How to use

IJavaSourceLocation

in

org.eclipse.jdt.launching.sourcelookup

@Override
public Object findSourceElement(String name) throws CoreException {
  if (fRootLocations != null) {
    for (int i = 0; i < fRootLocations.length; i++) {
      Object element = fRootLocations[i].findSourceElement(name);
      if (element != null) {
        return element;
      }
    }
  }
  return null;
}

@Override
public String getMemento() throws CoreException {
  Document doc = DebugPlugin.newDocument();
  Element node = doc.createElement("javaSourceLocator"); //$NON-NLS-1$
  doc.appendChild(node);
  IJavaSourceLocation[] locations = getSourceLocations();
  for (int i = 0; i < locations.length; i++) {
    Element child = doc.createElement("javaSourceLocation"); //$NON-NLS-1$
    child.setAttribute("class", locations[i].getClass().getName()); //$NON-NLS-1$
    child.setAttribute("memento", locations[i].getMemento()); //$NON-NLS-1$
    node.appendChild(child);
  }
  return DebugPlugin.serializeDocument(doc);
}

    abort(LaunchingMessages.JavaSourceLocator_Unable_to_restore_source_location__12, e);
  location.initializeFrom(data);
  sourceLocations.add(location);
} else {

    abort(LaunchingMessages.JavaSourceLocator_Unable_to_restore_source_location__12, e); 
  location.initializeFrom(data);
  sourceLocations.add(location);
} else {

@Override
public Object findSourceElement(String name) throws CoreException {
  if (fRootLocations != null) {
    for (int i = 0; i < fRootLocations.length; i++) {
      Object element = fRootLocations[i].findSourceElement(name);
      if (element != null) {
        return element;
      }
    }
  }
  return null;
}

@Override
public String getMemento() throws CoreException {
  Document doc = DebugPlugin.newDocument();
  Element node = doc.createElement("javaSourceLocator"); //$NON-NLS-1$
  doc.appendChild(node);
  
  IJavaSourceLocation[] locations = getSourceLocations();
  for (int i = 0; i < locations.length; i++) {
    Element child = doc.createElement("javaSourceLocation"); //$NON-NLS-1$
    child.setAttribute("class", locations[i].getClass().getName()); //$NON-NLS-1$
    child.setAttribute("memento", locations[i].getMemento()); //$NON-NLS-1$
    node.appendChild(child);
  }
  return DebugPlugin.serializeDocument(doc); 
}

for (int i = 0; i < locations.length; i++) {
  try {
    Object sourceElement = locations[i].findSourceElement(name);
    if (sourceElement != null) {
      list.add(sourceElement);

for (int i = 0; i < locations.length; i++) {
  try {
    Object sourceElement = locations[i].findSourceElement(name);
    if (sourceElement != null) {
      list.add(sourceElement);

for (int i = 0; i < locations.length; i++) {
  try {
    Object sourceElement = locations[i].findSourceElement(name);
    if (sourceElement != null) {
      return sourceElement;

for (int i = 0; i < locations.length; i++) {
  try {
    Object sourceElement = locations[i].findSourceElement(name);
    if (sourceElement != null) {
      return sourceElement;