v1/src/xmlcomp/org/apache/xmlbeans/impl/tool/CodeGenUtil.java - xmlbeans - Git at Google

 /*
 * The Apache Software License, Version 1.1
 *
 *
 * Copyright (c) 2003 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Apache" and "Apache Software Foundation" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact apache@apache.org.
 *
 * 5. Products derived from this software may not be called "Apache
 *    XMLBeans", nor may "Apache" appear in their name, without prior
 *    written permission of the Apache Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation and was
 * originally based on software copyright (c) 2000-2003 BEA Systems
 * Inc., <http://www.bea.com/>. For more information on the Apache Software
 * Foundation, please see <http://www.apache.org/>.
 */

 package org.apache.xmlbeans.impl.tool;

 import java.util.ArrayList;
 import java.util.List;
 import java.util.Iterator;
 import java.util.Arrays;
 import java.io.File;
 import java.io.InputStream;
 import java.io.BufferedReader;
 import java.io.InputStreamReader;
 import java.io.FileFilter;
 import java.io.FileWriter;
 import java.net.URI;
 import java.net.URISyntaxException;

 public class CodeGenUtil
 {
     public static String DEFAULT_MEM_START = "8m";
     public static String DEFAULT_MEM_MAX = "256m";
     public static String DEFAULT_COMPILER = "javac";
     public static String DEFAULT_JAR = "jar";

     //workaround for Sun bug # 4723726
     public static URI resolve(URI base, URI child)
     {
         URI ruri = base.resolve(child);

         //fix up normalization bug
         if ("file".equals(ruri.getScheme()) && ! child.equals(ruri))
         {
             if (base.getPath().startsWith("//") && !ruri.getPath().startsWith("//"))
             {
                 String path = "///".concat(ruri.getPath());
                 try
                 {
                     ruri = new URI("file", null, path, ruri.getQuery(), ruri.getFragment());
                 }
                 catch(URISyntaxException uris)
                 {}
             }
         }
         return ruri;
     }

     static void addAllJavaFiles(List srcFiles, List args)
     {
         for (Iterator i = srcFiles.iterator(); i.hasNext(); )
         {
             File f = (File)i.next();
             if (!f.isDirectory())
             {
                 args.add(quoteAndEscapeFilename(f.getAbsolutePath()));
             }
             else
             {
                 List inside = (Arrays.asList(f.listFiles(
                     new FileFilter()
                     {
                         public boolean accept(File file)
                             { return (file.isFile() && file.getName().endsWith(".java")) || file.isDirectory(); }
                     }
                 )));
                 addAllJavaFiles(inside, args);
             }
         }
     }

     static private String quoteAndEscapeFilename(String filename)
     {
         // don't quote if there's no space
         if (filename.indexOf(" ") < 0)
             return filename;

         // bizarre.  javac expects backslash escaping if we quote the classpath
         // bizarre also.  replaceAll expects replacement backslashes to be double escaped.
         return "\"" + filename.replaceAll("\\\\", "\\\\\\\\") + "\"";
     }

     static private String quoteNoEscapeFilename(String filename)
     {
         // don't quote if there's no space, and don't quote on linux
         if (filename.indexOf(" ") < 0 || File.separatorChar == '/')
             return filename;

         return "\"" + filename + "\"";
     }

     /**
      * Invokes javac on the generated source files in order to turn them
      * into binary files in the output directory.  This will return a list of
      * <code>GenFile</code>s for all of the classes produced or null if an
      * error occurred.
      *
      * @deprecated
      */
     static public boolean externalCompile(List srcFiles, File outdir, File[] cp, boolean debug)
     {
         return externalCompile(srcFiles, outdir, cp, debug, DEFAULT_COMPILER, DEFAULT_MEM_START, DEFAULT_MEM_MAX, false, false);
     }

     /**
      * Invokes javac on the generated source files in order to turn them
      * into binary files in the output directory.  This will return a list of
      * <code>GenFile</code>s for all of the classes produced or null if an
      * error occurred.
      */
     static public boolean externalCompile(List srcFiles, File outdir, File[] cp, boolean debug, String javacPath, String memStart, String memMax,  boolean quiet, boolean verbose)
     {
         List args = new ArrayList();

         File javac = findJavaTool(javacPath == null ? DEFAULT_COMPILER : javacPath);
         assert (javac.exists()) : "compiler not found " + javac;
         args.add(javac.getAbsolutePath());

         if (outdir == null)
         {
             outdir = new File(".");
         }
         else
         {
             args.add("-d");
             args.add(quoteAndEscapeFilename(outdir.getAbsolutePath()));
         }

         if (cp == null)
         {
             cp = systemClasspath();
         }

         if (cp.length > 0)
         {
             StringBuffer classPath = new StringBuffer();
             // Add the output directory to the classpath.  We do this so that
             // javac will be able to find classes that were compiled
             // previously but are not in the list of sources this time.
             classPath.append(outdir.getAbsolutePath());

             // Add everything on our classpath.
             for (int i = 0; i < cp.length; i++)
             {
                 classPath.append(File.pathSeparator);
                 classPath.append(cp[i].getAbsolutePath());
             }

             args.add("-classpath");

             // bizarre.  javac expects backslash escaping if we quote the classpath
             args.add(quoteAndEscapeFilename(classPath.toString()));
         }

         args.add("-source");
         args.add("1.4");

         args.add(debug ? "-g" : "-g:none");

         if (verbose)
             args.add("-verbose");

         addAllJavaFiles(srcFiles, args);

         File clFile = null;
         try
         {
             clFile = File.createTempFile("javac", "");
             FileWriter fw = new FileWriter(clFile);
             Iterator i = args.iterator();
             for (i.next(); i.hasNext();)
             {
                 String arg = (String)i.next();
                 fw.write(arg);
                 fw.write('\n');
             }
             fw.close();
             List newargs = new ArrayList();
             newargs.add(args.get(0));

             if (memStart != null && memStart.length() != 0)
                 newargs.add("-J-Xms" + memStart);
             if (memMax != null && memMax.length() != 0)
                 newargs.add("-J-Xmx" + memMax);

             newargs.add("@" + clFile.getAbsolutePath());
             args = newargs;
         }
         catch (Exception e)
         {
             System.err.println("Could not create command-line file for javac");
         }

         try
         {
             String[] strArgs = (String[]) args.toArray(new String[args.size()]);

             if (verbose)
             {
                 System.out.print("compile command:");
                 for (int i = 0; i < strArgs.length; i++)
                     System.out.print(" " + strArgs[i]);
                 System.out.println();
             }

             final Process proc = Runtime.getRuntime().exec(strArgs);

             StringBuffer errorBuffer = new StringBuffer();
             StringBuffer outputBuffer = new StringBuffer();

             ThreadedReader out = new ThreadedReader(proc.getInputStream(), outputBuffer);
             ThreadedReader err = new ThreadedReader(proc.getErrorStream(), errorBuffer);

             proc.waitFor();

             if (verbose || proc.exitValue() != 0)
             {
                 if (outputBuffer.length() > 0) {
                     System.out.println(outputBuffer.toString());
                     System.out.flush();
                 }
                 if (errorBuffer.length() > 0) {
                     System.err.println(errorBuffer.toString());
                     System.err.flush();
                 }

                 if (proc.exitValue() != 0)
                     return false;
             }
         }
         catch (Throwable e)
         {
             System.err.println(e.toString());
             System.err.println(e.getCause());
             e.printStackTrace(System.err);
             return false;
         }

         if (clFile != null)
             clFile.delete();

         return true;
     }

     public static File[] systemClasspath()
     {
         List cp = new ArrayList();
         String[] systemcp = System.getProperty("java.class.path").split(File.pathSeparator);
         for (int i = 0; i < systemcp.length; i++)
         {
             cp.add(new File(systemcp[i]));
         }
         return (File[])cp.toArray(new File[cp.size()]);
     }

     static public boolean externalJar(File srcdir, File outfile)
     {
         return externalJar(srcdir, outfile, DEFAULT_JAR, false, false);
     }

     static public boolean externalJar(File srcdir, File outfile, String jarPath, boolean quiet, boolean verbose)
     {
         List args = new ArrayList();

         File jar = findJavaTool(jarPath == null ? DEFAULT_JAR : jarPath);
         assert (jar.exists()) : "jar not found " + jar;
         args.add(jar.getAbsolutePath());

         args.add("cf" + (verbose ? "v" : ""));
         args.add(quoteNoEscapeFilename(outfile.getAbsolutePath()));

         args.add("-C");
         args.add(quoteNoEscapeFilename(srcdir.getAbsolutePath()));

         args.add(".");

         try
         {
             String[] strArgs = (String[]) args.toArray(new String[args.size()]);

             if (verbose)
             {
                 System.out.print("jar command:");
                 for (int i = 0; i < strArgs.length; i++)
                     System.out.print(" " + strArgs[i]);
                 System.out.println();
             }

             final Process proc = Runtime.getRuntime().exec(strArgs);

             StringBuffer errorBuffer = new StringBuffer();
             StringBuffer outputBuffer = new StringBuffer();

             ThreadedReader out = new ThreadedReader(proc.getInputStream(), outputBuffer);
             ThreadedReader err = new ThreadedReader(proc.getErrorStream(), errorBuffer);

             proc.waitFor();

             if (verbose || proc.exitValue() != 0)
             {
                 if (outputBuffer.length() > 0) {
                     System.out.println(outputBuffer.toString());
                     System.out.flush();
                 }
                 if (errorBuffer.length() > 0) {
                     System.err.println(errorBuffer.toString());
                     System.err.flush();
                 }

                 if (proc.exitValue() != 0)
                     return false;
             }
         }
         catch (Throwable e)
         {
             e.printStackTrace(System.err);
             return false;
         }
         return true;
     }

     /**
      * Look for tool in current directory and ${JAVA_HOME}/../bin and
      * try with .exe file extension.
      */
     private static File findJavaTool(String tool)
     {
         File toolFile = new File(tool);
         if (toolFile.isFile()) {
             return toolFile;
         }

         File result = new File(tool + ".exe");
         if (result.isFile()) {
             return result;
         }

         String home = System.getProperty("java.home");

         String sep  = File.separator;
         result = new File(home + sep + ".." + sep + "bin", tool);

         if (result.isFile()) {
             return result;
         }

         result = new File(result.getPath() + ".exe");
         if (result.isFile()) {
             return result;
         }

         result = new File(home + sep + "bin", tool);
         if (result.isFile()) {
             return result;
         }

         result = new File(result.getPath() + ".exe");
         if (result.isFile()) {
             return result;
         }

         // just return the original toolFile and hope that it is on the PATH.
         return toolFile;
     }

     /**
      * Reads the given input stream into the given buffer until there is
      * nothing left to read.
      */
     static private class ThreadedReader
     {
         public ThreadedReader(InputStream stream, final StringBuffer output)
         {
             final BufferedReader reader =
                 new BufferedReader(new InputStreamReader(stream));

             Thread readerThread = new Thread(new Runnable() {
                 public void run()
                 {
                     String s;
                     try
                     {
                         while ((s = reader.readLine()) != null)
                             output.append(s + "\n");
                     }
                     catch (Exception e)
                     {}
                 }
             });
             readerThread.start();
         }
     }
 }
	/*
	* The Apache Software License, Version 1.1
	*
	*
	* Copyright (c) 2003 The Apache Software Foundation. All rights
	* reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions
	* are met:
	*
	* 1. Redistributions of source code must retain the above copyright
	* notice, this list of conditions and the following disclaimer.
	*
	* 2. Redistributions in binary form must reproduce the above copyright
	* notice, this list of conditions and the following disclaimer in
	* the documentation and/or other materials provided with the
	* distribution.
	*
	* 3. The end-user documentation included with the redistribution,
	* if any, must include the following acknowledgment:
	* "This product includes software developed by the
	* Apache Software Foundation (http://www.apache.org/)."
	* Alternately, this acknowledgment may appear in the software itself,
	* if and wherever such third-party acknowledgments normally appear.
	*
	* 4. The names "Apache" and "Apache Software Foundation" must
	* not be used to endorse or promote products derived from this
	* software without prior written permission. For written
	* permission, please contact apache@apache.org.
	*
	* 5. Products derived from this software may not be called "Apache
	* XMLBeans", nor may "Apache" appear in their name, without prior
	* written permission of the Apache Software Foundation.
	*
	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
	* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
	* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
	* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
	* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	* SUCH DAMAGE.
	* ====================================================================
	*
	* This software consists of voluntary contributions made by many
	* individuals on behalf of the Apache Software Foundation and was
	* originally based on software copyright (c) 2000-2003 BEA Systems
	* Inc., <http://www.bea.com/>. For more information on the Apache Software
	* Foundation, please see <http://www.apache.org/>.
	*/

	package org.apache.xmlbeans.impl.tool;

	import java.util.ArrayList;
	import java.util.List;
	import java.util.Iterator;
	import java.util.Arrays;
	import java.io.File;
	import java.io.InputStream;
	import java.io.BufferedReader;
	import java.io.InputStreamReader;
	import java.io.FileFilter;
	import java.io.FileWriter;
	import java.net.URI;
	import java.net.URISyntaxException;

	public class CodeGenUtil
	{
	public static String DEFAULT_MEM_START = "8m";
	public static String DEFAULT_MEM_MAX = "256m";
	public static String DEFAULT_COMPILER = "javac";
	public static String DEFAULT_JAR = "jar";

	//workaround for Sun bug # 4723726
	public static URI resolve(URI base, URI child)
	{
	URI ruri = base.resolve(child);

	//fix up normalization bug
	if ("file".equals(ruri.getScheme()) && ! child.equals(ruri))
	{
	if (base.getPath().startsWith("//") && !ruri.getPath().startsWith("//"))
	{
	String path = "///".concat(ruri.getPath());
	try
	{
	ruri = new URI("file", null, path, ruri.getQuery(), ruri.getFragment());
	}
	catch(URISyntaxException uris)
	{}
	}
	}
	return ruri;
	}

	static void addAllJavaFiles(List srcFiles, List args)
	{
	for (Iterator i = srcFiles.iterator(); i.hasNext(); )
	{
	File f = (File)i.next();
	if (!f.isDirectory())
	{
	args.add(quoteAndEscapeFilename(f.getAbsolutePath()));
	}
	else
	{
	List inside = (Arrays.asList(f.listFiles(
	new FileFilter()
	{
	public boolean accept(File file)
	{ return (file.isFile() && file.getName().endsWith(".java")) \|\| file.isDirectory(); }
	}
	)));
	addAllJavaFiles(inside, args);
	}
	}
	}

	static private String quoteAndEscapeFilename(String filename)
	{
	// don't quote if there's no space
	if (filename.indexOf(" ") < 0)
	return filename;

	// bizarre. javac expects backslash escaping if we quote the classpath
	// bizarre also. replaceAll expects replacement backslashes to be double escaped.
	return "\"" + filename.replaceAll("\\\\", "\\\\\\\\") + "\"";
	}

	static private String quoteNoEscapeFilename(String filename)
	{
	// don't quote if there's no space, and don't quote on linux
	if (filename.indexOf(" ") < 0 \|\| File.separatorChar == '/')
	return filename;

	return "\"" + filename + "\"";
	}

	/**
	* Invokes javac on the generated source files in order to turn them
	* into binary files in the output directory. This will return a list of
	* <code>GenFile</code>s for all of the classes produced or null if an
	* error occurred.
	*
	* @deprecated
	*/
	static public boolean externalCompile(List srcFiles, File outdir, File[] cp, boolean debug)
	{
	return externalCompile(srcFiles, outdir, cp, debug, DEFAULT_COMPILER, DEFAULT_MEM_START, DEFAULT_MEM_MAX, false, false);
	}

	/**
	* Invokes javac on the generated source files in order to turn them
	* into binary files in the output directory. This will return a list of
	* <code>GenFile</code>s for all of the classes produced or null if an
	* error occurred.
	*/
	static public boolean externalCompile(List srcFiles, File outdir, File[] cp, boolean debug, String javacPath, String memStart, String memMax, boolean quiet, boolean verbose)
	{
	List args = new ArrayList();

	File javac = findJavaTool(javacPath == null ? DEFAULT_COMPILER : javacPath);
	assert (javac.exists()) : "compiler not found " + javac;
	args.add(javac.getAbsolutePath());

	if (outdir == null)
	{
	outdir = new File(".");
	}
	else
	{
	args.add("-d");
	args.add(quoteAndEscapeFilename(outdir.getAbsolutePath()));
	}

	if (cp == null)
	{
	cp = systemClasspath();
	}

	if (cp.length > 0)
	{
	StringBuffer classPath = new StringBuffer();
	// Add the output directory to the classpath. We do this so that
	// javac will be able to find classes that were compiled
	// previously but are not in the list of sources this time.
	classPath.append(outdir.getAbsolutePath());

	// Add everything on our classpath.
	for (int i = 0; i < cp.length; i++)
	{
	classPath.append(File.pathSeparator);
	classPath.append(cp[i].getAbsolutePath());
	}

	args.add("-classpath");

	// bizarre. javac expects backslash escaping if we quote the classpath
	args.add(quoteAndEscapeFilename(classPath.toString()));
	}

	args.add("-source");
	args.add("1.4");

	args.add(debug ? "-g" : "-g:none");

	if (verbose)
	args.add("-verbose");

	addAllJavaFiles(srcFiles, args);

	File clFile = null;
	try
	{
	clFile = File.createTempFile("javac", "");
	FileWriter fw = new FileWriter(clFile);
	Iterator i = args.iterator();
	for (i.next(); i.hasNext();)
	{
	String arg = (String)i.next();
	fw.write(arg);
	fw.write('\n');
	}
	fw.close();
	List newargs = new ArrayList();
	newargs.add(args.get(0));

	if (memStart != null && memStart.length() != 0)
	newargs.add("-J-Xms" + memStart);
	if (memMax != null && memMax.length() != 0)
	newargs.add("-J-Xmx" + memMax);

	newargs.add("@" + clFile.getAbsolutePath());
	args = newargs;
	}
	catch (Exception e)
	{
	System.err.println("Could not create command-line file for javac");
	}

	try
	{
	String[] strArgs = (String[]) args.toArray(new String[args.size()]);

	if (verbose)
	{
	System.out.print("compile command:");
	for (int i = 0; i < strArgs.length; i++)
	System.out.print(" " + strArgs[i]);
	System.out.println();
	}

	final Process proc = Runtime.getRuntime().exec(strArgs);

	StringBuffer errorBuffer = new StringBuffer();
	StringBuffer outputBuffer = new StringBuffer();

	ThreadedReader out = new ThreadedReader(proc.getInputStream(), outputBuffer);
	ThreadedReader err = new ThreadedReader(proc.getErrorStream(), errorBuffer);

	proc.waitFor();

	if (verbose \|\| proc.exitValue() != 0)
	{
	if (outputBuffer.length() > 0) {
	System.out.println(outputBuffer.toString());
	System.out.flush();
	}
	if (errorBuffer.length() > 0) {
	System.err.println(errorBuffer.toString());
	System.err.flush();
	}

	if (proc.exitValue() != 0)
	return false;
	}
	}
	catch (Throwable e)
	{
	System.err.println(e.toString());
	System.err.println(e.getCause());
	e.printStackTrace(System.err);
	return false;
	}

	if (clFile != null)
	clFile.delete();

	return true;
	}

	public static File[] systemClasspath()
	{
	List cp = new ArrayList();
	String[] systemcp = System.getProperty("java.class.path").split(File.pathSeparator);
	for (int i = 0; i < systemcp.length; i++)
	{
	cp.add(new File(systemcp[i]));
	}
	return (File[])cp.toArray(new File[cp.size()]);
	}

	static public boolean externalJar(File srcdir, File outfile)
	{
	return externalJar(srcdir, outfile, DEFAULT_JAR, false, false);
	}

	static public boolean externalJar(File srcdir, File outfile, String jarPath, boolean quiet, boolean verbose)
	{
	List args = new ArrayList();

	File jar = findJavaTool(jarPath == null ? DEFAULT_JAR : jarPath);
	assert (jar.exists()) : "jar not found " + jar;
	args.add(jar.getAbsolutePath());

	args.add("cf" + (verbose ? "v" : ""));
	args.add(quoteNoEscapeFilename(outfile.getAbsolutePath()));

	args.add("-C");
	args.add(quoteNoEscapeFilename(srcdir.getAbsolutePath()));

	args.add(".");

	try
	{
	String[] strArgs = (String[]) args.toArray(new String[args.size()]);

	if (verbose)
	{
	System.out.print("jar command:");
	for (int i = 0; i < strArgs.length; i++)
	System.out.print(" " + strArgs[i]);
	System.out.println();
	}

	final Process proc = Runtime.getRuntime().exec(strArgs);

	StringBuffer errorBuffer = new StringBuffer();
	StringBuffer outputBuffer = new StringBuffer();

	ThreadedReader out = new ThreadedReader(proc.getInputStream(), outputBuffer);
	ThreadedReader err = new ThreadedReader(proc.getErrorStream(), errorBuffer);

	proc.waitFor();

	if (verbose \|\| proc.exitValue() != 0)
	{
	if (outputBuffer.length() > 0) {
	System.out.println(outputBuffer.toString());
	System.out.flush();
	}
	if (errorBuffer.length() > 0) {
	System.err.println(errorBuffer.toString());
	System.err.flush();
	}

	if (proc.exitValue() != 0)
	return false;
	}
	}
	catch (Throwable e)
	{
	e.printStackTrace(System.err);
	return false;
	}
	return true;
	}

	/**
	* Look for tool in current directory and ${JAVA_HOME}/../bin and
	* try with .exe file extension.
	*/
	private static File findJavaTool(String tool)
	{
	File toolFile = new File(tool);
	if (toolFile.isFile()) {
	return toolFile;
	}

	File result = new File(tool + ".exe");
	if (result.isFile()) {
	return result;
	}

	String home = System.getProperty("java.home");

	String sep = File.separator;
	result = new File(home + sep + ".." + sep + "bin", tool);

	if (result.isFile()) {
	return result;
	}

	result = new File(result.getPath() + ".exe");
	if (result.isFile()) {
	return result;
	}

	result = new File(home + sep + "bin", tool);
	if (result.isFile()) {
	return result;
	}

	result = new File(result.getPath() + ".exe");
	if (result.isFile()) {
	return result;
	}

	// just return the original toolFile and hope that it is on the PATH.
	return toolFile;
	}

	/**
	* Reads the given input stream into the given buffer until there is
	* nothing left to read.
	*/
	static private class ThreadedReader
	{
	public ThreadedReader(InputStream stream, final StringBuffer output)
	{
	final BufferedReader reader =
	new BufferedReader(new InputStreamReader(stream));

	Thread readerThread = new Thread(new Runnable() {
	public void run()
	{
	String s;
	try
	{
	while ((s = reader.readLine()) != null)
	output.append(s + "\n");
	}
	catch (Exception e)
	{}
	}
	});
	readerThread.start();
	}
	}
	}