public void outputResultsAsXml(PrintStream where) throws SnapshotException {
out = where;
out.println("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
out.println("<?xml-stylesheet type=\"text/xsl\" href=\"leaks.xsl\"?>");
out.println("<leaks>");
for (int loader : clDominationFlags.getAllKeys()) {
if (clDominationFlags.get(loader)) {
IObject loaderObj = snapshot.getObject(loader);
out.println(
String.format(
"<leak>%n<classloader>%s</classloader>%n<id>0x%s</id>",
loaderObj.getClazz().getName(), Long.toString(loaderObj.getObjectAddress(), 16)));
printPathToGCRoot(snapshot, loader, true);
out.println("</leak>");
}
}
out.println("</leaks>");
}
public ClassloaderLeakDetector(File f) throws Exception {
IProgressListener listener = new ConsoleProgressListener(System.out);
SnapshotFactory sf = new SnapshotFactory();
snapshot = sf.openSnapshot(f, new HashMap<String, String>(), listener);
int[] retainedSet = snapshot.getRetainedSet(snapshot.getGCRoots(), listener);
for (int obj : retainedSet) {
if (snapshot.isClass(obj)) continue;
int clId = snapshot.getClassOf(obj).getClassLoaderId();
if (snapshot.getObject(clId).getClazz().getName().startsWith("sun.")) {
continue;
}
Boolean dominatedAllSoFar = clDominationFlags.get(clId);
if (dominatedAllSoFar != null && !dominatedAllSoFar) continue;
boolean clDominates = firstObjectDominatesSecond(clId, obj, snapshot);
if (!clDominates) {
boolean objDominates = firstObjectDominatesSecond(obj, clId, snapshot);
if (objDominates) {
// System.out.println(String.format(
// "Classloader %s IS NOT dominating: %s, but viceversa is true!", snapshot
// .getObject(clId).getTechnicalName(), snapshot
// .getObject(obj).getTechnicalName()));
// printPathToGCRoot(snapshot, obj, false);
clDominates = true;
}
}
if (dominatedAllSoFar == null) {
clDominationFlags.put(clId, clDominates);
} else {
// If classloader is not dominating the object and
// it has been dominating everything it loaded so far
// Then this classloader is no longer dominating.
if (!clDominates && dominatedAllSoFar) {
clDominationFlags.put(clId, Boolean.FALSE);
}
}
}
}
