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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/security/SecureClassLoader.java
/* * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package java.security; import java.util.HashMap; import java.util.ArrayList; import java.net.URL; import sun.security.util.Debug; /** * This class extends ClassLoader with additional support for defining * classes with an associated code source and permissions which are * retrieved by the system policy by default. * * @author Li Gong * @author Roland Schemers */ public class SecureClassLoader extends ClassLoader { /* * If initialization succeed this is set to true and security checks will * succeed. Otherwise the object is not initialized and the object is * useless. */ private final boolean initialized; // HashMap that maps CodeSource to ProtectionDomain // @GuardedBy("pdcache") private final HashMap<CodeSource, ProtectionDomain> pdcache = new HashMap<>(11); private static final Debug debug = Debug.getInstance("scl"); static { ClassLoader.registerAsParallelCapable(); } /** * Creates a new SecureClassLoader using the specified parent * class loader for delegation. * * <p>If there is a security manager, this method first * calls the security manager's {@code checkCreateClassLoader} * method to ensure creation of a class loader is allowed. * <p> * @param parent the parent ClassLoader * @exception SecurityException if a security manager exists and its * {@code checkCreateClassLoader} method doesn't allow * creation of a class loader. * @see SecurityManager#checkCreateClassLoader */ protected SecureClassLoader(ClassLoader parent) { super(parent); // this is to make the stack depth consistent with 1.1 SecurityManager security = System.getSecurityManager(); if (security != null) { security.checkCreateClassLoader(); } initialized = true; } /** * Creates a new SecureClassLoader using the default parent class * loader for delegation. * * <p>If there is a security manager, this method first * calls the security manager's {@code checkCreateClassLoader} * method to ensure creation of a class loader is allowed. * * @exception SecurityException if a security manager exists and its * {@code checkCreateClassLoader} method doesn't allow * creation of a class loader. * @see SecurityManager#checkCreateClassLoader */ protected SecureClassLoader() { super(); // this is to make the stack depth consistent with 1.1 SecurityManager security = System.getSecurityManager(); if (security != null) { security.checkCreateClassLoader(); } initialized = true; } /** * Converts an array of bytes into an instance of class Class, * with an optional CodeSource. Before the * class can be used it must be resolved. * <p> * If a non-null CodeSource is supplied a ProtectionDomain is * constructed and associated with the class being defined. * <p> * @param name the expected name of the class, or {@code null} * if not known, using '.' and not '/' as the separator * and without a trailing ".class" suffix. * @param b the bytes that make up the class data. The bytes in * positions {@code off} through {@code off+len-1} * should have the format of a valid class file as defined by * <cite>The Java™ Virtual Machine Specification</cite>. * @param off the start offset in {@code b} of the class data * @param len the length of the class data * @param cs the associated CodeSource, or {@code null} if none * @return the {@code Class} object created from the data, * and optional CodeSource. * @exception ClassFormatError if the data did not contain a valid class * @exception IndexOutOfBoundsException if either {@code off} or * {@code len} is negative, or if * {@code off+len} is greater than {@code b.length}. * * @exception SecurityException if an attempt is made to add this class * to a package that contains classes that were signed by * a different set of certificates than this class, or if * the class name begins with "java.". */ protected final Class<?> defineClass(String name, byte[] b, int off, int len, CodeSource cs) { return defineClass(name, b, off, len, getProtectionDomain(cs)); } /** * Converts a {@link java.nio.ByteBuffer ByteBuffer} * into an instance of class {@code Class}, with an optional CodeSource. * Before the class can be used it must be resolved. * <p> * If a non-null CodeSource is supplied a ProtectionDomain is * constructed and associated with the class being defined. * <p> * @param name the expected name of the class, or {@code null} * if not known, using '.' and not '/' as the separator * and without a trailing ".class" suffix. * @param b the bytes that make up the class data. The bytes from positions * {@code b.position()} through {@code b.position() + b.limit() -1} * should have the format of a valid class file as defined by * <cite>The Java™ Virtual Machine Specification</cite>. * @param cs the associated CodeSource, or {@code null} if none * @return the {@code Class} object created from the data, * and optional CodeSource. * @exception ClassFormatError if the data did not contain a valid class * @exception SecurityException if an attempt is made to add this class * to a package that contains classes that were signed by * a different set of certificates than this class, or if * the class name begins with "java.". * * @since 1.5 */ protected final Class<?> defineClass(String name, java.nio.ByteBuffer b, CodeSource cs) { return defineClass(name, b, getProtectionDomain(cs)); } /** * Returns the permissions for the given CodeSource object. * <p> * This method is invoked by the defineClass method which takes * a CodeSource as an argument when it is constructing the * ProtectionDomain for the class being defined. * <p> * @param codesource the codesource. * * @return the permissions granted to the codesource. * */ protected PermissionCollection getPermissions(CodeSource codesource) { check(); return new Permissions(); // ProtectionDomain defers the binding } /* * Returned cached ProtectionDomain for the specified CodeSource. */ private ProtectionDomain getProtectionDomain(CodeSource cs) { if (cs == null) return null; ProtectionDomain pd = null; synchronized (pdcache) { pd = pdcache.get(cs); if (pd == null) { PermissionCollection perms = getPermissions(cs); pd = new ProtectionDomain(cs, perms, this, null); pdcache.put(cs, pd); if (debug != null) { debug.println(" getPermissions "+ pd); debug.println(""); } } } return pd; } /* * Check to make sure the class loader has been initialized. */ private void check() { if (!initialized) { throw new SecurityException("ClassLoader object not initialized"); } } }
⏎ java/security/SecureClassLoader.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, 249058👍, 4💬
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