Program: 92357
Project: 92357
Buggy source:
@SuppressWarnings({"String_Node_Str","String_Node_Str"}) @Override public Object execute(final ExecutionEvent event) throws ExecutionException {
  final IWorkbenchWindow window=PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  if (window == null)   return false;
  try {
    final IFile bookmarksFile=fExperiment.getProject().getExperimentsFolder().getResource().getFile(BOOKMARKS_HIDDEN_FILE);
    if (!bookmarksFile.exists()) {
      final InputStream source=new ByteArrayInputStream(new byte[0]);
      bookmarksFile.create(source,true,null);
    }
    bookmarksFile.setHidden(true);
    final IFile file=fExperiment.getResource().getFile(fExperiment.getName() + '_');
    if (!file.exists())     file.createLink(bookmarksFile.getLocation(),IResource.REPLACE,null);
    file.setHidden(true);
    file.setPersistentProperty(TmfCommonConstants.TRACETYPE,TmfExperiment.class.getCanonicalName());
    final List<TmfTraceElement> traceEntries=fExperiment.getTraces();
    final int nbTraces=traceEntries.size();
    int cacheSize=Integer.MAX_VALUE;
    boolean useEditor=true;
    String experimentEditorId=null;
    final ITmfTrace<?>[] traces=new ITmfTrace[nbTraces];
    for (int i=0; i < nbTraces; i++) {
      TmfTraceElement element=traceEntries.get(i);
      element=element.getElementUnderTraceFolder();
      final ITmfTrace trace=element.instantiateTrace();
      final ITmfEvent traceEvent=element.instantiateEvent();
      if ((trace == null) || (traceEvent == null)) {
        displayErrorMsg(Messages.OpenExperimentHandler_NoTraceType);
        for (int j=0; j < i; j++)         traces[j].dispose();
        return null;
      }
      try {
        trace.initTrace(element.getResource(),element.getLocation().getPath(),traceEvent.getClass());
      }
 catch (      final TmfTraceException e) {
        displayErrorMsg("String_Node_Str");
      }
      cacheSize=Math.min(cacheSize,trace.getCacheSize());
      final String editorId=element.getEditorId();
      if (editorId == null) {
        useEditor=false;
        experimentEditorId=null;
      }
 else       if (useEditor)       if (experimentEditorId == null)       experimentEditorId=editorId;
 else       if (!editorId.equals(experimentEditorId))       useEditor=false;
      traces[i]=trace;
    }
    final TmfExperiment experiment=new TmfExperiment(ITmfEvent.class,fExperiment.getName(),traces,cacheSize);
    experiment.setBookmarksFile(file);
    if (useEditor) {
      final IEditorInput editorInput=new TmfEditorInput(file,experiment);
      final IWorkbench wb=PlatformUI.getWorkbench();
      final IWorkbenchPage activePage=wb.getActiveWorkbenchWindow().getActivePage();
      final String editorId=TmfEventsEditor.ID;
      final IEditorPart editor=activePage.findEditor(new FileEditorInput(file));
      if ((editor != null) && (editor instanceof IReusableEditor)) {
        activePage.reuseEditor((IReusableEditor)editor,editorInput);
        activePage.activate(editor);
      }
 else       activePage.openEditor(editorInput,editorId);
      experiment.initTrace(null,null,null);
      IDE.setDefaultEditor(file,editorId);
    }
 else {
      TmfExperiment.setCurrentExperiment(experiment);
      TmfSignalManager.dispatchSignal(new TmfExperimentSelectedSignal(this,experiment));
      IDE.setDefaultEditor(file,EventsViewEditor.ID);
    }
  }
 catch (  final CoreException e) {
    displayErrorMsg(e.getMessage());
  }
  return null;
}

Fixed version (ground truth):
@SuppressWarnings({"String_Node_Str","String_Node_Str"}) @Override public Object execute(final ExecutionEvent event) throws ExecutionException {
  final IWorkbenchWindow window=PlatformUI.getWorkbench().getActiveWorkbenchWindow();
  if (window == null)   return false;
  try {
    final IFile bookmarksFile=fExperiment.getProject().getExperimentsFolder().getResource().getFile(BOOKMARKS_HIDDEN_FILE);
    if (!bookmarksFile.exists()) {
      final InputStream source=new ByteArrayInputStream(new byte[0]);
      bookmarksFile.create(source,true,null);
    }
    bookmarksFile.setHidden(true);
    final IFile file=fExperiment.getResource().getFile(fExperiment.getName() + '_');
    if (!file.exists()) {
      file.createLink(bookmarksFile.getLocation(),IResource.REPLACE,null);
    }
    file.setHidden(true);
    file.setPersistentProperty(TmfCommonConstants.TRACETYPE,TmfExperiment.class.getCanonicalName());
    final List<TmfTraceElement> traceEntries=fExperiment.getTraces();
    final int nbTraces=traceEntries.size();
    int cacheSize=Integer.MAX_VALUE;
    boolean useEditor=true;
    String experimentEditorId=null;
    final ITmfTrace<?>[] traces=new ITmfTrace[nbTraces];
    for (int i=0; i < nbTraces; i++) {
      TmfTraceElement element=traceEntries.get(i);
      element=element.getElementUnderTraceFolder();
      final ITmfTrace trace=element.instantiateTrace();
      final ITmfEvent traceEvent=element.instantiateEvent();
      if ((trace == null) || (traceEvent == null)) {
        displayErrorMsg(Messages.OpenExperimentHandler_NoTraceType);
        for (int j=0; j < i; j++) {
          traces[j].dispose();
        }
        return null;
      }
      try {
        trace.initTrace(element.getResource(),element.getLocation().getPath(),traceEvent.getClass());
      }
 catch (      final TmfTraceException e) {
        displayErrorMsg("String_Node_Str");
      }
      cacheSize=Math.min(cacheSize,trace.getCacheSize());
      final String editorId=element.getEditorId();
      if (editorId == null) {
        useEditor=false;
        experimentEditorId=null;
      }
 else       if (useEditor) {
        if (experimentEditorId == null) {
          experimentEditorId=editorId;
        }
 else         if (!editorId.equals(experimentEditorId)) {
          useEditor=false;
        }
      }
      traces[i]=trace;
    }
    TmfExperiment experiment;
    if (useEditor) {
      experiment=new TmfExperiment(ITmfEvent.class,fExperiment.getName(),traces,cacheSize){
        @Override public void initTrace(        IResource resource,        String path,        Class type){
          super.initTrace(resource,path,type);
          getIndexer().buildIndex(getNbEvents(),TmfTimeRange.ETERNITY,false);
        }
      }
;
    }
 else {
      experiment=new TmfExperiment(ITmfEvent.class,fExperiment.getName(),traces,cacheSize);
    }
    experiment.setBookmarksFile(file);
    if (useEditor) {
      final IEditorInput editorInput=new TmfEditorInput(file,experiment);
      final IWorkbench wb=PlatformUI.getWorkbench();
      final IWorkbenchPage activePage=wb.getActiveWorkbenchWindow().getActivePage();
      final String editorId=TmfEventsEditor.ID;
      final IEditorPart editor=activePage.findEditor(new FileEditorInput(file));
      if ((editor != null) && (editor instanceof IReusableEditor)) {
        activePage.reuseEditor((IReusableEditor)editor,editorInput);
        activePage.activate(editor);
      }
 else {
        activePage.openEditor(editorInput,editorId);
      }
      experiment.initTrace(null,null,null);
      IDE.setDefaultEditor(file,editorId);
    }
 else {
      TmfExperiment.setCurrentExperiment(experiment);
      TmfSignalManager.dispatchSignal(new TmfExperimentSelectedSignal(this,experiment));
      IDE.setDefaultEditor(file,EventsViewEditor.ID);
    }
  }
 catch (  final CoreException e) {
    displayErrorMsg(e.getMessage());
  }
  return null;
}