[jbosstools-issues] [JBoss JIRA] (JBIDE-9740) Class cast exception in CA on CSS style classes

Class cast exception in CA on CSS style classes ----------------------------------------------- Key: JBIDE-9740 URL: https://issues.jboss.org/browse/JBIDE-9740 Project: Tools (JBoss Tools) Issue Type: Bug Components: jsp/jsf/xml source editing Affects Versions: 3.3.0.M2 Reporter: Victor Rubezhny Assignee: Victor Rubezhny Fix For: 3.3.0.M4 Class cast exception occurs in CA on CSS style classes in case of @Media rule presents in CSS Stylesheet: {code} java.lang.ClassCastException: org.eclipse.wst.css.core.internal.document.CSSMediaRuleImpl cannot be cast to org.eclipse.wst.css.core.internal.provisional.document.ICSSStyleRule at org.jboss.tools.jst.web.kb.internal.proposal.CSSClassProposalType.getClassNamesFromCSSRule(CSSClassProposalType.java:84) at org.jboss.tools.jst.web.kb.internal.proposal.CSSClassProposalType.init(CSSClassProposalType.java:60) at org.jboss.tools.jst.web.kb.internal.proposal.CustomProposalType.getProposals(CustomProposalType.java:65) at org.jboss.tools.jst.web.kb.internal.taglib.CustomTagLibAttribute.getProposals(CustomTagLibAttribute.java:75) at org.jboss.tools.jst.web.kb.PageProcessor.getProposals(PageProcessor.java:142) at org.jboss.tools.jst.web.kb.PageProcessor.getProposals(PageProcessor.java:61) at org.jboss.tools.jst.jsp.contentassist.computers.XmlTagCompletionProposalComputer.addAttributeValueProposals(XmlTagCompletionProposalComputer.java:273) at org.jboss.tools.jst.jsp.contentassist.computers.FaceletsTagCompletionProposalComputer.addAttributeValueProposals(FaceletsTagCompletionProposalComputer.java:222) at org.eclipse.wst.xml.ui.internal.contentassist.AbstractXMLCompletionProposalComputer.computeAttributeValueProposals(AbstractXMLCompletionProposalComputer.java:594) at org.eclipse.wst.xml.ui.internal.contentassist.AbstractXMLCompletionProposalComputer.computeCompletionProposals(AbstractXMLCompletionProposalComputer.java:399) at org.jboss.tools.jst.jsp.contentassist.computers.AbstractXmlCompletionProposalComputer.computeCompletionProposals(AbstractXmlCompletionProposalComputer.java:659) at org.eclipse.wst.xml.ui.internal.contentassist.AbstractXMLCompletionProposalComputer.computeCompletionProposals(AbstractXMLCompletionProposalComputer.java:169) at org.jboss.tools.jst.jsp.contentassist.computers.AbstractXmlCompletionProposalComputer.computeCompletionProposals(AbstractXmlCompletionProposalComputer.java:85) at org.jboss.tools.jst.jsp.contentassist.computers.FaceletsTagCompletionProposalComputer.computeCompletionProposals(FaceletsTagCompletionProposalComputer.java:78) at org.eclipse.wst.sse.ui.internal.contentassist.CompletionProposalComputerDescriptor.computeCompletionProposals(CompletionProposalComputerDescriptor.java:284) at org.eclipse.wst.sse.ui.internal.contentassist.CompletionProposalCategory.computeCompletionProposals(CompletionProposalCategory.java:294) at org.eclipse.wst.sse.ui.contentassist.StructuredContentAssistProcessor.collectProposals(StructuredContentAssistProcessor.java:475) at org.eclipse.wst.sse.ui.contentassist.StructuredContentAssistProcessor.computeCompletionProposals(StructuredContentAssistProcessor.java:254) at org.eclipse.wst.sse.ui.internal.contentassist.CompoundContentAssistProcessor.computeCompletionProposals(CompoundContentAssistProcessor.java:127) at org.eclipse.jface.text.contentassist.ContentAssistant.computeCompletionProposals(ContentAssistant.java:1830) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.computeProposals(CompletionProposalPopup.java:556) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.access$16(CompletionProposalPopup.java:553) at org.eclipse.jface.text.contentassist.CompletionProposalPopup$2.run(CompletionProposalPopup.java:488) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.jface.text.contentassist.CompletionProposalPopup.showProposals(CompletionProposalPopup.java:482) at org.eclipse.jface.text.contentassist.ContentAssistant.showPossibleCompletions(ContentAssistant.java:1656) at org.eclipse.wst.sse.ui.internal.StructuredTextViewer.doOperation(StructuredTextViewer.java:457) at org.jboss.tools.jst.jsp.jspeditor.JSPTextEditor$JSPStructuredTextViewer.doOperation(JSPTextEditor.java:683) at org.eclipse.ui.texteditor.TextOperationAction$1.run(TextOperationAction.java:128) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.texteditor.TextOperationAction.run(TextOperationAction.java:126) at org.eclipse.jface.action.Action.runWithEvent(Action.java:498) at org.eclipse.ui.commands.ActionHandler.execute(ActionHandler.java:185) at org.eclipse.ui.internal.handlers.LegacyHandlerWrapper.execute(LegacyHandlerWrapper.java:109) at org.eclipse.core.commands.Command.executeWithChecks(Command.java:476) at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:508) at org.eclipse.ui.internal.handlers.HandlerService.executeCommand(HandlerService.java:169) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.executeCommand(WorkbenchKeyboard.java:468) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.press(WorkbenchKeyboard.java:786) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.processKeyEvent(WorkbenchKeyboard.java:885) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.filterKeySequenceBindings(WorkbenchKeyboard.java:567) at org.eclipse.ui.internal.keys.WorkbenchKeyboard.access$3(WorkbenchKeyboard.java:508) at org.eclipse.ui.internal.keys.WorkbenchKeyboard$KeyDownFilter.handleEvent(WorkbenchKeyboard.java:123) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Display.filterEvent(Display.java:1531) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1257) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1282) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1267) at org.eclipse.swt.widgets.Widget.sendKeyEvent(Widget.java:1294) at org.eclipse.swt.widgets.Widget.gtk_key_press_event(Widget.java:730) at org.eclipse.swt.widgets.Control.gtk_key_press_event(Control.java:3019) at org.eclipse.swt.widgets.Composite.gtk_key_press_event(Composite.java:734) at org.eclipse.swt.widgets.Widget.windowProc(Widget.java:1743) at org.eclipse.swt.widgets.Control.windowProc(Control.java:5016) at org.eclipse.swt.widgets.Display.windowProc(Display.java:4408) at org.eclipse.swt.internal.gtk.OS._gtk_main_do_event(Native Method) at org.eclipse.swt.internal.gtk.OS.gtk_main_do_event(OS.java:8394) at org.eclipse.swt.widgets.Display.eventProc(Display.java:1245) at org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(Native Method) at org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(OS.java:2258) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3207) at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2696) at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2660) at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2494) at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:674) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:667) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123) 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:344) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:616) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577) at org.eclipse.equinox.launcher.Main.run(Main.java:1410) at org.eclipse.equinox.launcher.Main.main(Main.java:1386) {code}