jdk8-mips64-public/hotspot: test/compiler/jsr292/methodHandleExceptions/ByteClassLoader.java@a51071796915 (annotated)

test/compiler/jsr292/methodHandleExceptions/ByteClassLoader.java@a51071796915 (annotated)

test/compiler/jsr292/methodHandleExceptions/ByteClassLoader.java

Wed, 21 Jan 2015 12:38:11 +0100

author: goetz
date: Wed, 21 Jan 2015 12:38:11 +0100
changeset 7574: a51071796915
parent 6134: 9d15b81d5d1b
child 6876: 710a3c8b516e
permissions: -rw-r--r--

8068013: [TESTBUG] Aix support in hotspot jtreg tests
Reviewed-by: ctornqvi, fzhinkin, farvidsson

 import java.io.BufferedOutputStream;
 import java.io.FileNotFoundException;
 import java.io.FileOutputStream;
 import java.io.IOException;
 import java.net.URL;
 import java.net.URLClassLoader;
 import java.util.jar.JarEntry;
 import java.util.jar.JarOutputStream;
 /*
  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 /**
  * A ByteClassLoader is used to define classes from collections of bytes, as
  * well as loading classes in the usual way. It includes options to write the
  * classes to files in a jar, or to read the classes from jars in a later or
  * debugging run.
  *
  * If Boolean property byteclassloader.verbose is true, be chatty about jar
  * file operations.
  *
  */
 public class ByteClassLoader extends URLClassLoader {
     final static boolean verbose
             = Boolean.getBoolean("byteclassloader.verbose");
     final boolean read;
     final JarOutputStream jos;
     final String jar_name;
     /**
      * Make a new ByteClassLoader.
      *
      * @param jar_name  Basename of jar file to be read/written by this classloader.
      * @param read      If true, read classes from jar file instead of from parameter.
      * @param write     If true, write classes to jar files for offline study/use.
      *
      * @throws FileNotFoundException
      * @throws IOException
      */
     public ByteClassLoader(String jar_name, boolean read, boolean write)
             throws FileNotFoundException, IOException {
         super(read
                 ? new URL[]{new URL("file:" + jar_name + ".jar")}
                 : new URL[0]);
         this.read = read;
         this.jar_name = jar_name;
         this.jos = write
                 ? new JarOutputStream(
                 new BufferedOutputStream(
                 new FileOutputStream(jar_name + ".jar"))) : null;
         if (read && write) {
             throw new Error("At most one of read and write may be true.");
         }
     }
     private static void writeJarredFile(JarOutputStream jos, String file, String suffix, byte[] bytes) {
         String fileName = file.replace(".", "/") + "." + suffix;
         JarEntry ze = new JarEntry(fileName);
         try {
             ze.setSize(bytes.length);
             jos.putNextEntry(ze);
             jos.write(bytes);
             jos.closeEntry();
         } catch (IOException e) {
             throw new RuntimeException(e);
         }
     }
     /**
      * (pre)load class name using classData for the definition.
      *
      * @param name
      * @param classData
      * @return
      */
     public Class<?> loadBytes(String name, byte[] classData) throws ClassNotFoundException {
         if (jos != null) {
             if (verbose) {
                 System.out.println("ByteClassLoader: writing " + name);
             }
             writeJarredFile(jos, name, "class", classData);
         }
         Class<?> clazz = null;
         if (read) {
             if (verbose) {
                 System.out.println("ByteClassLoader: reading " + name + " from " + jar_name);
             }
             clazz = loadClass(name);
         } else {
             clazz = defineClass(name, classData, 0, classData.length);
             resolveClass(clazz);
         }
         return clazz;
     }
     public void close() {
         if (jos != null) {
             try {
                 if (verbose) {
                     System.out.println("ByteClassLoader: closing " + jar_name);
                 }
                 jos.close();
             } catch (IOException ex) {
             }
         }
     }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

test/compiler/jsr292/methodHandleExceptions/ByteClassLoader.java@a51071796915 (annotated)

test/compiler/jsr292/methodHandleExceptions/ByteClassLoader.java