Let me know if I can disable it somehow. I created bug 473447. Please subscribe to get notified when it's done. FWIW, I'm not following every bug discussion. Please consider creating bugs in EPP logging about annoying functionality directly :)
We can take a closer look once we get more details.
. *** This bug has been marked as a duplicate of bug 510019 ***
