/**
* Avoid garbage collecting interim results.
*
* @param value object to disable garbage collection for
*/
private void disableCollection(IJavaObject value) {
if (fPermStorage == null) {
fPermStorage = new ArrayList<IJavaObject>(5);
}
try {
value.disableCollection();
fPermStorage.add(value);
} catch (CoreException e) {
JDIDebugPlugin.log(e);
}
}
/** Re-enable garbage collection if interim results. */
private void releaseObjects() {
if (fPermStorage != null) {
Iterator<IJavaObject> iterator = fPermStorage.iterator();
while (iterator.hasNext()) {
IJavaObject object = iterator.next();
try {
object.enableCollection();
} catch (CoreException e) {
// don't worry about GC if the VM has terminated
if ((e.getStatus().getException() instanceof VMDisconnectedException)) {
break;
}
JDIDebugPlugin.log(e);
}
}
fPermStorage = null;
}
}
/** @return all references to the root object as an array of IJavaObjects */
protected synchronized IJavaObject[] getReferences() {
try {
int max = HeapWalkingManager.getDefault().getAllReferencesMaxCount();
IJavaObject[] referringObjects = null;
fIsMoreThanPreference = false;
if (max == 0) {
referringObjects = fRoot.getReferringObjects(max);
} else {
referringObjects = fRoot.getReferringObjects(max + 1);
if (referringObjects.length > max) {
fIsMoreThanPreference = true;
referringObjects[max] =
new JDIPlaceholderValue(
(JDIDebugTarget) fRoot.getDebugTarget(),
MessageFormat.format(
JDIDebugModelMessages.JDIReferenceListValue_9, Integer.toString(max)));
}
}
return referringObjects;
} catch (DebugException e) {
JDIDebugPlugin.log(e);
return new IJavaObject[0];
}
}