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JDK 17 jdk.jfr.jmod - JFR Module
JDK 17 jdk.jfr.jmod is the JMOD file for JDK 17 JFR module.
JDK 17 JFR module compiled class files are stored in \fyicenter\jdk-17.0.5\jmods\jdk.jfr.jmod.
JDK 17 JFR module compiled class files are also linked and stored in the \fyicenter\jdk-17.0.5\lib\modules JImage file.
JDK 17 JFR module source code files are stored in \fyicenter\jdk-17.0.5\lib\src.zip\jdk.jfr.
You can click and view the content of each source code file in the list below.
✍: FYIcenter
⏎ jdk/jfr/internal/instrument/JDKEvents.java
/* * Copyright (c) 2016, 2021, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package jdk.jfr.internal.instrument; import java.util.ArrayList; import java.util.List; import java.util.Map; import jdk.jfr.Event; import jdk.jfr.events.ActiveRecordingEvent; import jdk.jfr.events.ActiveSettingEvent; import jdk.jfr.events.ContainerIOUsageEvent; import jdk.jfr.events.ContainerConfigurationEvent; import jdk.jfr.events.ContainerCPUUsageEvent; import jdk.jfr.events.ContainerCPUThrottlingEvent; import jdk.jfr.events.ContainerMemoryUsageEvent; import jdk.jfr.events.DirectBufferStatisticsEvent; import jdk.jfr.events.ErrorThrownEvent; import jdk.jfr.events.ExceptionStatisticsEvent; import jdk.jfr.events.ExceptionThrownEvent; import jdk.jfr.events.FileForceEvent; import jdk.jfr.events.FileReadEvent; import jdk.jfr.events.FileWriteEvent; import jdk.jfr.events.DeserializationEvent; import jdk.jfr.events.ProcessStartEvent; import jdk.jfr.events.SecurityPropertyModificationEvent; import jdk.jfr.events.SocketReadEvent; import jdk.jfr.events.SocketWriteEvent; import jdk.jfr.events.TLSHandshakeEvent; import jdk.jfr.events.X509CertificateEvent; import jdk.jfr.events.X509ValidationEvent; import jdk.jfr.internal.JVM; import jdk.jfr.internal.LogLevel; import jdk.jfr.internal.LogTag; import jdk.jfr.internal.Logger; import jdk.jfr.internal.RequestEngine; import jdk.jfr.internal.SecuritySupport; import jdk.internal.platform.Container; import jdk.internal.platform.Metrics; public final class JDKEvents { private static final Class<?>[] mirrorEventClasses = { DeserializationEvent.class, ProcessStartEvent.class, SecurityPropertyModificationEvent.class, TLSHandshakeEvent.class, X509CertificateEvent.class, X509ValidationEvent.class }; private static final Class<?>[] eventClasses = { FileForceEvent.class, FileReadEvent.class, FileWriteEvent.class, SocketReadEvent.class, SocketWriteEvent.class, ExceptionThrownEvent.class, ExceptionStatisticsEvent.class, ErrorThrownEvent.class, ActiveSettingEvent.class, ActiveRecordingEvent.class, jdk.internal.event.DeserializationEvent.class, jdk.internal.event.ProcessStartEvent.class, jdk.internal.event.SecurityPropertyModificationEvent.class, jdk.internal.event.TLSHandshakeEvent.class, jdk.internal.event.X509CertificateEvent.class, jdk.internal.event.X509ValidationEvent.class, DirectBufferStatisticsEvent.class }; // This is a list of the classes with instrumentation code that should be applied. private static final Class<?>[] instrumentationClasses = new Class<?>[] { FileInputStreamInstrumentor.class, FileOutputStreamInstrumentor.class, RandomAccessFileInstrumentor.class, FileChannelImplInstrumentor.class, SocketInputStreamInstrumentor.class, SocketOutputStreamInstrumentor.class, SocketChannelImplInstrumentor.class }; private static final Class<?>[] targetClasses = new Class<?>[instrumentationClasses.length]; private static final JVM jvm = JVM.getJVM(); private static final Runnable emitExceptionStatistics = JDKEvents::emitExceptionStatistics; private static final Runnable emitDirectBufferStatistics = JDKEvents::emitDirectBufferStatistics; private static final Runnable emitContainerConfiguration = JDKEvents::emitContainerConfiguration; private static final Runnable emitContainerCPUUsage = JDKEvents::emitContainerCPUUsage; private static final Runnable emitContainerCPUThrottling = JDKEvents::emitContainerCPUThrottling; private static final Runnable emitContainerMemoryUsage = JDKEvents::emitContainerMemoryUsage; private static final Runnable emitContainerIOUsage = JDKEvents::emitContainerIOUsage; private static Metrics containerMetrics = null; private static boolean initializationTriggered; @SuppressWarnings("unchecked") public synchronized static void initialize() { try { if (initializationTriggered == false) { for (Class<?> mirrorEventClass : mirrorEventClasses) { SecuritySupport.registerMirror(((Class<? extends Event>)mirrorEventClass)); } for (Class<?> eventClass : eventClasses) { SecuritySupport.registerEvent((Class<? extends Event>) eventClass); } RequestEngine.addTrustedJDKHook(ExceptionStatisticsEvent.class, emitExceptionStatistics); RequestEngine.addTrustedJDKHook(DirectBufferStatisticsEvent.class, emitDirectBufferStatistics); initializeContainerEvents(); initializationTriggered = true; } } catch (Exception e) { Logger.log(LogTag.JFR_SYSTEM, LogLevel.WARN, "Could not initialize JDK events. " + e.getMessage()); } } public static void addInstrumentation() { try { List<Class<?>> list = new ArrayList<>(); for (int i = 0; i < instrumentationClasses.length; i++) { JIInstrumentationTarget tgt = instrumentationClasses[i].getAnnotation(JIInstrumentationTarget.class); Class<?> clazz = Class.forName(tgt.value()); targetClasses[i] = clazz; list.add(clazz); } list.add(java.lang.Throwable.class); list.add(java.lang.Error.class); Logger.log(LogTag.JFR_SYSTEM, LogLevel.INFO, "Retransformed JDK classes"); jvm.retransformClasses(list.toArray(new Class<?>[list.size()])); } catch (IllegalStateException ise) { throw ise; } catch (Exception e) { Logger.log(LogTag.JFR_SYSTEM, LogLevel.WARN, "Could not add instrumentation for JDK events. " + e.getMessage()); } } private static void initializeContainerEvents() { containerMetrics = Container.metrics(); SecuritySupport.registerEvent(ContainerConfigurationEvent.class); SecuritySupport.registerEvent(ContainerCPUUsageEvent.class); SecuritySupport.registerEvent(ContainerCPUThrottlingEvent.class); SecuritySupport.registerEvent(ContainerMemoryUsageEvent.class); SecuritySupport.registerEvent(ContainerIOUsageEvent.class); RequestEngine.addTrustedJDKHook(ContainerConfigurationEvent.class, emitContainerConfiguration); RequestEngine.addTrustedJDKHook(ContainerCPUUsageEvent.class, emitContainerCPUUsage); RequestEngine.addTrustedJDKHook(ContainerCPUThrottlingEvent.class, emitContainerCPUThrottling); RequestEngine.addTrustedJDKHook(ContainerMemoryUsageEvent.class, emitContainerMemoryUsage); RequestEngine.addTrustedJDKHook(ContainerIOUsageEvent.class, emitContainerIOUsage); } private static void emitExceptionStatistics() { ExceptionStatisticsEvent t = new ExceptionStatisticsEvent(); t.throwables = ThrowableTracer.numThrowables(); t.commit(); } private static void emitContainerConfiguration() { if (containerMetrics != null) { ContainerConfigurationEvent t = new ContainerConfigurationEvent(); t.containerType = containerMetrics.getProvider(); t.cpuSlicePeriod = containerMetrics.getCpuPeriod(); t.cpuQuota = containerMetrics.getCpuQuota(); t.cpuShares = containerMetrics.getCpuShares(); t.effectiveCpuCount = containerMetrics.getEffectiveCpuCount(); t.memorySoftLimit = containerMetrics.getMemorySoftLimit(); t.memoryLimit = containerMetrics.getMemoryLimit(); t.swapMemoryLimit = containerMetrics.getMemoryAndSwapLimit(); t.commit(); } } private static void emitContainerCPUUsage() { if (containerMetrics != null) { ContainerCPUUsageEvent event = new ContainerCPUUsageEvent(); event.cpuTime = containerMetrics.getCpuUsage(); event.cpuSystemTime = containerMetrics.getCpuSystemUsage(); event.cpuUserTime = containerMetrics.getCpuUserUsage(); event.commit(); } } private static void emitContainerMemoryUsage() { if (containerMetrics != null) { ContainerMemoryUsageEvent event = new ContainerMemoryUsageEvent(); event.memoryFailCount = containerMetrics.getMemoryFailCount(); event.memoryUsage = containerMetrics.getMemoryUsage(); event.swapMemoryUsage = containerMetrics.getMemoryAndSwapUsage(); event.commit(); } } private static void emitContainerIOUsage() { if (containerMetrics != null) { ContainerIOUsageEvent event = new ContainerIOUsageEvent(); event.serviceRequests = containerMetrics.getBlkIOServiceCount(); event.dataTransferred = containerMetrics.getBlkIOServiced(); event.commit(); } } private static void emitContainerCPUThrottling() { if (containerMetrics != null) { ContainerCPUThrottlingEvent event = new ContainerCPUThrottlingEvent(); event.cpuElapsedSlices = containerMetrics.getCpuNumPeriods(); event.cpuThrottledSlices = containerMetrics.getCpuNumThrottled(); event.cpuThrottledTime = containerMetrics.getCpuThrottledTime(); event.commit(); } } @SuppressWarnings("deprecation") public static byte[] retransformCallback(Class<?> klass, byte[] oldBytes) throws Throwable { if (java.lang.Throwable.class == klass) { Logger.log(LogTag.JFR_SYSTEM, LogLevel.TRACE, "Instrumenting java.lang.Throwable"); return ConstructorTracerWriter.generateBytes(java.lang.Throwable.class, oldBytes); } if (java.lang.Error.class == klass) { Logger.log(LogTag.JFR_SYSTEM, LogLevel.TRACE, "Instrumenting java.lang.Error"); return ConstructorTracerWriter.generateBytes(java.lang.Error.class, oldBytes); } for (int i = 0; i < targetClasses.length; i++) { if (targetClasses[i].equals(klass)) { Class<?> c = instrumentationClasses[i]; if (Logger.shouldLog(LogTag.JFR_SYSTEM, LogLevel.TRACE)) { Logger.log(LogTag.JFR_SYSTEM, LogLevel.TRACE, "Processing instrumentation class: " + c); } return new JIClassInstrumentation(instrumentationClasses[i], klass, oldBytes).getNewBytes(); } } return oldBytes; } public static void remove() { RequestEngine.removeHook(emitExceptionStatistics); RequestEngine.removeHook(emitDirectBufferStatistics); RequestEngine.removeHook(emitContainerConfiguration); RequestEngine.removeHook(emitContainerCPUUsage); RequestEngine.removeHook(emitContainerCPUThrottling); RequestEngine.removeHook(emitContainerMemoryUsage); RequestEngine.removeHook(emitContainerIOUsage); } private static void emitDirectBufferStatistics() { DirectBufferStatisticsEvent e = new DirectBufferStatisticsEvent(); e.commit(); } }
⏎ jdk/jfr/internal/instrument/JDKEvents.java
Or download all of them as a single archive file:
File name: jdk.jfr-17.0.5-src.zip File size: 363343 bytes Release date: 2022-09-13 Download
⇒ JDK 17 jdk.jlink.jmod - JLink Tool
2023-04-17, 8929👍, 0💬
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