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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/io/ExpiringCache.java
/* * Copyright (c) 2002, 2011, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ /* */ package java.io; import java.util.Iterator; import java.util.Map; import java.util.LinkedHashMap; import java.util.Set; class ExpiringCache { private long millisUntilExpiration; private Map<String,Entry> map; // Clear out old entries every few queries private int queryCount; private int queryOverflow = 300; private int MAX_ENTRIES = 200; static class Entry { private long timestamp; private String val; Entry(long timestamp, String val) { this.timestamp = timestamp; this.val = val; } long timestamp() { return timestamp; } void setTimestamp(long timestamp) { this.timestamp = timestamp; } String val() { return val; } void setVal(String val) { this.val = val; } } ExpiringCache() { this(30000); } @SuppressWarnings("serial") ExpiringCache(long millisUntilExpiration) { this.millisUntilExpiration = millisUntilExpiration; map = new LinkedHashMap<String,Entry>() { protected boolean removeEldestEntry(Map.Entry<String,Entry> eldest) { return size() > MAX_ENTRIES; } }; } synchronized String get(String key) { if (++queryCount >= queryOverflow) { cleanup(); } Entry entry = entryFor(key); if (entry != null) { return entry.val(); } return null; } synchronized void put(String key, String val) { if (++queryCount >= queryOverflow) { cleanup(); } Entry entry = entryFor(key); if (entry != null) { entry.setTimestamp(System.currentTimeMillis()); entry.setVal(val); } else { map.put(key, new Entry(System.currentTimeMillis(), val)); } } synchronized void clear() { map.clear(); } private Entry entryFor(String key) { Entry entry = map.get(key); if (entry != null) { long delta = System.currentTimeMillis() - entry.timestamp(); if (delta < 0 || delta >= millisUntilExpiration) { map.remove(key); entry = null; } } return entry; } private void cleanup() { Set<String> keySet = map.keySet(); // Avoid ConcurrentModificationExceptions String[] keys = new String[keySet.size()]; int i = 0; for (String key: keySet) { keys[i++] = key; } for (int j = 0; j < keys.length; j++) { entryFor(keys[j]); } queryCount = 0; } }
⏎ java/io/ExpiringCache.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, 246162👍, 4💬
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