/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// XXX TODO: Source code line length
// XXX TODO: More JavaDoc
// XXX Optional: Add support for com.sun.management specific mbean
// (http://docs.oracle.com/javase/7/docs/jre/api/management/extension/index.html)
// XXX Optional: Wire additional public static methods implemented here
// to the manager (think about manager access roles!)
// setLoggerLevel(),
// setVerboseClassLoading(),
// setThreadContentionMonitoringEnabled(),
// setThreadCpuTimeEnabled(),
// resetPeakThreadCount(),
// setVerboseGarbageCollection()
// gc(),
// resetPeakUsage(),
// setUsageThreshold(),
// setCollectionUsageThreshold()
package org.apache.tomcat.util;
import java.lang.management.ClassLoadingMXBean;
import java.lang.management.CompilationMXBean;
import java.lang.management.GarbageCollectorMXBean;
import java.lang.management.LockInfo;
import java.lang.management.ManagementFactory;
import java.lang.management.MemoryMXBean;
import java.lang.management.MemoryManagerMXBean;
import java.lang.management.MemoryPoolMXBean;
import java.lang.management.MemoryUsage;
import java.lang.management.MonitorInfo;
import java.lang.management.OperatingSystemMXBean;
import java.lang.management.PlatformLoggingMXBean;
import java.lang.management.RuntimeMXBean;
import java.lang.management.ThreadInfo;
import java.lang.management.ThreadMXBean;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Date;
import java.util.Enumeration;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import org.apache.juli.logging.Log;
import org.apache.juli.logging.LogFactory;
import org.apache.tomcat.util.res.StringManager;
public class Diagnostics {
private static final String PACKAGE = "org.apache.tomcat.util";
private static final StringManager sm = StringManager.getManager(PACKAGE);
private static final String INDENT1 = " ";
private static final String INDENT2 = " ";
private static final String INDENT3 = " ";
private static final String CRLF = " ";
private static final String vminfoSystemProperty = "java.vm.info";
private static final Log log = LogFactory.getLog(Diagnostics.class);
private static final SimpleDateFormat timeformat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
/* Some platform MBeans */
private static final ClassLoadingMXBean classLoadingMXBean = ManagementFactory.getClassLoadingMXBean();
private static final CompilationMXBean compilationMXBean = ManagementFactory.getCompilationMXBean();
private static final OperatingSystemMXBean operatingSystemMXBean = ManagementFactory.getOperatingSystemMXBean();
private static final RuntimeMXBean runtimeMXBean = ManagementFactory.getRuntimeMXBean();
private static final ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
// XXX Not sure whether the following MBeans should better
// be retrieved on demand, i.e. whether they can change
// dynamically in the MBeanServer.
private static final PlatformLoggingMXBean loggingMXBean =
ManagementFactory.getPlatformMXBean(PlatformLoggingMXBean.class);
private static final MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
private static final List<GarbageCollectorMXBean> garbageCollectorMXBeans =
ManagementFactory.getGarbageCollectorMXBeans();
private static final List<MemoryManagerMXBean> memoryManagerMXBeans = ManagementFactory.getMemoryManagerMXBeans();
private static final List<MemoryPoolMXBean> memoryPoolMXBeans = ManagementFactory.getMemoryPoolMXBeans();
/**
* Check whether thread contention monitoring is enabled.
*
* @return true if thread contention monitoring is enabled
*/
public static boolean isThreadContentionMonitoringEnabled() {
return threadMXBean.isThreadContentionMonitoringEnabled();
}
/**
* Enable or disable thread contention monitoring via the ThreadMxMXBean.
*
* @param enable whether to enable thread contention monitoring
*/
public static void setThreadContentionMonitoringEnabled(boolean enable) {
threadMXBean.setThreadContentionMonitoringEnabled(enable);
boolean checkValue = threadMXBean.isThreadContentionMonitoringEnabled();
if (enable != checkValue) {
log.error(sm.getString("diagnostics.setPropertyFail", "threadContentionMonitoringEnabled",
Boolean.valueOf(enable), Boolean.valueOf(checkValue)));
}
}
/**
* Check whether thread cpu time measurement is enabled.
*
* @return true if thread cpu time measurement is enabled
*/
public static boolean isThreadCpuTimeEnabled() {
return threadMXBean.isThreadCpuTimeEnabled();
}
/**
* Enable or disable thread cpu time measurement via the ThreadMxMXBean.
*
* @param enable whether to enable thread cpu time measurement
*/
public static void setThreadCpuTimeEnabled(boolean enable) {
threadMXBean.setThreadCpuTimeEnabled(enable);
boolean checkValue = threadMXBean.isThreadCpuTimeEnabled();
if (enable != checkValue) {
log.error(sm.getString("diagnostics.setPropertyFail", "threadCpuTimeEnabled", Boolean.valueOf(enable),
Boolean.valueOf(checkValue)));
}
}
/**
* Reset peak thread count in ThreadMXBean
*/
public static void resetPeakThreadCount() {
threadMXBean.resetPeakThreadCount();
}
/**
* Set verbose class loading
*
* @param verbose whether to enable verbose class loading
*/
public static void setVerboseClassLoading(boolean verbose) {
classLoadingMXBean.setVerbose(verbose);
boolean checkValue = classLoadingMXBean.isVerbose();
if (verbose != checkValue) {
log.error(sm.getString("diagnostics.setPropertyFail", "verboseClassLoading", Boolean.valueOf(verbose),
Boolean.valueOf(checkValue)));
}
}
/**
* Set logger level
*
* @param loggerName the name of the logger
* @param levelName the level to set
*/
public static void setLoggerLevel(String loggerName, String levelName) {
loggingMXBean.setLoggerLevel(loggerName, levelName);
String checkValue = loggingMXBean.getLoggerLevel(loggerName);
if (!checkValue.equals(levelName)) {
String propertyName = "loggerLevel[" + loggerName + "]";
log.error(sm.getString("diagnostics.setPropertyFail", propertyName, levelName, checkValue));
}
}
/**
* Set verbose garbage collection logging
*
* @param verbose whether to enable verbose gc logging
*/
public static void setVerboseGarbageCollection(boolean verbose) {
memoryMXBean.setVerbose(verbose);
boolean checkValue = memoryMXBean.isVerbose();
if (verbose != checkValue) {
log.error(sm.getString("diagnostics.setPropertyFail", "verboseGarbageCollection", Boolean.valueOf(verbose),
Boolean.valueOf(checkValue)));
}
}
/**
* Initiate garbage collection via MX Bean
*/
public static void gc() {
memoryMXBean.gc();
}
/**
* Reset peak memory usage data in MemoryPoolMXBean
*
* @param name name of the MemoryPoolMXBean or "all"
*/
public static void resetPeakUsage(String name) {
for (MemoryPoolMXBean mbean : memoryPoolMXBeans) {
if (name.equals("all") || name.equals(mbean.getName())) {
mbean.resetPeakUsage();
}
}
}
/**
* Set usage threshold in MemoryPoolMXBean
*
* @param name name of the MemoryPoolMXBean
* @param threshold the threshold to set
*
* @return true if setting the threshold succeeded
*/
public static boolean setUsageThreshold(String name, long threshold) {
for (MemoryPoolMXBean mbean : memoryPoolMXBeans) {
if (name.equals(mbean.getName())) {
try {
mbean.setUsageThreshold(threshold);
return true;
} catch (IllegalArgumentException | UnsupportedOperationException ex) {
// IGNORE
}
return false;
}
}
return false;
}
/**
* Set collection usage threshold in MemoryPoolMXBean
*
* @param name name of the MemoryPoolMXBean
* @param threshold the collection threshold to set
*
* @return true if setting the threshold succeeded
*/
public static boolean setCollectionUsageThreshold(String name, long threshold) {
for (MemoryPoolMXBean mbean : memoryPoolMXBeans) {
if (name.equals(mbean.getName())) {
try {
mbean.setCollectionUsageThreshold(threshold);
return true;
} catch (IllegalArgumentException | UnsupportedOperationException ex) {
// IGNORE
}
return false;
}
}
return false;
}
/**
* Formats the thread dump header for one thread.
*
* @param ti the ThreadInfo describing the thread
*
* @return the formatted thread dump header
*/
private static String getThreadDumpHeader(ThreadInfo ti) {
StringBuilder sb = new StringBuilder();
sb.append("\"").append(ti.getThreadName()).append("\"");
sb.append(" Id=").append(ti.getThreadId());
sb.append(" cpu=").append(threadMXBean.getThreadCpuTime(ti.getThreadId())).append(" ns");
sb.append(" usr=").append(threadMXBean.getThreadUserTime(ti.getThreadId())).append(" ns");
sb.append(" blocked ").append(ti.getBlockedCount()).append(" for ").append(ti.getBlockedTime()).append(" ms");
sb.append(" waited ").append(ti.getWaitedCount()).append(" for ").append(ti.getWaitedTime()).append(" ms");
if (ti.isSuspended()) {
sb.append(" (suspended)");
}
if (ti.isInNative()) {
sb.append(" (running in native)");
}
sb.append(CRLF);
sb.append(INDENT3 + "java.lang.Thread.State: ").append(ti.getThreadState());
sb.append(CRLF);
return sb.toString();
}
/**
* Formats the thread dump for one thread.
*
* @param ti the ThreadInfo describing the thread
*
* @return the formatted thread dump
*/
private static String getThreadDump(ThreadInfo ti) {
StringBuilder sb = new StringBuilder(getThreadDumpHeader(ti));
for (LockInfo li : ti.getLockedSynchronizers()) {
sb.append(INDENT2 + "locks ").append(li.toString()).append(CRLF);
}
boolean start = true;
StackTraceElement[] stes = ti.getStackTrace();
Object[] monitorDepths = new Object[stes.length];
MonitorInfo[] mis = ti.getLockedMonitors();
for (MonitorInfo monitorInfo : mis) {
monitorDepths[monitorInfo.getLockedStackDepth()] = monitorInfo;
}
for (int i = 0; i < stes.length; i++) {
StackTraceElement ste = stes[i];
sb.append(INDENT2 + "at ").append(ste.toString()).append(CRLF);
if (start) {
if (ti.getLockName() != null) {
sb.append(INDENT2 + "- waiting on (a ").append(ti.getLockName()).append(")");
if (ti.getLockOwnerName() != null) {
sb.append(" owned by ").append(ti.getLockOwnerName()).append(" Id=")
.append(ti.getLockOwnerId());
}
sb.append(CRLF);
}
start = false;
}
if (monitorDepths[i] != null) {
MonitorInfo mi = (MonitorInfo) monitorDepths[i];
sb.append(INDENT2 + "- locked (a ").append(mi.toString()).append(")").append(" index ");
sb.append(mi.getLockedStackDepth()).append(" frame ").append(mi.getLockedStackFrame().toString());
sb.append(CRLF);
}
}
return sb.toString();
}
/**
* Formats the thread dump for a list of threads.
*
* @param tinfos the ThreadInfo array describing the thread list
*
* @return the formatted thread dump
*/
private static String getThreadDump(ThreadInfo[] tinfos) {
StringBuilder sb = new StringBuilder();
for (ThreadInfo tinfo : tinfos) {
sb.append(getThreadDump(tinfo));
sb.append(CRLF);
}
return sb.toString();
}
/**
* Check if any threads are deadlocked. If any, print the thread dump for those threads.
*
* @return a deadlock message and the formatted thread dump of the deadlocked threads
*/
public static String findDeadlock() {
long[] ids = threadMXBean.findDeadlockedThreads();
if (ids != null) {
ThreadInfo[] tinfos = threadMXBean.getThreadInfo(threadMXBean.findDeadlockedThreads(), true, true);
if (tinfos != null) {
return sm.getString("diagnostics.deadlockFound") + CRLF + getThreadDump(tinfos);
}
}
return "";
}
/**
* Retrieves a formatted JVM thread dump. The default StringManager will be used.
*
* @return the formatted JVM thread dump
*/
public static String getThreadDump() {
return getThreadDump(sm);
}
/**
* Retrieves a formatted JVM thread dump. The given list of locales will be used to retrieve a StringManager.
*
* @param requestedLocales list of locales to use
*
* @return the formatted JVM thread dump
*/
public static String getThreadDump(Enumeration<Locale> requestedLocales) {
return getThreadDump(StringManager.getManager(PACKAGE, requestedLocales));
}
/**
* Retrieve a JVM thread dump formatted using the given StringManager.
*
* @param requestedSm the StringManager to use
*
* @return the formatted JVM thread dump
*/
public static String getThreadDump(StringManager requestedSm) {
StringBuilder sb = new StringBuilder();
synchronized (timeformat) {
sb.append(timeformat.format(new Date()));
}
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.threadDumpTitle"));
sb.append(' ');
sb.append(runtimeMXBean.getVmName());
sb.append(" (");
sb.append(runtimeMXBean.getVmVersion());
String vminfo = System.getProperty(vminfoSystemProperty);
if (vminfo != null) {
sb.append(" ").append(vminfo);
}
sb.append("):" + CRLF);
sb.append(CRLF);
ThreadInfo[] tis = threadMXBean.dumpAllThreads(true, true);
sb.append(getThreadDump(tis));
sb.append(findDeadlock());
return sb.toString();
}
/**
* Format contents of a MemoryUsage object.
*
* @param name a text prefix used in formatting
* @param usage the MemoryUsage object to format
*
* @return the formatted contents
*/
private static String formatMemoryUsage(String name, MemoryUsage usage) {
if (usage != null) {
StringBuilder sb = new StringBuilder();
sb.append(INDENT1).append(name).append(" init: ").append(usage.getInit()).append(CRLF);
sb.append(INDENT1).append(name).append(" used: ").append(usage.getUsed()).append(CRLF);
sb.append(INDENT1).append(name).append(" committed: ").append(usage.getCommitted()).append(CRLF);
sb.append(INDENT1).append(name).append(" max: ").append(usage.getMax()).append(CRLF);
return sb.toString();
}
return "";
}
/**
* Retrieves a formatted JVM information text. The default StringManager will be used.
*
* @return the formatted JVM information text
*/
public static String getVMInfo() {
return getVMInfo(sm);
}
/**
* Retrieves a formatted JVM information text. The given list of locales will be used to retrieve a StringManager.
*
* @param requestedLocales list of locales to use
*
* @return the formatted JVM information text
*/
public static String getVMInfo(Enumeration<Locale> requestedLocales) {
return getVMInfo(StringManager.getManager(PACKAGE, requestedLocales));
}
/**
* Retrieve a JVM information text formatted using the given StringManager.
*
* @param requestedSm the StringManager to use
*
* @return the formatted JVM information text
*/
@SuppressWarnings("deprecation")
public static String getVMInfo(StringManager requestedSm) {
StringBuilder sb = new StringBuilder();
synchronized (timeformat) {
sb.append(timeformat.format(new Date()));
}
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.vmInfoRuntime"));
sb.append(":" + CRLF);
sb.append(INDENT1 + "vmName: ").append(runtimeMXBean.getVmName()).append(CRLF);
sb.append(INDENT1 + "vmVersion: ").append(runtimeMXBean.getVmVersion()).append(CRLF);
sb.append(INDENT1 + "vmVendor: ").append(runtimeMXBean.getVmVendor()).append(CRLF);
sb.append(INDENT1 + "specName: ").append(runtimeMXBean.getSpecName()).append(CRLF);
sb.append(INDENT1 + "specVersion: ").append(runtimeMXBean.getSpecVersion()).append(CRLF);
sb.append(INDENT1 + "specVendor: ").append(runtimeMXBean.getSpecVendor()).append(CRLF);
sb.append(INDENT1 + "managementSpecVersion: ").append(runtimeMXBean.getManagementSpecVersion()).append(CRLF);
sb.append(INDENT1 + "name: ").append(runtimeMXBean.getName()).append(CRLF);
sb.append(INDENT1 + "startTime: ").append(runtimeMXBean.getStartTime()).append(CRLF);
sb.append(INDENT1 + "uptime: ").append(runtimeMXBean.getUptime()).append(CRLF);
sb.append(INDENT1 + "isBootClassPathSupported: ").append(runtimeMXBean.isBootClassPathSupported()).append(CRLF);
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.vmInfoOs"));
sb.append(":" + CRLF);
sb.append(INDENT1 + "name: ").append(operatingSystemMXBean.getName()).append(CRLF);
sb.append(INDENT1 + "version: ").append(operatingSystemMXBean.getVersion()).append(CRLF);
sb.append(INDENT1 + "architecture: ").append(operatingSystemMXBean.getArch()).append(CRLF);
sb.append(INDENT1 + "availableProcessors: ").append(operatingSystemMXBean.getAvailableProcessors())
.append(CRLF);
sb.append(INDENT1 + "systemLoadAverage: ").append(operatingSystemMXBean.getSystemLoadAverage()).append(CRLF);
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.vmInfoThreadMxBean"));
sb.append(":" + CRLF);
sb.append(INDENT1 + "isCurrentThreadCpuTimeSupported: ").append(threadMXBean.isCurrentThreadCpuTimeSupported())
.append(CRLF);
sb.append(INDENT1 + "isThreadCpuTimeSupported: ").append(threadMXBean.isThreadCpuTimeSupported()).append(CRLF);
sb.append(INDENT1 + "isThreadCpuTimeEnabled: ").append(threadMXBean.isThreadCpuTimeEnabled()).append(CRLF);
sb.append(INDENT1 + "isObjectMonitorUsageSupported: ").append(threadMXBean.isObjectMonitorUsageSupported())
.append(CRLF);
sb.append(INDENT1 + "isSynchronizerUsageSupported: ").append(threadMXBean.isSynchronizerUsageSupported())
.append(CRLF);
sb.append(INDENT1 + "isThreadContentionMonitoringSupported: ")
.append(threadMXBean.isThreadContentionMonitoringSupported()).append(CRLF);
sb.append(INDENT1 + "isThreadContentionMonitoringEnabled: ")
.append(threadMXBean.isThreadContentionMonitoringEnabled()).append(CRLF);
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.vmInfoThreadCounts"));
sb.append(":" + CRLF);
sb.append(INDENT1 + "daemon: ").append(threadMXBean.getDaemonThreadCount()).append(CRLF);
sb.append(INDENT1 + "total: ").append(threadMXBean.getThreadCount()).append(CRLF);
sb.append(INDENT1 + "peak: ").append(threadMXBean.getPeakThreadCount()).append(CRLF);
sb.append(INDENT1 + "totalStarted: ").append(threadMXBean.getTotalStartedThreadCount()).append(CRLF);
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.vmInfoStartup"));
sb.append(":" + CRLF);
for (String arg : runtimeMXBean.getInputArguments()) {
sb.append(INDENT1).append(arg).append(CRLF);
}
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.vmInfoPath"));
sb.append(":" + CRLF);
if (runtimeMXBean.isBootClassPathSupported()) {
sb.append(INDENT1 + "bootClassPath: ").append(runtimeMXBean.getBootClassPath()).append(CRLF);
}
sb.append(INDENT1 + "classPath: ").append(runtimeMXBean.getClassPath()).append(CRLF);
sb.append(INDENT1 + "libraryPath: ").append(runtimeMXBean.getLibraryPath()).append(CRLF);
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.vmInfoClassLoading"));
sb.append(":" + CRLF);
sb.append(INDENT1 + "loaded: ").append(classLoadingMXBean.getLoadedClassCount()).append(CRLF);
sb.append(INDENT1 + "unloaded: ").append(classLoadingMXBean.getUnloadedClassCount()).append(CRLF);
sb.append(INDENT1 + "totalLoaded: ").append(classLoadingMXBean.getTotalLoadedClassCount()).append(CRLF);
sb.append(INDENT1 + "isVerbose: ").append(classLoadingMXBean.isVerbose()).append(CRLF);
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.vmInfoClassCompilation"));
sb.append(":" + CRLF);
sb.append(INDENT1 + "name: ").append(compilationMXBean.getName()).append(CRLF);
sb.append(INDENT1 + "totalCompilationTime: ").append(compilationMXBean.getTotalCompilationTime()).append(CRLF);
sb.append(INDENT1 + "isCompilationTimeMonitoringSupported: ")
.append(compilationMXBean.isCompilationTimeMonitoringSupported()).append(CRLF);
sb.append(CRLF);
for (MemoryManagerMXBean mbean : memoryManagerMXBeans) {
sb.append(requestedSm.getString("diagnostics.vmInfoMemoryManagers", mbean.getName()));
sb.append(":" + CRLF);
sb.append(INDENT1 + "isValid: ").append(mbean.isValid()).append(CRLF);
sb.append(INDENT1 + "mbean.getMemoryPoolNames: " + CRLF);
String[] names = mbean.getMemoryPoolNames();
Arrays.sort(names);
for (String name : names) {
sb.append(INDENT2).append(name).append(CRLF);
}
sb.append(CRLF);
}
for (GarbageCollectorMXBean mbean : garbageCollectorMXBeans) {
sb.append(requestedSm.getString("diagnostics.vmInfoGarbageCollectors", mbean.getName()));
sb.append(":" + CRLF);
sb.append(INDENT1 + "isValid: ").append(mbean.isValid()).append(CRLF);
sb.append(INDENT1 + "mbean.getMemoryPoolNames: " + CRLF);
String[] names = mbean.getMemoryPoolNames();
Arrays.sort(names);
for (String name : names) {
sb.append(INDENT2).append(name).append(CRLF);
}
sb.append(INDENT1 + "getCollectionCount: ").append(mbean.getCollectionCount()).append(CRLF);
sb.append(INDENT1 + "getCollectionTime: ").append(mbean.getCollectionTime()).append(CRLF);
sb.append(CRLF);
}
sb.append(requestedSm.getString("diagnostics.vmInfoMemory"));
sb.append(":" + CRLF);
sb.append(INDENT1 + "isVerbose: ").append(memoryMXBean.isVerbose()).append(CRLF);
sb.append(INDENT1 + "getObjectPendingFinalizationCount: ")
.append(memoryMXBean.getObjectPendingFinalizationCount()).append(CRLF);
sb.append(formatMemoryUsage("heap", memoryMXBean.getHeapMemoryUsage()));
sb.append(formatMemoryUsage("non-heap", memoryMXBean.getNonHeapMemoryUsage()));
sb.append(CRLF);
for (MemoryPoolMXBean mbean : memoryPoolMXBeans) {
sb.append(requestedSm.getString("diagnostics.vmInfoMemoryPools", mbean.getName()));
sb.append(":" + CRLF);
sb.append(INDENT1 + "isValid: ").append(mbean.isValid()).append(CRLF);
sb.append(INDENT1 + "getType: ").append(mbean.getType()).append(CRLF);
sb.append(INDENT1 + "mbean.getMemoryManagerNames: " + CRLF);
String[] names = mbean.getMemoryManagerNames();
Arrays.sort(names);
for (String name : names) {
sb.append(INDENT2).append(name).append(CRLF);
}
sb.append(INDENT1 + "isUsageThresholdSupported: ").append(mbean.isUsageThresholdSupported()).append(CRLF);
try {
sb.append(INDENT1 + "isUsageThresholdExceeded: ").append(mbean.isUsageThresholdExceeded()).append(CRLF);
} catch (UnsupportedOperationException ex) {
// IGNORE
}
sb.append(INDENT1 + "isCollectionUsageThresholdSupported: ")
.append(mbean.isCollectionUsageThresholdSupported()).append(CRLF);
try {
sb.append(INDENT1 + "isCollectionUsageThresholdExceeded: ")
.append(mbean.isCollectionUsageThresholdExceeded()).append(CRLF);
} catch (UnsupportedOperationException ex) {
// IGNORE
}
try {
sb.append(INDENT1 + "getUsageThreshold: ").append(mbean.getUsageThreshold()).append(CRLF);
} catch (UnsupportedOperationException ex) {
// IGNORE
}
try {
sb.append(INDENT1 + "getUsageThresholdCount: ").append(mbean.getUsageThresholdCount()).append(CRLF);
} catch (UnsupportedOperationException ex) {
// IGNORE
}
try {
sb.append(INDENT1 + "getCollectionUsageThreshold: ").append(mbean.getCollectionUsageThreshold())
.append(CRLF);
} catch (UnsupportedOperationException ex) {
// IGNORE
}
try {
sb.append(INDENT1 + "getCollectionUsageThresholdCount: ")
.append(mbean.getCollectionUsageThresholdCount()).append(CRLF);
} catch (UnsupportedOperationException ex) {
// IGNORE
}
sb.append(formatMemoryUsage("current", mbean.getUsage()));
sb.append(formatMemoryUsage("collection", mbean.getCollectionUsage()));
sb.append(formatMemoryUsage("peak", mbean.getPeakUsage()));
sb.append(CRLF);
}
sb.append(requestedSm.getString("diagnostics.vmInfoSystem"));
sb.append(":" + CRLF);
Map<String,String> props = runtimeMXBean.getSystemProperties();
ArrayList<String> keys = new ArrayList<>(props.keySet());
Collections.sort(keys);
for (String prop : keys) {
sb.append(INDENT1).append(prop).append(": ").append(props.get(prop)).append(CRLF);
}
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.vmInfoLogger"));
sb.append(":" + CRLF);
List<String> loggers = loggingMXBean.getLoggerNames();
Collections.sort(loggers);
for (String logger : loggers) {
sb.append(INDENT1).append(logger).append(": level=").append(loggingMXBean.getLoggerLevel(logger));
sb.append(", parent=").append(loggingMXBean.getParentLoggerName(logger)).append(CRLF);
}
sb.append(CRLF);
return sb.toString();
}
}