Widely-used object-oriented programming language, emphasizing portability.

learn more… | top users | synonyms

6
votes
3answers
10k views

How can I set one browser to use JRE 1.5 and another to use JRE 1.6?

I think this has to be a common issue, but I haven't found any clear solution. We have several products that are accessed via a browser (IE 7) with JRE version 1.5. We now need to be able to support ...
6
votes
1answer
6k views

ClassNotFoundException returned for all plugins

I am trying to use a Java applet (any Java Applet), but I always get a messages saying "Error. Click for details". When I do so, the pop-up says: Application Error ClassNotFoundException ...
6
votes
1answer
428 views

Why can't I start Eclipse and Minecraft at the same time?

I'm running Java SE Development Kit Update 25 (64-bit). It appears that I'm unable to run both Eclipse and Minecraft at the same time. This is really really weird, since I can easily start two ...
5
votes
8answers
8k views

How to schedule a java program to run Every day?

How can I schedule my java program(core java file) to run every day at a particular time? I want to schedule it in a Linux server and what is the same for Windows?
5
votes
3answers
3k views

Wrong java -version being reported

I am running Windows 7 Professional x64 and have the following Java versions installed: x64 C:\Program Files\Java jdk1.6.0_24 jdk1.7.0_04 jdk1.7.0_07 jre6 jre7 x86 C:\Program Files (x86)\Java ...
5
votes
5answers
18k views

install sun java 6 and sun java 7 side-by-side on linux (fedora 16) using rpm

This is what I would like to achieve, but I'm failing (I'm a newbie in Linux). I have a Fedora 16 box (64 bit) and would like to install multiple versions of oracle java (java 6 and java 7 for the ...
5
votes
2answers
9k views

What applications use Java on a desktop? [closed]

I get the "There's a update for Java" notification on my computer. And as its a security update, I feel like I should get the new update and each time, I need to go through an installation process and ...
5
votes
4answers
38k views

How to install java enviroment on Windows 8?

I want to try the newest Windows 8 64-bit. I installed it successfully. I tried to install one trading application called Interactive Brokers Trading Station which requires at least jre-1.4. I went ...
5
votes
3answers
750 views

Was/Is there a version of the Java VM for Windows 3.1?

...And can you still scare up a copy? This came up in a combination of curiosity and technical archeology today, and while there seems to have been one for the Win 3.1.x platform, I can't seem to get ...
5
votes
1answer
2k views

Why do the fonts in the Java application I'm running look different in Mac OS X than in Windows?

Shouldn't they look exactly the same? Or does Java not have its own fonts? Does it just map font names to OS fonts?
5
votes
4answers
8k views

Problem with remoted display of java applications

I'm trying to remote display Java based development environments, such as NetBeans and IntelliJ, from a linux machine to a windows machine. When I do this, the right click functionality of the ...
5
votes
1answer
2k views

Suppressing the “Picked up _JAVA_OPTIONS” message

I'm using _JAVA_OPTIONS to set some defaults for Java on RHEL. It works fine but now every time I start java I get the following message Picked up _JAVA_OPTIONS: -foo -bar -baz is it possible to ...
5
votes
3answers
15k views

Will Window RT have a JVM?

Java is supposed to be a way to write portable programs, and one person we work with wrote some of our buisness applications in Java. Doing some prelimiary compatibility checking and it seems that ...
5
votes
1answer
11k views

Running Java 32bit and 64bit on same computer

I ran into a rather puzzling problem, trying to install Vuze 4.2.0.2 on my Windows 7. I have a Java 6 JDK 64bit, but Vuze complains that it can't find a correct 32bit JRE. Yet, as far as I know it ...
5
votes
2answers
5k views

How to add Java System Runtime Parameters?

I'm given the following instructions: You must set the sun.lang.ClassLoader.allowArraySyntax system property to true by adding the following to the JVM arguments: ...
5
votes
3answers
1k views

java.exe -version and pushd?

I have noticed that when I run the following command Pushd \\RemoteMachine\C$ && java.exe -version I get the java version of the computer I am on. However when I run the pushd command with ...
5
votes
3answers
518 views

jEdit slow on Linux

Jedit is a great text editor, and I love that it is truly cross-platform. I usually use it on windows and just recently spent a long while working on some stuff on my linux box and noticed a large ...
5
votes
1answer
2k views

Firefox, how to force a specific plugin (i.e. Java) to always load through 'click-to-play'?

After I've updated Java to version 7 update 17 it no longer activates 'click-to-play' when I am browsing to a site that uses Java. I really like to put it back to 'click-to-play' list in light of ...
5
votes
1answer
2k views

How to Kill Java Process in Windows, without killing java.exe through command line?

I need to kill the process activemq-all-5.5.1.jar(....\app-launcher\target\lib\activemq-all-5.5.1.jar). I use taskkill /im java.exe, but it kills all other applications related with java. I need to ...
5
votes
2answers
10k views

How do I display the Java console?

I'm aware of the fact that you can set it to "show" in the Java control panel, but that's not what I'm asking about. I'm curious about the other options... "Do not start" is pretty straightforward, ...
4
votes
3answers
1k views

Where is Java hiding on my PC?

In my efforts to root out the mysterious Java 1.5.0_11 installation I have hiding somewhere on my PC, I completely uninstalled Java. Now, a search in Explorer turns up nothing, but on the command ...
4
votes
6answers
12k views

Unable to install Android for Windows 7 because JDK is not found

I have JDK SE7u4 installed in windows 7. I tried to install Android on Windows 7 using the installer_r18-windows.exe but no avail. The setup window showed the message saying that the Java SE JDK not ...
4
votes
2answers
11k views

Java 7 update 6 installation fails on Windows 7 when Chrome is default browser

I am configuring a brand new Lenovo U410 system with Windows 7 Home Premium for a user. I received the system direct from the shop. As part of the configuration I installed Java using the online ...
4
votes
5answers
13k views

Why there is no sun-java in Debian Wheezy and how can I fix this?

Sun's java is in Debian Lenny and Debian Squeeze repos (non-free) but no in wheezy1,2. Why? edit: after further research I found that java has been removed. reson: ROM; security issues and newer ...
4
votes
2answers
5k views

How to know the JVM path in a Linux system?

I want to copy some files in the subdirectories of the JVM path , java is already installed. How to know the JVM's path ?
4
votes
2answers
7k views

How to check Java version remotely

How can I check the Java version installed on a remote computer that I can't remote on. It's being used by someone so I can only check by \\computer-name\c$... Thank you!
4
votes
2answers
29k views

How to open a EAR/WAR file in windows 7

I have a few EAR/WAR files which are Java archives and I would like Windows 7 to open these files the way it opens a file with extension zip. So I open this war file and in the list of softwares ...
4
votes
2answers
4k views

Find path to current JVM

I need to find the path to the current Java VM running on my Windows machine. How can I do that?
4
votes
3answers
46k views

How to disable the Java update message balloon in Windows 7? [duplicate]

I've looked in the Java section of the Control Panel, but don't see an obvious way to disable the automatic message balloon that pop up in Windows 7 asking me to update my version of Java. How do I ...
4
votes
1answer
164 views

How do Java applets get loaded?

I had this conversation yesterday with a friend of mine and I was trying to explain to him that applets are precompiled code that is loaded by the JVM through the Java browser plugin. I am trying to ...
4
votes
3answers
5k views

In what directory should I install Jetty on Ubuntu Linux?

I've downloaded jetty-6.1.14.zip into my home directory on my Ubuntu 8.04 box. Where is the appropriate place to unzip it? I put it in /opt because /opt is supposedly for "storing random data that ...
4
votes
6answers
6k views

Android SDK emulator freezes on a Mac running OS X 10.6 Snow Leopard

I'm having trouble running the Android SDK on both of my Macs running OS X 10.6.2 Snow Leopard. This appears to be a 64-bit vs. 32-bit issue, as Snow Leopard now defaults to 64-bit everything, ...
4
votes
2answers
984 views

File only visible to cygwin, not windows?

Problem: We have a file created with keytool (from jdk 1.5) that is only visible with the ls command. When we do a dir, it's not there. Specifics: This file is owned by the user, all other files ...
4
votes
2answers
14k views

How can I make JDK 7 the default JDK in NetBeans?

I uninstalled JDK 1.6.26, then installed JDK 7 and changed my PATH to point to the new version. However when I now open NetBeans it shows me this error: Cannot locate java installation in ...
4
votes
3answers
167 views

Java installed, but “java -version” showed nothing, why?

I just bought a Win 7 PC, installed jdk1.6 and Netbeans, NB works fine, but when I did "java -version" in a command prompt, it can't find java, why ? How to fix it ? Edit : I thought the installation ...
4
votes
1answer
12k views

How to configure applet plugin for OpenJDK in Firefox on Linux?

I am using Kubuntu 10.04 with Firefox 3.6 from Mozilla's website and I use OpenJDK from the Ubuntu repsitories. I want to know how do I configure OpenJDK with the Firefox to view Java applets in the ...
4
votes
2answers
247 views

How do I toggle Java on/off in Safari browser?

In Safari preferences there is an option to disable Java which is nice but a bit cumbersome. Is there a plugin/addon/extension or an easy way to toggle Java on/off?
4
votes
2answers
1k views

Force reaping of java zombie processes on OS X 10.7

I have CrashPlan running on my MacBook Pro, and it went a little haywire. Essentially, it caused a fork bomb. Fortunately, I had an open Terminal window and was able to run this command: sudo ...
4
votes
1answer
623 views

Will the Java 7 JRE be pushed out as an automatic update to people running the Java 6 JRE? [closed]

I believe a precedent for this must exist... when the Java 6 JRE was released, were users of the Java 5 JRE automatically updated to Java 6 JRE? Or to put it another way, are automatic update capable ...
4
votes
4answers
7k views

Java issue (nonexistent Java Runtime)

I'm currently having an issue with playing Minecraft. I played Minecraft perfectly before I had an issue with my computer. Now when I open the minecraft.exe file (or try to open Java itself from the ...
4
votes
1answer
3k views

Silent Java update check

How to have automatic Java updates without jusched.exe process running all the time in the background and with control when a check for the update should occur?
4
votes
2answers
1k views

Streaming Desktop using FFMPEG in windows

How to stream Desktop using FFMPEG in windows?? I have tried ffmpeg -list_devices true -f dshow -i dummy and after that this to stream ffmpeg -f dshow -i video="Chicony USB 2.0 Camera" -r 30 ...
4
votes
3answers
3k views

Command Line from within Sublime Text

I recently switched from Notepad++ to Sublime Text 2, and it's amazing. There's one thing I'd appreciate and that's compiling my files from the same environment. Sublime text has a console and a ...
4
votes
1answer
584 views

How to get back to Oracle Java after installing OpenJDK

I've installed Oracle JDK using this guide. Then I accidently installed OpenJDK(tried to prepare PC to build Android). How do I get back to Oracle Java? Can I keep OpenJDK, but set Oracle Java as ...
4
votes
2answers
3k views

Revocation Information for this security certificate for this site is not available

I will randomly get a security alert window with a java logo that says the above, even if I'm not browsing the internet (I suspect java's auto-update or a number of other auto-updates for security ...
4
votes
2answers
7k views

How do I easily elevate when running a .jar file?

When trying to run an installer Jar file, I am getting an error saying that write access is denied to create a directory under the Program Files folder. Right click -> Run as Administrator is not ...
4
votes
1answer
2k views

Java Plugin a huge security risk? How to preseve Java plugin from privilege escalation?

Installing a regular Java plugin is IMHO a real security risk for non-IT people. Normally Java applets run in a sandbox and the applet cannot do anything harmful to your computer. If an applet, ...
4
votes
2answers
568 views

Good operating system/virtualization layer combination for running dual screen with XP in a vm instance?

I have a situation where my work computer has Outlook+Lotus Notes with draconian protection. Unfortunately this means that Eclipse development (meaning zillions of small files) gets very slow. I now ...
4
votes
1answer
313 views

Java in browser: application blocked (multiple domains)

Java made me to update to the latest version and now I get the "Application Blocked" error all the time. Alright, I have lowered the security (although it only allows for the "medium" level, omg), and ...
4
votes
2answers
3k views

Better syntax highlighting for Java in Vim?

I've found Vim to have fantastic syntax highlighting with my preferred color schemes for Ruby and Python, but whenever I need to write Java code, it's like I haven't even turned on highlighting in the ...