title: Eclipse no longer starts
body: <p>Eclipse has been working fine for as long as I can remember but now it refuses to start.</p>
  
  <p>The log file in the workspace shows the following. I am using Fedora 18.
  Any ideas?</p>
  
  <pre><code>!SESSION 2013-03-17 20:16:47.631 -----------------------------------------------
  eclipse.buildId=4.2.0.M20130304-1457
  java.version=1.7.0_09-icedtea
  java.vendor=Oracle Corporation
  BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_AU
  Command-line arguments:  -os linux -ws gtk -arch x86_64
  
  !ENTRY org.eclipse.osgi 4 0 2013-03-17 20:16:55.304
  !MESSAGE Application error
  !STACK 1
  java.util.EmptyStackException
      at java.util.Stack.peek(Stack.java:102)
      at java.util.Stack.pop(Stack.java:84)
      at org.eclipse.e4.ui.css.core.impl.sac.CSSDocumentHandlerImpl.endDocument(CSSDocumentHandlerImpl.java:74)
      at org.apache.batik.css.parser.Parser.parseStyleSheet(Parser.java:238)
      at org.eclipse.e4.ui.css.core.impl.dom.parsers.AbstractCSSParser.parseStyleSheet(AbstractCSSParser.java:64)
      at org.eclipse.e4.ui.css.core.impl.engine.AbstractCSSEngine.parseStyleSheet(AbstractCSSEngine.java:180)
      at org.eclipse.e4.ui.css.swt.internal.theme.ThemeEngine.setTheme(ThemeEngine.java:415)
      at org.eclipse.e4.ui.css.swt.internal.theme.ThemeEngine.setTheme(ThemeEngine.java:376)
      at org.eclipse.e4.ui.css.swt.internal.theme.ThemeEngine.setTheme(ThemeEngine.java:369)
      at org.eclipse.e4.ui.css.swt.internal.theme.ThemeEngine.restore(ThemeEngine.java:546)
      at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.initializeStyling(PartRenderingEngine.java:1179)
      at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:945)
      at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
      at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:942)
      at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86)
      at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:588)
      at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
      at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:543)
      at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
      at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
      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:353)
      at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
      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:601)
      at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:638)
      at org.eclipse.equinox.launcher.Main.basicRun(Main.java:593)
      at org.eclipse.equinox.launcher.Main.run(Main.java:1447)
      at org.eclipse.equinox.launcher.Main.main(Main.java:1423)
  </code></pre>