public static String renderObject(ObjectReference monitor) {
String monitorTypeName;
try {
monitorTypeName = monitor.referenceType().name();
} catch (Throwable e) {
monitorTypeName = "Error getting object type: '" + e.getMessage() + "'";
}
return DebuggerBundle.message(
"threads.export.attribute.label.object-id",
Long.toHexString(monitor.uniqueID()),
monitorTypeName);
}
private static List<ThreadState> buildThreadStates(VirtualMachineProxyImpl vmProxy) {
final List<ThreadReference> threads = vmProxy.getVirtualMachine().allThreads();
final List<ThreadState> result = new ArrayList<ThreadState>();
final Map<String, ThreadState> nameToThreadMap = new HashMap<String, ThreadState>();
final Map<String, String> waitingMap = new HashMap<String, String>(); // key 'waits_for' value
for (ThreadReference threadReference : threads) {
final StringBuilder buffer = new StringBuilder();
boolean hasEmptyStack = true;
final int threadStatus = threadReference.status();
if (threadStatus == ThreadReference.THREAD_STATUS_ZOMBIE) {
continue;
}
final String threadName = threadName(threadReference);
final ThreadState threadState =
new ThreadState(threadName, threadStatusToState(threadStatus));
nameToThreadMap.put(threadName, threadState);
result.add(threadState);
threadState.setJavaThreadState(threadStatusToJavaThreadState(threadStatus));
buffer.append("\"").append(threadName).append("\"");
ReferenceType referenceType = threadReference.referenceType();
if (referenceType != null) {
//noinspection HardCodedStringLiteral
Field daemon = referenceType.fieldByName("daemon");
if (daemon != null) {
Value value = threadReference.getValue(daemon);
if (value instanceof BooleanValue && ((BooleanValue) value).booleanValue()) {
buffer
.append(" ")
.append(DebuggerBundle.message("threads.export.attribute.label.daemon"));
threadState.setDaemon(true);
}
}
//noinspection HardCodedStringLiteral
Field priority = referenceType.fieldByName("priority");
if (priority != null) {
Value value = threadReference.getValue(priority);
if (value instanceof IntegerValue) {
buffer
.append(" ")
.append(
DebuggerBundle.message(
"threads.export.attribute.label.priority",
((IntegerValue) value).intValue()));
}
}
Field tid = referenceType.fieldByName("tid");
if (tid != null) {
Value value = threadReference.getValue(tid);
if (value instanceof LongValue) {
buffer
.append(" ")
.append(
DebuggerBundle.message(
"threads.export.attribute.label.tid",
Long.toHexString(((LongValue) value).longValue())));
buffer.append(" nid=NA");
}
}
}
// ThreadGroupReference groupReference = threadReference.threadGroup();
// if (groupReference != null) {
// buffer.append(", ").append(DebuggerBundle.message("threads.export.attribute.label.group",
// groupReference.name()));
// }
final String state = threadState.getState();
if (state != null) {
buffer.append(" ").append(state);
}
buffer.append("\n java.lang.Thread.State: ").append(threadState.getJavaThreadState());
try {
if (vmProxy.canGetOwnedMonitorInfo() && vmProxy.canGetMonitorInfo()) {
List<ObjectReference> list = threadReference.ownedMonitors();
for (ObjectReference reference : list) {
if (!vmProxy.canGetMonitorFrameInfo()) { // java 5 and earlier
buffer.append("\n\t ").append(renderLockedObject(reference));
}
final List<ThreadReference> waiting = reference.waitingThreads();
for (ThreadReference thread : waiting) {
final String waitingThreadName = threadName(thread);
waitingMap.put(waitingThreadName, threadName);
buffer
.append("\n\t ")
.append(
DebuggerBundle.message(
"threads.export.attribute.label.blocks.thread", waitingThreadName));
}
}
}
ObjectReference waitedMonitor =
vmProxy.canGetCurrentContendedMonitor()
? threadReference.currentContendedMonitor()
: null;
if (waitedMonitor != null) {
if (vmProxy.canGetMonitorInfo()) {
ThreadReference waitedMonitorOwner = waitedMonitor.owningThread();
if (waitedMonitorOwner != null) {
final String monitorOwningThreadName = threadName(waitedMonitorOwner);
waitingMap.put(threadName, monitorOwningThreadName);
buffer
.append("\n\t ")
.append(
DebuggerBundle.message(
"threads.export.attribute.label.waiting.for.thread",
monitorOwningThreadName,
renderObject(waitedMonitor)));
}
}
}
final List<StackFrame> frames = threadReference.frames();
hasEmptyStack = frames.size() == 0;
final TIntObjectHashMap<List<ObjectReference>> lockedAt =
new TIntObjectHashMap<List<ObjectReference>>();
if (vmProxy.canGetMonitorFrameInfo()) {
for (MonitorInfo info : threadReference.ownedMonitorsAndFrames()) {
final int stackDepth = info.stackDepth();
List<ObjectReference> monitors;
if ((monitors = lockedAt.get(stackDepth)) == null) {
lockedAt.put(stackDepth, monitors = new SmartList<ObjectReference>());
}
monitors.add(info.monitor());
}
}
for (int i = 0, framesSize = frames.size(); i < framesSize; i++) {
final StackFrame stackFrame = frames.get(i);
try {
final Location location = stackFrame.location();
buffer.append("\n\t ").append(renderLocation(location));
final List<ObjectReference> monitors = lockedAt.get(i);
if (monitors != null) {
for (ObjectReference monitor : monitors) {
buffer.append("\n\t - ").append(renderLockedObject(monitor));
}
}
} catch (InvalidStackFrameException e) {
buffer.append("\n\t Invalid stack frame: ").append(e.getMessage());
}
}
} catch (IncompatibleThreadStateException e) {
buffer
.append("\n\t ")
.append(DebuggerBundle.message("threads.export.attribute.error.incompatible.state"));
}
threadState.setStackTrace(buffer.toString(), hasEmptyStack);
ThreadDumpParser.inferThreadStateDetail(threadState);
}
for (String waiting : waitingMap.keySet()) {
final ThreadState waitingThread = nameToThreadMap.get(waiting);
final ThreadState awaitedThread = nameToThreadMap.get(waitingMap.get(waiting));
awaitedThread.addWaitingThread(waitingThread);
}
// detect simple deadlocks
for (ThreadState thread : result) {
for (ThreadState awaitingThread : thread.getAwaitingThreads()) {
if (awaitingThread.isAwaitedBy(thread)) {
thread.addDeadlockedThread(awaitingThread);
awaitingThread.addDeadlockedThread(thread);
}
}
}
ThreadDumpParser.sortThreads(result);
return result;
}