#295 Unhandled event loop exception

[Ender Ozmen]

Whenever I want to create a new check configuration or copy an existing one, I get the "Unhandled event loop exception". The reason of this exception is that my computer's regional setting is set to Turkey. At 67. line of com.puppycrawl.tools.checkstyle.api.SeverityLevel class, there is a statement like "return valueOf(SeverityLevel.class, aSecurityLevelName.trim().toUpperCase())" and for "warning" security level name, this method returns "WARNİNG" (we have both "i" and "İ" in Turkish, toUpperCase method for "i" returns "İ" when the regional setting is set to Turkey). There is no "WARNİNG" enum type, therefore I get the exception. If I change the regional setting to US, I can create new check configurations and everything works fine. Eclipse Error Log and exception stack trace is below:

eclipse-cs version: 5.0.0

Eclipse version: 3.5.0

Java Runtime (JDK/JRE) version: 1.6.0_14

Operating system: Windows XP SP3

Eclipse Error Log and exception stack trace is:

eclipse.buildId=I20090611-1540
java.version=1.6.0_14
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=tr_TR
Framework arguments: -product org.eclipse.epp.package.jee.product
Command-line arguments: -os win32 -ws win32 -arch x86 -product org.eclipse.epp.package.jee.product

Error
Mon Jul 20 21:57:40 EEST 2009
Unhandled event loop exception

java.lang.IllegalArgumentException: No enum const class com.puppycrawl.tools.checkstyle.api.SeverityLevel.WARNİNG
at java.lang.Enum.valueOf(Unknown Source)
at com.puppycrawl.tools.checkstyle.api.SeverityLevel.getInstance(SeverityLevel.java:67)
at com.puppycrawl.tools.checkstyle.ConfigurationLoader$InternalLoader.endElement(ConfigurationLoader.java:196)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.dtd.XMLNSDTDValidator.endNamespaceScope(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.handleEndElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.endElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at com.puppycrawl.tools.checkstyle.api.AbstractLoader.parseInputSource(AbstractLoader.java:98)
at com.puppycrawl.tools.checkstyle.ConfigurationLoader.parseInputStream(ConfigurationLoader.java:278)
at com.puppycrawl.tools.checkstyle.ConfigurationLoader.loadConfiguration(ConfigurationLoader.java:359)
at net.sf.eclipsecs.core.config.CheckConfigurationTester.getUnresolvedProperties(CheckConfigurationTester.java:98)
at net.sf.eclipsecs.ui.config.CheckConfigurationPropertiesDialog.okPressed(CheckConfigurationPropertiesDialog.java:313)
at org.eclipse.jface.dialogs.Dialog.buttonPressed(Dialog.java:472)
at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.java:624)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:228)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3880)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3473)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
at org.eclipse.jface.window.Window.open(Window.java:801)
at net.sf.eclipsecs.ui.config.CheckConfigurationWorkingSetEditor.addCheckConfig(CheckConfigurationWorkingSetEditor.java:465)
at net.sf.eclipsecs.ui.config.CheckConfigurationWorkingSetEditor.access$1(CheckConfigurationWorkingSetEditor.java:461)
at net.sf.eclipsecs.ui.config.CheckConfigurationWorkingSetEditor$PageController.widgetSelected(CheckConfigurationWorkingSetEditor.java:383)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:228)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3880)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3473)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:825)
at org.eclipse.jface.window.Window.open(Window.java:801)
at org.eclipse.ui.internal.dialogs.WorkbenchPreferenceDialog.open(WorkbenchPreferenceDialog.java:211)
at org.eclipse.ui.internal.OpenPreferencesAction.run(OpenPreferencesAction.java:65)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498)
at org.eclipse.jface.action.ActionContributionItem.handleWidgetSelection(ActionContributionItem.java:584)
at org.eclipse.jface.action.ActionContributionItem.access$2(ActionContributionItem.java:501)
at org.eclipse.jface.action.ActionContributionItem$5.handleEvent(ActionContributionItem.java:411)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3880)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3473)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
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:368)
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:559)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
at org.eclipse.equinox.launcher.Main.run(Main.java:1311)

[Lars Koedderitzsch]

That seems to be a bug in the Checkstyle core, please file over at the Checkstyle project:
http://sourceforge.net/projects/checkstyle

The problem cannot be fixed or worked around in the Eclipse plugin.