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JRE 8 rt.jar - java.* Package Source Code
JRE 8 rt.jar is the JAR file for JRE 8 RT (Runtime) libraries. JRE (Java Runtime) 8 is the runtime environment included in JDK 8. JRE 8 rt.jar libraries are divided into 6 packages:
com.* - Internal Oracle and Sun Microsystems libraries java.* - Standard Java API libraries. javax.* - Extended Java API libraries. jdk.* - JDK supporting libraries. org.* - Third party libraries. sun.* - Old libraries developed by Sun Microsystems.
JAR File Information:
Directory of C:\fyicenter\jdk-1.8.0_191\jre\lib 63,596,151 rt.jar
Here is the list of Java classes of the java.* package in JRE 1.8.0_191 rt.jar. Java source codes are also provided.
✍: FYIcenter
⏎ java/lang/ref/FinalizerHistogram.java
/* * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package java.lang.ref; import java.util.Map; import java.util.HashMap; import java.util.Arrays; import java.util.Comparator; /** * This FinalizerHistogram class is for GC.finalizer_info diagnostic command support. * It is invoked by the VM. */ final class FinalizerHistogram { private static final class Entry { private int instanceCount; private final String className; int getInstanceCount() { return instanceCount; } void increment() { instanceCount += 1; } Entry(String className) { this.className = className; } } // Method below is called by VM and VM expect certain // entry class layout. static Entry[] getFinalizerHistogram() { Map<String, Entry> countMap = new HashMap<>(); ReferenceQueue<Object> queue = Finalizer.getQueue(); queue.forEach(r -> { Object referent = r.get(); if (referent != null) { countMap.computeIfAbsent( referent.getClass().getName(), Entry::new).increment(); /* Clear stack slot containing this variable, to decrease the chances of false retention with a conservative GC */ referent = null; } }); Entry fhe[] = countMap.values().toArray(new Entry[countMap.size()]); Arrays.sort(fhe, Comparator.comparingInt(Entry::getInstanceCount).reversed()); return fhe; } }
⏎ java/lang/ref/FinalizerHistogram.java
Or download all of them as a single archive file:
File name: jre-rt-java-1.8.0_191-src.zip File size: 6664831 bytes Release date: 2018-10-28 Download
⇒ JRE 8 rt.jar - javax.* Package Source Code
2023-08-23, 247533👍, 4💬
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