// Return thread IDs of deadlocked threads or null if any.
// It finds deadlocks involving only monitors if it's a Tiger VM.
// Otherwise, it finds deadlocks involving both monitors and
// the concurrent locks.
public long[] findDeadlockedThreads() throws IOException {
ThreadMXBean tm = getThreadMXBean();
if (supportsLockUsage && tm.isSynchronizerUsageSupported()) {
return tm.findDeadlockedThreads();
} else {
return tm.findMonitorDeadlockedThreads();
}
}
synchronized Result formatSummary() {
Result result = new Result();
ProxyClient proxyClient = vmPanel.getProxyClient();
if (proxyClient.isDead()) {
return null;
}
buf = new StringBuilder();
append("<table cellpadding=1>");
try {
RuntimeMXBean rmBean = proxyClient.getRuntimeMXBean();
CompilationMXBean cmpMBean = proxyClient.getCompilationMXBean();
ThreadMXBean tmBean = proxyClient.getThreadMXBean();
MemoryMXBean memoryBean = proxyClient.getMemoryMXBean();
ClassLoadingMXBean clMBean = proxyClient.getClassLoadingMXBean();
OperatingSystemMXBean osMBean = proxyClient.getOperatingSystemMXBean();
com.sun.management.OperatingSystemMXBean sunOSMBean =
proxyClient.getSunOperatingSystemMXBean();
append("<tr><td colspan=4>");
append("<center><b>" + Messages.SUMMARY_TAB_TAB_NAME + "</b></center>");
String dateTime = headerDateTimeFormat.format(System.currentTimeMillis());
append("<center>" + dateTime + "</center>");
append(newDivider);
{ // VM info
append(newLeftTable);
append(Messages.CONNECTION_NAME, vmPanel.getDisplayName());
append(
Messages.VIRTUAL_MACHINE,
Resources.format(
Messages.SUMMARY_TAB_VM_VERSION, rmBean.getVmName(), rmBean.getVmVersion()));
append(Messages.VENDOR, rmBean.getVmVendor());
append(Messages.NAME, rmBean.getName());
append(endTable);
append(newRightTable);
result.upTime = rmBean.getUptime();
append(Messages.UPTIME, formatTime(result.upTime));
if (sunOSMBean != null) {
result.processCpuTime = sunOSMBean.getProcessCpuTime();
append(Messages.PROCESS_CPU_TIME, formatNanoTime(result.processCpuTime));
}
if (cmpMBean != null) {
append(Messages.JIT_COMPILER, cmpMBean.getName());
append(
Messages.TOTAL_COMPILE_TIME,
cmpMBean.isCompilationTimeMonitoringSupported()
? formatTime(cmpMBean.getTotalCompilationTime())
: Messages.UNAVAILABLE);
} else {
append(Messages.JIT_COMPILER, Messages.UNAVAILABLE);
}
append(endTable);
}
append(newDivider);
{ // Threads and Classes
append(newLeftTable);
int tlCount = tmBean.getThreadCount();
int tdCount = tmBean.getDaemonThreadCount();
int tpCount = tmBean.getPeakThreadCount();
long ttCount = tmBean.getTotalStartedThreadCount();
String[] strings1 =
formatLongs(
tlCount, tpCount,
tdCount, ttCount);
append(Messages.LIVE_THREADS, strings1[0]);
append(Messages.PEAK, strings1[1]);
append(Messages.DAEMON_THREADS, strings1[2]);
append(Messages.TOTAL_THREADS_STARTED, strings1[3]);
append(endTable);
append(newRightTable);
long clCount = clMBean.getLoadedClassCount();
long cuCount = clMBean.getUnloadedClassCount();
long ctCount = clMBean.getTotalLoadedClassCount();
String[] strings2 = formatLongs(clCount, cuCount, ctCount);
append(Messages.CURRENT_CLASSES_LOADED, strings2[0]);
append(Messages.TOTAL_CLASSES_LOADED, strings2[2]);
append(Messages.TOTAL_CLASSES_UNLOADED, strings2[1]);
append(null, "");
append(endTable);
}
append(newDivider);
{ // Memory
MemoryUsage u = memoryBean.getHeapMemoryUsage();
append(newLeftTable);
String[] strings1 = formatKByteStrings(u.getUsed(), u.getMax());
append(Messages.CURRENT_HEAP_SIZE, strings1[0]);
append(Messages.MAXIMUM_HEAP_SIZE, strings1[1]);
append(endTable);
append(newRightTable);
String[] strings2 = formatKByteStrings(u.getCommitted());
append(Messages.COMMITTED_MEMORY, strings2[0]);
append(
Messages.SUMMARY_TAB_PENDING_FINALIZATION_LABEL,
Messages.SUMMARY_TAB_PENDING_FINALIZATION_VALUE,
memoryBean.getObjectPendingFinalizationCount());
append(endTable);
append(newTable);
Collection<GarbageCollectorMXBean> garbageCollectors =
proxyClient.getGarbageCollectorMXBeans();
for (GarbageCollectorMXBean garbageCollectorMBean : garbageCollectors) {
String gcName = garbageCollectorMBean.getName();
long gcCount = garbageCollectorMBean.getCollectionCount();
long gcTime = garbageCollectorMBean.getCollectionTime();
append(
Messages.GARBAGE_COLLECTOR,
Resources.format(
Messages.GC_INFO,
gcName,
gcCount,
(gcTime >= 0) ? formatTime(gcTime) : Messages.UNAVAILABLE),
4);
}
append(endTable);
}
append(newDivider);
{ // Operating System info
append(newLeftTable);
String osName = osMBean.getName();
String osVersion = osMBean.getVersion();
String osArch = osMBean.getArch();
result.nCPUs = osMBean.getAvailableProcessors();
append(Messages.OPERATING_SYSTEM, osName + " " + osVersion);
append(Messages.ARCHITECTURE, osArch);
append(Messages.NUMBER_OF_PROCESSORS, result.nCPUs + "");
if (pathSeparator == null) {
// Must use separator of remote OS, not File.pathSeparator
// from this local VM. In the future, consider using
// RuntimeMXBean to get the remote system property.
pathSeparator = osName.startsWith("Windows ") ? ";" : ":";
}
if (sunOSMBean != null) {
String[] kbStrings1 = formatKByteStrings(sunOSMBean.getCommittedVirtualMemorySize());
String[] kbStrings2 =
formatKByteStrings(
sunOSMBean.getTotalPhysicalMemorySize(),
sunOSMBean.getFreePhysicalMemorySize(),
sunOSMBean.getTotalSwapSpaceSize(),
sunOSMBean.getFreeSwapSpaceSize());
append(Messages.COMMITTED_VIRTUAL_MEMORY, kbStrings1[0]);
append(endTable);
append(newRightTable);
append(Messages.TOTAL_PHYSICAL_MEMORY, kbStrings2[0]);
append(Messages.FREE_PHYSICAL_MEMORY, kbStrings2[1]);
append(Messages.TOTAL_SWAP_SPACE, kbStrings2[2]);
append(Messages.FREE_SWAP_SPACE, kbStrings2[3]);
}
append(endTable);
}
append(newDivider);
{ // VM arguments and paths
append(newTable);
String args = "";
java.util.List<String> inputArguments = rmBean.getInputArguments();
for (String arg : inputArguments) {
args += arg + " ";
}
append(Messages.VM_ARGUMENTS, args, 4);
append(Messages.CLASS_PATH, rmBean.getClassPath(), 4);
append(Messages.LIBRARY_PATH, rmBean.getLibraryPath(), 4);
append(
Messages.BOOT_CLASS_PATH,
rmBean.isBootClassPathSupported() ? rmBean.getBootClassPath() : Messages.UNAVAILABLE,
4);
append(endTable);
}
} catch (IOException e) {
if (JConsole.isDebug()) {
e.printStackTrace();
}
proxyClient.markAsDead();
return null;
} catch (UndeclaredThrowableException e) {
if (JConsole.isDebug()) {
e.printStackTrace();
}
proxyClient.markAsDead();
return null;
}
append("</table>");
result.timeStamp = System.currentTimeMillis();
result.summary = buf.toString();
return result;
}