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JDK 17 java.management.jmod - Management Module
JDK 17 java.management.jmod is the JMOD file for JDK 17 Management module.
JDK 17 Management module compiled class files are stored in \fyicenter\jdk-17.0.5\jmods\java.management.jmod.
JDK 17 Management module compiled class files are also linked and stored in the \fyicenter\jdk-17.0.5\lib\modules JImage file.
JDK 17 Management module source code files are stored in \fyicenter\jdk-17.0.5\lib\src.zip\java.management.
You can click and view the content of each source code file in the list below.
✍: FYIcenter
⏎ sun/management/counter/perf/PerfInstrumentation.java
/* * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package sun.management.counter.perf; import sun.management.counter.*; import java.nio.*; import java.util.*; import java.util.regex.*; public class PerfInstrumentation { private ByteBuffer buffer; private Prologue prologue; private long lastModificationTime; private long lastUsed; private int nextEntry; private SortedMap<String, Counter> map; public PerfInstrumentation(ByteBuffer b) { prologue = new Prologue(b); buffer = b; buffer.order(prologue.getByteOrder()); // Check recognized versions int major = getMajorVersion(); int minor = getMinorVersion(); // Support only 2.0 version if (major < 2) { throw new InstrumentationException("Unsupported version: " + major + "." + minor); } rewind(); } public int getMajorVersion() { return prologue.getMajorVersion(); } public int getMinorVersion() { return prologue.getMinorVersion(); } public long getModificationTimeStamp() { return prologue.getModificationTimeStamp(); } void rewind() { // rewind to the first entry buffer.rewind(); buffer.position(prologue.getEntryOffset()); nextEntry = buffer.position(); // rebuild all the counters map = new TreeMap<>(); } boolean hasNext() { return (nextEntry < prologue.getUsed()); } Counter getNextCounter() { if (! hasNext()) { return null; } if ((nextEntry % 4) != 0) { // entries are always 4 byte aligned. throw new InstrumentationException( "Entry index not properly aligned: " + nextEntry); } if (nextEntry < 0 || nextEntry > buffer.limit()) { // defensive check to protect against a corrupted shared memory region. throw new InstrumentationException( "Entry index out of bounds: nextEntry = " + nextEntry + ", limit = " + buffer.limit()); } buffer.position(nextEntry); PerfDataEntry entry = new PerfDataEntry(buffer); nextEntry = nextEntry + entry.size(); Counter counter = null; PerfDataType type = entry.type(); if (type == PerfDataType.BYTE) { if (entry.units() == Units.STRING && entry.vectorLength() > 0) { counter = new PerfStringCounter(entry.name(), entry.variability(), entry.flags(), entry.vectorLength(), entry.byteData()); } else if (entry.vectorLength() > 0) { counter = new PerfByteArrayCounter(entry.name(), entry.units(), entry.variability(), entry.flags(), entry.vectorLength(), entry.byteData()); } else { // ByteArrayCounter must have vectorLength > 0 assert false; } } else if (type == PerfDataType.LONG) { if (entry.vectorLength() == 0) { counter = new PerfLongCounter(entry.name(), entry.units(), entry.variability(), entry.flags(), entry.longData()); } else { counter = new PerfLongArrayCounter(entry.name(), entry.units(), entry.variability(), entry.flags(), entry.vectorLength(), entry.longData()); } } else { // FIXME: Should we throw an exception for unsupported type? // Currently skip such entry assert false; } return counter; } public synchronized List<Counter> getAllCounters() { while (hasNext()) { Counter c = getNextCounter(); if (c != null) { map.put(c.getName(), c); } } return new ArrayList<>(map.values()); } public synchronized List<Counter> findByPattern(String patternString) { while (hasNext()) { Counter c = getNextCounter(); if (c != null) { map.put(c.getName(), c); } } Pattern pattern = Pattern.compile(patternString); Matcher matcher = pattern.matcher(""); List<Counter> matches = new ArrayList<>(); for (Map.Entry<String,Counter> me: map.entrySet()) { String name = me.getKey(); // apply pattern to counter name matcher.reset(name); // if the pattern matches, then add Counter to list if (matcher.lookingAt()) { matches.add(me.getValue()); } } return matches; } }
⏎ sun/management/counter/perf/PerfInstrumentation.java
Or download all of them as a single archive file:
File name: java.management-17.0.5-src.zip File size: 850134 bytes Release date: 2022-09-13 Download
⇒ JDK 17 java.management.rmi.jmod - Management RMI Module
2023-09-23, 11342👍, 0💬
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