ISourceContainer[] getSourceContainers(String location, String id) throws CoreException {

    ISourceContainer[] containers = (ISourceContainer[]) fSourceContainerMap.get(location);
    if (containers != null) {
      return containers;
    }

    ArrayList result = new ArrayList();
    ModelEntry entry = MonitorRegistry.findEntry(id);

    boolean match = false;

    IMonitorModelBase[] models = entry.getWorkspaceModels();
    for (int i = 0; i < models.length; i++) {
      if (isPerfectMatch(models[i], new Path(location))) {
        IResource resource = models[i].getUnderlyingResource();
        // if the plug-in matches a workspace model,
        // add the project and any libraries not coming via a container
        // to the list of source containers, in that order
        if (resource != null) {
          addProjectSourceContainers(resource.getProject(), result);
        }
        match = true;
        break;
      }
    }

    if (!match) {
      File file = new File(location);
      if (file.isFile()) {
        // in case of linked plug-in projects that map to an external JARd plug-in,
        // use source container that maps to the library in the linked project.
        ISourceContainer container = getArchiveSourceContainer(location);
        if (container != null) {
          containers = new ISourceContainer[] {container};
          fSourceContainerMap.put(location, containers);
          return containers;
        }
      }

      models = entry.getExternalModels();
      for (int i = 0; i < models.length; i++) {
        if (isPerfectMatch(models[i], new Path(location))) {
          // try all source zips found in the source code locations
          IClasspathEntry[] entries = MDEClasspathContainer.getExternalEntries(models[i]);
          for (int j = 0; j < entries.length; j++) {
            IRuntimeClasspathEntry rte = convertClasspathEntry(entries[j]);
            if (rte != null) result.add(rte);
          }
          break;
        }
      }
    }

    IRuntimeClasspathEntry[] entries =
        (IRuntimeClasspathEntry[]) result.toArray(new IRuntimeClasspathEntry[result.size()]);
    containers = JavaRuntime.getSourceContainers(entries);
    fSourceContainerMap.put(location, containers);
    return containers;
  }
 public ExtensionsErrorReporter(IFile file) {
   super(file);
   fModel = MonitorRegistry.findModel(file.getProject());
   try {
     if (fModel != null && fModel.getUnderlyingResource() != null)
       fBuildModel = ClasspathUtilCore.getBuild(fModel);
   } catch (CoreException e) {
   }
 }
  private boolean resourceExists(String location) {
    String bundleJar = null;
    IPath path = new Path(location);
    if ("platform:".equals(path.getDevice()) && path.segmentCount() > 2) { // $NON-NLS-1$
      if ("plugin".equals(path.segment(0))) { // $NON-NLS-1$
        String id = path.segment(1);
        IMonitorModelBase model = MonitorRegistry.findModel(id);
        if (model != null && model.isEnabled()) {
          path = path.setDevice(null).removeFirstSegments(2);
          String bundleLocation = model.getInstallLocation();
          if (bundleLocation.endsWith(".jar")) { // $NON-NLS-1$
            bundleJar = bundleLocation;
          } else {
            path = new Path(model.getInstallLocation()).append(path);
          }
          location = path.toString();
        }
      }
    } else if (path.getDevice() == null
        && path.segmentCount() > 3
        && "platform:".equals(path.segment(0))) { // $NON-NLS-1$
      if ("plugin".equals(path.segment(1))) { // $NON-NLS-1$
        String id = path.segment(2);
        IMonitorModelBase model = MonitorRegistry.findModel(id);
        if (model != null && model.isEnabled()) {
          path = path.removeFirstSegments(3);
          String bundleLocation = model.getInstallLocation();
          if (bundleLocation.endsWith(".jar")) { // $NON-NLS-1$
            bundleJar = bundleLocation;
          } else {
            path = new Path(model.getInstallLocation()).append(path);
          }
          location = path.toString();
        }
      }
    }

    ArrayList paths = new ArrayList();
    if (location.indexOf("$nl$") != -1) { // $NON-NLS-1$
      StringTokenizer tokenizer = new StringTokenizer(TargetPlatform.getNL(), "_"); // $NON-NLS-1$
      String language = tokenizer.hasMoreTokens() ? tokenizer.nextToken() : null;
      String country = tokenizer.hasMoreTokens() ? tokenizer.nextToken() : null;
      if (language != null && country != null)
        paths.add(
            location.replaceAll(
                "\\$nl\\$",
                "nl"
                    + IPath.SEPARATOR
                    + language
                    + IPath.SEPARATOR
                    + country)); //$NON-NLS-1$ //$NON-NLS-2$
      if (language != null)
        paths.add(
            location.replaceAll(
                "\\$nl\\$", "nl" + IPath.SEPARATOR + language)); // $NON-NLS-1$ //$NON-NLS-2$
      paths.add(location.replaceAll("\\$nl\\$", "")); // $NON-NLS-1$ //$NON-NLS-2$
    } else {
      paths.add(location);
    }

    for (int i = 0; i < paths.size(); i++) {
      if (bundleJar == null) {
        IPath currPath = new Path(paths.get(i).toString());
        if (currPath.isAbsolute() && currPath.toFile().exists()) return true;
        if (PDEProject.getBundleRoot(fFile.getProject()).findMember(currPath) != null) return true;
        if (fBuildModel != null
            && fBuildModel.getEntry("source." + paths.get(i)) != null) // $NON-NLS-1$
        return true;
      } else {
        if (CoreUtility.jarContainsResource(new File(bundleJar), paths.get(i).toString(), false))
          return true;
      }
    }

    return false;
  }