Java on Macintosh!!

Hi all,
I might be getting a Mac, i think Mac OS X. And i think someone said Java is already installed in it. Can Java work on mac?
I am learning Java on Windows and i have everything. In mac is it exactly the same? Like the code?
And what will i have to install and how will i get it to work.
Thanks in advance.

I might be getting a Mac, i think Mac OS X. If it's new, then it will be OS X. Don't get the classic OS if you want to run Java; The java implementation on OS 9 is at version 1.1.7.
And i think someone said Java is already installed in it.The latest Apple versions of the 1.4 runtime should be. It is likely that Java 1.5 will be released with OS X 10.4, but Apple don't give out future release schedules in public. (You get it when it's ready)
I am learning Java on Windows and i have everything.No you don't.
In mac is it exactly the same? Like the code?The Apple implementation of swing feels closer to native Aqua applications than the Sun implementation on Windows. The default for java applications is to use Aqua look and feel rather than Metal.
There are a couple of times I've been caught out with UI code written on OS X not working on Windows; usually traced to race conditions and the Apple implementation having differences in its thread model, (also the Apple OpenGL implementation being more lenient in which order you call functions, but that is only if you're doing OpenGL work).
There are also additional classes that bind to apple's user interface components, which give access to the Cocoa native widgets that the awt or swing libraries don't. The Java bindings lag behind the native objective-c Cocoa, and objective-c is not a difficult language to learn if you're used to C and Java, so I would probably use objective-c and JNI rather than the cocoa-java if I wanted native widgets and Java in the same application.
And what will i have to install and how will i get it to work.To run Java, nothing, it's all installed already.
To build Java applications, download or install the developer tools. This will install the Java SDK, and XCode, Apple's IDE. Both are free.
Pete

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-siva

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When will java 1.4 available on Macintosh ?

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How to open new webBrowser in java with BrowserLauncher.java

I m using BrowserLauncher.java which opens default webBrowser but i want to open new webBrowser for new request each time.
Plz suggest to me what changes i have to made in this java class.
it is very urgent???
package com.pst.lmsgui.utils;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
* BrowserLauncher is a class that provides one static method, openURL, which opens the default
* web browser for the current user of the system to the given URL. It may support other
* protocols depending on the system -- mailto, ftp, etc. -- but that has not been rigorously
* tested and is not guaranteed to work.
* 
* Yes, this is platform-specific code, and yes, it may rely on classes on certain platforms
* that are not part of the standard JDK. What we're trying to do, though, is to take something
* that's frequently desirable but inherently platform-specific -- opening a default browser --
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* 
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* platforms to allow this to run are dynamically loaded at runtime via reflection and, if not
* found, will not cause this to do anything other than returning an error when opening the
* browser.
* 
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* which is Java's way of making a native system call. Currently, this requires that a Macintosh
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* in the Extensions folder (which is installed by default as far as I know under Mac OS 8.0 and
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* 
* This code is Copyright 1999 by Eric Albert ([email protected]) and may be redistributed
* or modified in any form without restrictions as long as the portion of this comment from this
* paragraph through the end of the comment is not removed. The author requests that he be
* notified of any application, applet, or other binary that makes use of this code, but that's
* more out of curiosity than anything and is not required. This software includes no warranty.
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* The Java virtual machine that we are running on. Actually, in most cases we only care
* about the operating system, but some operating systems require us to switch on the VM. */
private static int jvm;
/** The browser for the system */
private static Object browser;
* Caches whether any classes, methods, and fields that are not part of the JDK and need to
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/** The sendNoReply method of com.apple.MacOS.AppleEvent */
private static Method sendNoReply;
/** Actually an MRJOSType pointing to the System Folder on a Macintosh */
private static Object kSystemFolderType;
/** The keyDirectObject AppleEvent parameter type */
private static Integer keyDirectObject;
/** The kAutoGenerateReturnID AppleEvent code */
private static Integer kAutoGenerateReturnID;
/** The kAnyTransactionID AppleEvent code */
private static Integer kAnyTransactionID;
/** JVM constant for MRJ 2.0 */
private static final int MRJ_2_0 = 0;
/** JVM constant for MRJ 2.1 or later */
private static final int MRJ_2_1 = 1;
/** JVM constant for any Windows 9x JVM */
private static final int WINDOWS_9x = 2;
/** JVM constant for any Windows NT JVM */
private static final int WINDOWS_NT = 3;
/** JVM constant for any other platform */
private static final int OTHER = -1;
* The file type of the Finder on a Macintosh. Hardcoding "Finder" would keep non-U.S. English
* systems from working properly.
private static final String FINDER_TYPE = "FNDR";
* The creator code of the Finder on a Macintosh, which is needed to send AppleEvents to the
* application.
private static final String FINDER_CREATOR = "MACS";
/** The name for the AppleEvent type corresponding to a GetURL event. */
private static final String GURL_EVENT = "GURL";
* The first parameter that needs to be passed into Runtime.exec() to open the default web
* browser on Windows.
private static final String FIRST_WINDOWS_PARAMETER = "/c";
/** The second parameter for Runtime.exec() on Windows. */
private static final String SECOND_WINDOWS_PARAMETER = "start";
* The shell parameters for Netscape that opens a given URL in an already-open copy of Netscape
* on many command-line systems.
private static final String NETSCAPE_OPEN_PARAMETER_START = " -remote openURL(";
private static final String NETSCAPE_OPEN_PARAMETER_END = ")";
* The message from any exception thrown throughout the initialization process.
private static String errorMessage;
* An initialization block that determines the operating system and loads the necessary
* runtime data.
static
loadedWithoutErrors = true;
String osName = System.getProperty("os.name");
if ("Mac OS".equals(osName))
String mrjVersion = System.getProperty("mrj.version");
String majorMRJVersion = mrjVersion.substring(0, 3);
try
double version =
Double.valueOf(majorMRJVersion).doubleValue();
if (version == 2)
jvm = MRJ_2_0;
else if (version >= 2.1)
// For the time being, assume that all post-2.0 versions of MRJ work the same
jvm = MRJ_2_1;
else
loadedWithoutErrors = false;
errorMessage = "Unsupported MRJ version: " + version;
catch (NumberFormatException nfe)
loadedWithoutErrors = false;
errorMessage = "Invalid MRJ version: " + mrjVersion;
else if (osName.startsWith("Windows"))
{ //still needs verification against Win2K
if (osName.indexOf("9") != -1)
jvm = WINDOWS_9x;
else
jvm = WINDOWS_NT;
else
jvm = OTHER;
if (loadedWithoutErrors)
{ // if we haven't hit any errors yet
loadedWithoutErrors = loadClasses();
* This class should be never be instantiated; this just ensures so.
BrowserLauncher()
* Called by a static initializer to load any classes, fields, and methods required at runtime
* to locate the user's web browser.
* @return <code>true</code> if all intialization succeeded
* <code>false</code> if any portion of the initialization failed
private static boolean loadClasses()
switch (jvm)
case MRJ_2_0:
try
Class aeTargetClass = Class.forName("com.apple.MacOS.AETarget");
macOSErrorClass = Class.forName("com.apple.MacOS.MacOSError");
Class osUtilsClass = Class.forName("com.apple.MacOS.OSUtils");
Class appleEventClass = Class.forName("com.apple.MacOS.AppleEvent");
Class aeClass = Class.forName("com.apple.MacOS.ae");
aeDescClass = Class.forName("com.apple.MacOS.AEDesc");
aeTargetConstructor =
aeTargetClass.getDeclaredConstructor(
new Class []{ int.class });
appleEventConstructor =
appleEventClass.getDeclaredConstructor(
new Class[]{ int.class, int.class,
aeTargetClass, int.class, int.class });
aeDescConstructor = aeDescClass.getDeclaredConstructor(
new Class[]{ String.class });
makeOSType =
osUtilsClass.getDeclaredMethod("makeOSType",
new Class []{ String.class });
putParameter =
appleEventClass.getDeclaredMethod("putParameter",
new Class[]{ int.class, aeDescClass });
sendNoReply =
appleEventClass.getDeclaredMethod("sendNoReply",
new Class[]{ });
Field keyDirectObjectField =
aeClass.getDeclaredField("keyDirectObject");
keyDirectObject =
(Integer) keyDirectObjectField.get(null);
Field autoGenerateReturnIDField =
appleEventClass.getDeclaredField("kAutoGenerateReturnID");
kAutoGenerateReturnID =
(Integer) autoGenerateReturnIDField.get(null);
Field anyTransactionIDField =
appleEventClass.getDeclaredField("kAnyTransactionID");
kAnyTransactionID =
(Integer) anyTransactionIDField.get(null);
catch (ClassNotFoundException cnfe)
errorMessage = cnfe.getMessage();
return false;
catch (NoSuchMethodException nsme)
errorMessage = nsme.getMessage();
return false;
catch (NoSuchFieldException nsfe)
errorMessage = nsfe.getMessage();
return false;
catch (IllegalAccessException iae)
errorMessage = iae.getMessage();
return false;
break;
case MRJ_2_1:
try
mrjFileUtilsClass = Class.forName("com.apple.mrj.MRJFileUtils");
mrjOSTypeClass = Class.forName("com.apple.mrj.MRJOSType");
Field systemFolderField =
mrjFileUtilsClass.getDeclaredField("kSystemFolderType");
kSystemFolderType = systemFolderField.get(null);
findFolder =
mrjFileUtilsClass.getDeclaredMethod("findFolder",
new Class[]{ mrjOSTypeClass });
getFileType =
mrjFileUtilsClass.getDeclaredMethod("getFileType",
new Class[]{ File.class });
catch (ClassNotFoundException cnfe)
errorMessage = cnfe.getMessage();
return false;
catch (NoSuchFieldException nsfe)
errorMessage = nsfe.getMessage();
return false;
catch (NoSuchMethodException nsme)
errorMessage = nsme.getMessage();
return false;
catch (SecurityException se)
errorMessage = se.getMessage();
return false;
catch (IllegalAccessException iae)
errorMessage = iae.getMessage();
return false;
break;
return true;
* Attempts to locate the default web browser on the local system. Caches results so it
* only locates the browser once for each use of this class per JVM instance.
* @return The browser for the system. Note that this may not be what you would consider
* to be a standard web browser; instead, it's the application that gets called to
* open the default web browser. In some cases, this will be a non-String object
* that provides the means of calling the default browser.
private static Object locateBrowser()
if (browser != null)
return browser;
switch (jvm)
case MRJ_2_0:
try
Integer finderCreatorCode =
(Integer) makeOSType.invoke(null,
new Object[]{ FINDER_CREATOR });
Object aeTarget = aeTargetConstructor.newInstance(
new Object[]{ finderCreatorCode });
Integer gurlType = (Integer) makeOSType.invoke(null,
new Object[]{ GURL_EVENT });
Object appleEvent = appleEventConstructor.newInstance(
new Object[]{ gurlType, gurlType, aeTarget,
kAutoGenerateReturnID, kAnyTransactionID });
// Don't set browser = appleEvent because then the next time we call
// locateBrowser(), we'll get the same AppleEvent, to which we'll already have
// added the relevant parameter. Instead, regenerate the AppleEvent every time.
// There's probably a way to do this better; if any has any ideas, please let
// me know.
return appleEvent;
catch (IllegalAccessException iae)
browser = null;
errorMessage = iae.getMessage();
return browser;
catch (InstantiationException ie)
browser = null;
errorMessage = ie.getMessage();
return browser;
catch (InvocationTargetException ite)
browser = null;
errorMessage = ite.getMessage();
return browser;
case MRJ_2_1:
File systemFolder;
try
systemFolder = (File) findFolder.invoke(null,
new Object[]{ kSystemFolderType });
catch (IllegalArgumentException iare)
browser = null;
errorMessage = iare.getMessage();
return browser;
catch (IllegalAccessException iae)
browser = null;
errorMessage = iae.getMessage();
return browser;
catch (InvocationTargetException ite)
browser = null;
errorMessage = ite.getTargetException().getClass() +
": " + ite.getTargetException().getMessage();
return browser;
String[] systemFolderFiles = systemFolder.list();
// Avoid a FilenameFilter because that can't be stopped mid-list
for (int i = 0; i < systemFolderFiles.length; i++)
try
File file = new File(systemFolder,
systemFolderFiles);
if (!file.isFile())
continue;
Object fileType = getFileType.invoke(null,
new Object[]{ file });
if (FINDER_TYPE.equals(fileType.toString()))
browser = file.toString(); // Actually the Finder, but that's OK
return browser;
catch (IllegalArgumentException iare)
browser = browser;
errorMessage = iare.getMessage();
return null;
catch (IllegalAccessException iae)
browser = null;
errorMessage = iae.getMessage();
return browser;
catch (InvocationTargetException ite)
browser = null;
errorMessage = ite.getTargetException().getClass() +
": " + ite.getTargetException().
getMessage();
return browser;
browser = null;
break;
case WINDOWS_NT:
browser = "cmd.exe";
break;
case WINDOWS_9x:
browser = "command.com";
break;
case OTHER: //fall through
default:
browser = "netscape";
break;
return browser;
* Attempts to open the default web browser to the given URL.
* @param url The URL to open
* @throws IOException If the web browser could not be located or does not run
public static void openURL(String url) throws IOException
if (!loadedWithoutErrors)
throw new IOException("Exception in finding browser: " +
errorMessage);
Object browser = locateBrowser();
if (browser == null)
throw new IOException("Unable to locate browser: " +
errorMessage);
switch (jvm)
case MRJ_2_0:
Object aeDesc = null;
try
aeDesc = aeDescConstructor.newInstance(
new Object[]{ url });
putParameter.invoke(browser,
new Object[]{ keyDirectObject, aeDesc });
sendNoReply.invoke(browser, new Object[]{ });
catch (InvocationTargetException ite)
throw new IOException(
"InvocationTargetException while creating AEDesc: " +
ite.getMessage());
catch (IllegalAccessException iae)
throw new IOException(
"IllegalAccessException while building AppleEvent: " +
iae.getMessage());
catch (InstantiationException ie)
throw new IOException(
"InstantiationException while creating AEDesc: " +
ie.getMessage());
finally { aeDesc = null; // Encourage it to get disposed if it was created
browser = null; // Ditto
} break;
case MRJ_2_1:
Runtime.getRuntime().exec(
new String[]{ (String) browser, url });
break;
case WINDOWS_NT://fall through
case WINDOWS_9x:
Runtime.getRuntime().exec( new String[]{ (String) browser,
FIRST_WINDOWS_PARAMETER,
SECOND_WINDOWS_PARAMETER, url });
break;
case OTHER:
// Assume that we're on Unix and that Netscape is installed
// First, attempt to open the URL in a currently running session of Netscape
Process process =
Runtime.getRuntime().exec((String) browser +
NETSCAPE_OPEN_PARAMETER_START + url +
NETSCAPE_OPEN_PARAMETER_END);
try
int exitCode = process.waitFor();
if (exitCode != 0)
{ // if Netscape was not open
Runtime.getRuntime().exec(
new String[]{ (String) browser, url });
catch (InterruptedException ie)
throw new IOException(
"InterruptedException while launching browser: " +
ie.getMessage());
break;
default:
// This should never occur, but if it does, we'll try the simplest thing possible
Runtime.getRuntime().exec(
new String[]{ (String) browser, url });
break;
// Driver to test class
public static void main(String[] args) throws IOException
 BrowserLauncher br = new BrowserLauncher();
if (args.length != 1)
br.openURL("http://mail.lionbridge.com");
else
br.openURL(args[0]);

package com.pst.lmsgui.utils;
import java.io.File;
import java.io.IOException;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
* BrowserLauncher is a class that provides one static method, openURL, which opens the default
* web browser for the current user of the system to the given URL. It may support other
* protocols depending on the system -- mailto, ftp, etc. -- but that has not been rigorously
* tested and is not guaranteed to work.
* Yes, this is platform-specific code, and yes, it may rely on classes on certain platforms
* that are not part of the standard JDK. What we're trying to do, though, is to take something
* that's frequently desirable but inherently platform-specific -- opening a default browser --
* and allow programmers (you, for example) to do so without worrying about dropping into native
* code or doing anything else similarly evil.
* Anyway, this code is completely in Java and will run on all JDK 1.1(or better)-compliant systems without
* modification or a need for additional libraries. All classes that are required on certain
* platforms to allow this to run are dynamically loaded at runtime via reflection and, if not
* found, will not cause this to do anything other than returning an error when opening the
* browser.
* There are certain system requirements for this class, as it's running through Runtime.exec(),
* which is Java's way of making a native system call. Currently, this requires that a Macintosh
* have a Finder which supports the GURL event, which is true for Mac OS 8.0 and 8.1 systems that
* have the Internet Scripting AppleScript dictionary installed in the Scripting Additions folder
* in the Extensions folder (which is installed by default as far as I know under Mac OS 8.0 and
* 8.1), and for all Mac OS 8.5 and later systems. On Windows, it only runs under Win32 systems
* (Windows 95, 98, and NT 4.0, as well as later versions of all). On other systems, this drops
* back from the inherently platform-sensitive concept of a default browser and simply attempts
* to launch Netscape via a shell command.
* This code is Copyright 1999 by Eric Albert ([email protected]) and may be redistributed
* or modified in any form without restrictions as long as the portion of this comment from this
* paragraph through the end of the comment is not removed. The author requests that he be
* notified of any application, applet, or other binary that makes use of this code, but that's
* more out of curiosity than anything and is not required. This software includes no warranty.
public class BrowserLauncher {
* The Java virtual machine that we are running on. Actually, in most cases we only care
* about the operating system, but some operating systems require us to switch on the VM.
private static int jvm; /** The browser for the system */
private static Object browser;
* Caches whether any classes, methods, and fields that are not part of the JDK and need to
* be dynamically loaded at runtime loaded successfully.
* Note that if this is <code>false</code>, <code>openURL()</code> will always return an
* IOException.
private static boolean loadedWithoutErrors; /** The com.apple.mrj.MRJFileUtils class */
private static Class mrjFileUtilsClass; /** The com.apple.mrj.MRJOSType class */
private static Class mrjOSTypeClass; /** The com.apple.MacOS.MacOSError class */
private static Class macOSErrorClass; /** The com.apple.MacOS.AEDesc class */
private static Class aeDescClass; /** The <init>(int) method of com.apple.MacOS.AETarget */
private static Constructor aeTargetConstructor; /** The <init>(int, int, int) method of com.apple.MacOS.AppleEvent */
private static Constructor appleEventConstructor; /** The <init>(String) method of com.apple.MacOS.AEDesc */
private static Constructor aeDescConstructor; /** The findFolder method of com.apple.mrj.MRJFileUtils */
private static Method findFolder; /** The getFileType method of com.apple.mrj.MRJOSType */
private static Method getFileType; /** The makeOSType method of com.apple.MacOS.OSUtils */
private static Method makeOSType; /** The putParameter method of com.apple.MacOS.AppleEvent */
private static Method putParameter; /** The sendNoReply method of com.apple.MacOS.AppleEvent */
private static Method sendNoReply; /** Actually an MRJOSType pointing to the System Folder on a Macintosh */
private static Object kSystemFolderType; /** The keyDirectObject AppleEvent parameter type */
private static Integer keyDirectObject; /** The kAutoGenerateReturnID AppleEvent code */
private static Integer kAutoGenerateReturnID; /** The kAnyTransactionID AppleEvent code */
private static Integer kAnyTransactionID; /** JVM constant for MRJ 2.0 */
private static final int MRJ_2_0 = 0; /** JVM constant for MRJ 2.1 or later */
private static final int MRJ_2_1 = 1; /** JVM constant for any Windows 9x JVM */
private static final int WINDOWS_9x = 2; /** JVM constant for any Windows NT JVM */
private static final int WINDOWS_NT = 3; /** JVM constant for any other platform */
private static final int OTHER = -1; /** * The file type of the Finder on a Macintosh. Hardcoding "Finder" would keep non-U.S. English * systems from working properly. */
private static final String FINDER_TYPE = "FNDR"; /** * The creator code of the Finder on a Macintosh, which is needed to send AppleEvents to the * application. */
private static final String FINDER_CREATOR = "MACS"; /** The name for the AppleEvent type corresponding to a GetURL event. */
private static final String GURL_EVENT = "GURL"; /** * The first parameter that needs to be passed into Runtime.exec() to open the default web * browser on Windows. */
private static final String FIRST_WINDOWS_PARAMETER = "/c"; /** The second parameter for Runtime.exec() on Windows. */
private static final String SECOND_WINDOWS_PARAMETER = "start";
* The shell parameters for Netscape that opens a given URL in an already-open copy of Netscape
* on many command-line systems.
private static final String NETSCAPE_OPEN_PARAMETER_START = " -remote openURL(";
private static final String NETSCAPE_OPEN_PARAMETER_END = ")"; /** * The message from any exception thrown throughout the initialization process. */
private static String errorMessage; /** * An initialization block that determines the operating system and loads the necessary * runtime data. */
static {
loadedWithoutErrors = true;
String osName = System.getProperty("os.name");
if ("Mac OS".equals(osName)) {
String mrjVersion = System.getProperty("mrj.version");
String majorMRJVersion = mrjVersion.substring(0, 3);
try {
double version = Double.valueOf(majorMRJVersion).doubleValue();
if (version == 2) {
jvm = MRJ_2_0;
} else if (version >= 2.1) { // For the time being, assume that all post-2.0 versions of MRJ work the same
jvm = MRJ_2_1;
} else {
loadedWithoutErrors = false;
errorMessage = "Unsupported MRJ version: " + version;
} catch (NumberFormatException nfe) {
loadedWithoutErrors = false;
errorMessage = "Invalid MRJ version: " + mrjVersion;
} else if (osName.startsWith("Windows")) { //still needs verification against Win2K
if (osName.indexOf("9") != -1) {
jvm = WINDOWS_9x;
} else {
jvm = WINDOWS_NT;
} else {
jvm = OTHER;
if (loadedWithoutErrors) { // if we haven't hit any errors yet
loadedWithoutErrors = loadClasses();
} /** * This class should be never be instantiated; this just ensures so. */
BrowserLauncher() { }
* Called by a static initializer to load any classes, fields, and methods required at runtime * to locate the user's web browser.
* @return <code>true</code> if all intialization succeeded * <code>false</code> if any portion of the initialization failed */
private static boolean loadClasses() {
switch (jvm) {
case MRJ_2_0:
try {
Class aeTargetClass = Class.forName("com.apple.MacOS.AETarget");
macOSErrorClass = Class.forName("com.apple.MacOS.MacOSError");
Class osUtilsClass = Class.forName("com.apple.MacOS.OSUtils");
Class appleEventClass = Class.forName("com.apple.MacOS.AppleEvent");
Class aeClass = Class.forName("com.apple.MacOS.ae");
aeDescClass = Class.forName("com.apple.MacOS.AEDesc");
aeTargetConstructor = aeTargetClass.getDeclaredConstructor( new Class []{ int.class });
appleEventConstructor = appleEventClass.getDeclaredConstructor( new Class[]{ int.class, int.class, aeTargetClass, int.class, int.class });
aeDescConstructor = aeDescClass.getDeclaredConstructor( new Class[]{ String.class });
makeOSType = osUtilsClass.getDeclaredMethod("makeOSType", new Class []{ String.class });
putParameter = appleEventClass.getDeclaredMethod("putParameter", new Class[]{ int.class, aeDescClass });
sendNoReply = appleEventClass.getDeclaredMethod("sendNoReply", new Class[]{ });
Field keyDirectObjectField = aeClass.getDeclaredField("keyDirectObject");
keyDirectObject = (Integer) keyDirectObjectField.get(null);
Field autoGenerateReturnIDField = appleEventClass.getDeclaredField("kAutoGenerateReturnID");
kAutoGenerateReturnID = (Integer) autoGenerateReturnIDField.get(null);
Field anyTransactionIDField = appleEventClass.getDeclaredField("kAnyTransactionID");
kAnyTransactionID = (Integer) anyTransactionIDField.get(null);
} catch (ClassNotFoundException cnfe) {
errorMessage = cnfe.getMessage();
return false;
} catch (NoSuchMethodException nsme) {
errorMessage = nsme.getMessage();
return false;
} catch (NoSuchFieldException nsfe) {
errorMessage = nsfe.getMessage();
return false;
} catch (IllegalAccessException iae) {
errorMessage = iae.getMessage();
return false;
} break;
case MRJ_2_1:
try {
mrjFileUtilsClass = Class.forName("com.apple.mrj.MRJFileUtils");
mrjOSTypeClass = Class.forName("com.apple.mrj.MRJOSType");
Field systemFolderField = mrjFileUtilsClass.getDeclaredField("kSystemFolderType");
kSystemFolderType = systemFolderField.get(null);
findFolder = mrjFileUtilsClass.getDeclaredMethod("findFolder", new Class[]{ mrjOSTypeClass });
getFileType = mrjFileUtilsClass.getDeclaredMethod("getFileType", new Class[]{ File.class });
} catch (ClassNotFoundException cnfe) {
errorMessage = cnfe.getMessage();
return false;
} catch (NoSuchFieldException nsfe) {
errorMessage = nsfe.getMessage();
return false;
} catch (NoSuchMethodException nsme) {
errorMessage = nsme.getMessage();
return false;
} catch (SecurityException se) {
errorMessage = se.getMessage();
return false;
} catch (IllegalAccessException iae) {
errorMessage = iae.getMessage();
return false;
break;
return true;
* Attempts to locate the default web browser on the local system. Caches results so it
* only locates the browser once for each use of this class per JVM instance.
* @return The browser for the system. Note that this may not be what you would consider
* to be a standard web browser; instead, it's the application that gets called to
* open the default web browser. In some cases, this will be a non-String object
* that provides the means of calling the default browser.
private static Object locateBrowser() {
if (browser != null) {
return browser;
switch (jvm) {
case MRJ_2_0:
try {
Integer finderCreatorCode = (Integer) makeOSType.invoke(null, new Object[]{ FINDER_CREATOR });
Object aeTarget = aeTargetConstructor.newInstance( new Object[]{ finderCreatorCode });
Integer gurlType = (Integer) makeOSType.invoke(null, new Object[]{ GURL_EVENT });
Object appleEvent = appleEventConstructor.newInstance( new Object[]{ gurlType, gurlType, aeTarget, kAutoGenerateReturnID, kAnyTransactionID });
// Don't set browser = appleEvent because then the next time we call
// locateBrowser(), we'll get the same AppleEvent, to which we'll already have
// added the relevant parameter. Instead, regenerate the AppleEvent every time.
// There's probably a way to do this better; if any has any ideas, please let
// me know.
return appleEvent;
} catch (IllegalAccessException iae) {
browser = null;
errorMessage = iae.getMessage();
return browser;
} catch (InstantiationException ie) {
browser = null;
errorMessage = ie.getMessage();
return browser;
} catch (InvocationTargetException ite) {
browser = null;
errorMessage = ite.getMessage();
return browser;
case MRJ_2_1:
File systemFolder;
try {
systemFolder = (File) findFolder.invoke(null, new Object[]{ kSystemFolderType });
} catch (IllegalArgumentException iare) {
browser = null;
errorMessage = iare.getMessage();
return browser;
} catch (IllegalAccessException iae) {
browser = null;
errorMessage = iae.getMessage();
return browser;
} catch (InvocationTargetException ite) {
browser = null;
errorMessage = ite.getTargetException().getClass() + ": " + ite.getTargetException().getMessage();
return browser;
String[] systemFolderFiles = systemFolder.list();
// Avoid a FilenameFilter because that can't be stopped mid-list
for (int i = 0; i < systemFolderFiles.length; i++) {
try {
File file = new File(systemFolder, systemFolderFiles);
if (!file.isFile()) {
continue;
Object fileType = getFileType.invoke(null, new Object[]{ file });
if (FINDER_TYPE.equals(fileType.toString())) {
browser = file.toString();
// Actually the Finder, but that's OK return browser;
} catch (IllegalArgumentException iare) {
browser = browser;
errorMessage = iare.getMessage();
return null;
} catch (IllegalAccessException iae) {
browser = null;
errorMessage = iae.getMessage();
return browser;
} catch (InvocationTargetException ite) {
browser = null;
errorMessage = ite.getTargetException().getClass() + ": " + ite.getTargetException(). getMessage();
return browser;
browser = null;
break;
case WINDOWS_NT:
browser = "cmd.exe";
break;
case WINDOWS_9x:
browser = "command.com";
break;
case OTHER: //fall through
default:
browser = "netscape";
break;
return browser;
* Attempts to open the default web browser to the given URL.
* @param url The URL to open
* @throws IOException If the web browser could not be located or does not run
public static void openURL(String url) throws IOException {
if (!loadedWithoutErrors) {
throw new IOException("Exception in finding browser: " + errorMessage);
Object browser = locateBrowser();
if (browser == null) {
throw new IOException("Unable to locate browser: " + errorMessage);
switch (jvm) {
case MRJ_2_0:
Object aeDesc = null;
try {
aeDesc = aeDescConstructor.newInstance( new Object[]{ url });
putParameter.invoke(browser, new Object[]{ keyDirectObject, aeDesc });
sendNoReply.invoke(browser, new Object[]{ });
} catch (InvocationTargetException ite) {
throw new IOException( "InvocationTargetException while creating AEDesc: " + ite.getMessage());
} catch (IllegalAccessException iae) {
throw new IOException( "IllegalAccessException while building AppleEvent: " + iae.getMessage());
} catch (InstantiationException ie) {
throw new IOException( "InstantiationException while creating AEDesc: " + ie.getMessage());
} finally {
aeDesc = null; // Encourage it to get disposed if it was created
browser = null; // Ditto
} break;
case MRJ_2_1:
Runtime.getRuntime().exec( new String[]{ (String) browser, url });
break;
case WINDOWS_NT://fall through
case WINDOWS_9x:
Runtime.getRuntime().exec( new String[]{ (String) browser, FIRST_WINDOWS_PARAMETER, SECOND_WINDOWS_PARAMETER, url });
break;
case OTHER: // Assume that we're on Unix and that Netscape is installed
// First, attempt to open the URL in a currently running session of Netscape
Process process = Runtime.getRuntime().exec((String) browser + NETSCAPE_OPEN_PARAMETER_START + url + NETSCAPE_OPEN_PARAMETER_END);
try {
int exitCode = process.waitFor();
if (exitCode != 0) { // if Netscape was not open
Runtime.getRuntime().exec( new String[]{ (String) browser, url });
} catch (InterruptedException ie) {
throw new IOException( "InterruptedException while launching browser: " + ie.getMessage());
} break;
default: // This should never occur, but if it does, we'll try the simplest thing possible
Runtime.getRuntime().exec( new String[]{ (String) browser, url });
break;
// Driver to test class
public static void main(String[] args) throws IOException {
BrowserLauncher br = new BrowserLauncher();
if (args.length != 1) br.openURL("http://199.233.155.110:8080");
else br.openURL(args[0]);

What's the Successful Way of Taking Out Java Out Of Safari ?

Disabled Java in Safari Preferences .
Heck , Disabled Javascript too .
Disabled Plugins .
Disabled Extensions .
i still get :
Macintosh HD > Library > Java > Extensions > ( unable to view , it's only viewable with a System Administrator ( ie root ) that i don't have the username and/or password for )
Macintosh HD > Library > Java > JavaVirtualMachines > ( unable to view , it's only viewable with a System Administrator ( ie root ) that i don't have the username and/or password for )
Macintosh HD > Library > Internet Plug-Ins > JavaAppletPlugin.plugin
I have downloaded and updated OS X 10.8.3 Combo .
Java isn't listed anywhere in Systems Preferences . But if i click on the .jar 's and other Java .app 's , i can get the consoles to launch . I haven't tested if i can work it . I don't want to . I don't want it . I didn't download it . I didn't launch the .app either .
Apple logo > System Preferences... > ( No Java icon ) .
In Safari , it doesn't matter if i config the Preferences a hundred times . Safari after 5 to 10 seconds will load up the Reader in Blue highlight at the top right , which means some type of Adobe Reader is running in the background , which i haven't downloaded and installed and launched , also if i click it , it copies the webpage to a pdf look a like , which is pointless , and then i go back to the Internet Plug-ins and the Extensions in the Safari Preferences and it switches back in front of my eyes to what i set the configuration for . Like a real-time config edit on the fly . What is happening ?
As i write this Discussion Question , i am constantly being jumped around to write , as if ( if you have ever tested or used remote login and remote access ) there's a slight delay between you computer entry , and the result of the computer entry on the computer you're logged in to and remote accessing . Strange . Weird . Whatever you wanna call it . I got it . Very odd computer device behaviour .
Terminal and Terminal sudo su :
java -version
1.6 build
Java 6
i have already gone thru both scenarios of :
Downloading the Apple Approved Java 2013-002 scenario . Downloading , installing , launching , and then ultimately once i got it , Disabling it . It shows up in System Preferences Other with the Java icon . Also i have downloaded and installed the Java 7 latest Apple Approved Java , and Disabled it .
Java still persists .
And then if i Delete the Java .app 's and plugin 's , etc , etc , etc , what happens is ultimately i get the infamous Apple Windmill for about 5 seconds , and then asks , you are attempting to make changes , so Enter in your Administrator username and password , and i do , and the System Administrator ( ie root ) user that has this access , i do not know , so i am essentially stuck with a OS X with missing Software that can't be unistalled / reinstalled / repaired , and then i must Clean Install OS X in Recovery since it's inoperable .

And what's your thoughts on this ? http://support.apple.com/kb/HT5701 http://support.apple.com/kb/HT5734

I just updated my latest java but the update is causing problems with some externale devices. So i would like to uninstall this latest java update and get back the previous one. That should solve to problems with my external device

i just updated my latest java but the update is causing problems with some external devices. So i would like to uninstall this latest java update and get back the previous one. That should solve to problems with my external device.
Is this possible and how do i do that?
Anyone who responds thanks for that!
Juko
I am running
Hardware Overview:
Model Name:          Mac Pro
Model Identifier:          MacPro1,1
Processor Name:          Dual-Core Intel Xeon
Processor Speed:          2,66 GHz
Number of Processors:          2
Total Number of Cores:          4
L2 Cache (per Processor):          4 MB
Memory:          6 GB
Bus Speed:          1,33 GHz
Boot ROM Version:          MP11.005D.B00
SMC Version (system):          1.7f10
Serial Number (system):          CK7XXXXXXGP
Hardware UUID:          00000000-0000-1000-8000-0017F20F82F0
System Software Overview:
System Version:          Mac OS X 10.7.5 (11G63)
Kernel Version:          Darwin 11.4.2
Boot Volume:          Macintosh HD(2)
Boot Mode:          Normal
Computer Name:          Mac Pro van Juko de Vries
User Name:          Juko de Vries (jukodevries)
Secure Virtual Memory:          Enabled
64-bit Kernel and Extensions:          No
Time since boot:          11 days 20:39
Message was edited by Host

Java 6 you can't as Apple maintains it, and Java 7 you could if you uninstall it and Oracle provides the earlier version which they likely won't his last update fixed 37 remote exploits.
Java broken some software here and there, all you'll have to do is wait for a update from the other parties.

Java on Macintosh!!

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