JRE 8 rt.jar - com.* 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 com.* package in JRE 1.8.0_191 rt.jar. Java source codes are also provided.
✍: FYIcenter
⏎ com/sun/naming/internal/VersionHelper12.java
/*
* Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
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*/
package com.sun.naming.internal;
import java.io.InputStream;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URLClassLoader;
import java.net.URL;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
import java.util.Enumeration;
import java.util.NoSuchElementException;
import java.util.Properties;
import javax.naming.*;
/**
* VersionHelper was used by JNDI to accommodate differences between
* JDK 1.1.x and the Java 2 platform. As this is no longer necessary
* since JNDI's inclusion in the platform, this class currently
* serves as a set of utilities for performing system-level things,
* such as class-loading and reading system properties.
*
* @author Rosanna Lee
* @author Scott Seligman
*/
final class VersionHelper12 extends VersionHelper {
// Disallow external from creating one of these.
VersionHelper12() {
}
public Class<?> loadClass(String className) throws ClassNotFoundException {
return loadClass(className, getContextClassLoader());
}
/**
* Determines whether classes may be loaded from an arbitrary URL code base.
*/
private static final String TRUST_URL_CODEBASE_PROPERTY =
"com.sun.jndi.ldap.object.trustURLCodebase";
private static final String trustURLCodebase =
AccessController.doPrivileged(
new PrivilegedAction<String>() {
public String run() {
try {
return System.getProperty(TRUST_URL_CODEBASE_PROPERTY,
"false");
} catch (SecurityException e) {
return "false";
}
}
}
);
/**
* Package private.
*
* This internal method is used with Thread Context Class Loader (TCCL),
* please don't expose this method as public.
*/
Class<?> loadClass(String className, ClassLoader cl)
throws ClassNotFoundException {
Class<?> cls = Class.forName(className, true, cl);
return cls;
}
/**
* @param className A non-null fully qualified class name.
* @param codebase A non-null, space-separated list of URL strings.
*/
public Class<?> loadClass(String className, String codebase)
throws ClassNotFoundException, MalformedURLException {
if ("true".equalsIgnoreCase(trustURLCodebase)) {
ClassLoader parent = getContextClassLoader();
ClassLoader cl =
URLClassLoader.newInstance(getUrlArray(codebase), parent);
return loadClass(className, cl);
} else {
return null;
}
}
String getJndiProperty(final int i) {
return AccessController.doPrivileged(
new PrivilegedAction<String>() {
public String run() {
try {
return System.getProperty(PROPS[i]);
} catch (SecurityException e) {
return null;
}
}
}
);
}
String[] getJndiProperties() {
Properties sysProps = AccessController.doPrivileged(
new PrivilegedAction<Properties>() {
public Properties run() {
try {
return System.getProperties();
} catch (SecurityException e) {
return null;
}
}
}
);
if (sysProps == null) {
return null;
}
String[] jProps = new String[PROPS.length];
for (int i = 0; i < PROPS.length; i++) {
jProps[i] = sysProps.getProperty(PROPS[i]);
}
return jProps;
}
InputStream getResourceAsStream(final Class<?> c, final String name) {
return AccessController.doPrivileged(
new PrivilegedAction<InputStream>() {
public InputStream run() {
return c.getResourceAsStream(name);
}
}
);
}
InputStream getJavaHomeLibStream(final String filename) {
return AccessController.doPrivileged(
new PrivilegedAction<InputStream>() {
public InputStream run() {
try {
String javahome = System.getProperty("java.home");
if (javahome == null) {
return null;
}
String pathname = javahome + java.io.File.separator +
"lib" + java.io.File.separator + filename;
return new java.io.FileInputStream(pathname);
} catch (Exception e) {
return null;
}
}
}
);
}
NamingEnumeration<InputStream> getResources(final ClassLoader cl,
final String name) throws IOException {
Enumeration<URL> urls;
try {
urls = AccessController.doPrivileged(
new PrivilegedExceptionAction<Enumeration<URL>>() {
public Enumeration<URL> run() throws IOException {
return (cl == null)
? ClassLoader.getSystemResources(name)
: cl.getResources(name);
}
}
);
} catch (PrivilegedActionException e) {
throw (IOException)e.getException();
}
return new InputStreamEnumeration(urls);
}
/**
* Package private.
*
* This internal method returns Thread Context Class Loader (TCCL),
* if null, returns the system Class Loader.
*
* Please don't expose this method as public.
*/
ClassLoader getContextClassLoader() {
return AccessController.doPrivileged(
new PrivilegedAction<ClassLoader>() {
public ClassLoader run() {
ClassLoader loader =
Thread.currentThread().getContextClassLoader();
if (loader == null) {
// Don't use bootstrap class loader directly!
loader = ClassLoader.getSystemClassLoader();
}
return loader;
}
}
);
}
/**
* Given an enumeration of URLs, an instance of this class represents
* an enumeration of their InputStreams. Each operation on the URL
* enumeration is performed within a doPrivileged block.
* This is used to enumerate the resources under a foreign codebase.
* This class is not MT-safe.
*/
class InputStreamEnumeration implements NamingEnumeration<InputStream> {
private final Enumeration<URL> urls;
private InputStream nextElement = null;
InputStreamEnumeration(Enumeration<URL> urls) {
this.urls = urls;
}
/*
* Returns the next InputStream, or null if there are no more.
* An InputStream that cannot be opened is skipped.
*/
private InputStream getNextElement() {
return AccessController.doPrivileged(
new PrivilegedAction<InputStream>() {
public InputStream run() {
while (urls.hasMoreElements()) {
try {
return urls.nextElement().openStream();
} catch (IOException e) {
// skip this URL
}
}
return null;
}
}
);
}
public boolean hasMore() {
if (nextElement != null) {
return true;
}
nextElement = getNextElement();
return (nextElement != null);
}
public boolean hasMoreElements() {
return hasMore();
}
public InputStream next() {
if (hasMore()) {
InputStream res = nextElement;
nextElement = null;
return res;
} else {
throw new NoSuchElementException();
}
}
public InputStream nextElement() {
return next();
}
public void close() {
}
}
}
⏎ com/sun/naming/internal/VersionHelper12.java
Or download all of them as a single archive file:
File name: jre-rt-com-1.8.0_191-src.zip File size: 8099783 bytes Release date: 2018-10-28 Download
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