jre

java runtime 6 with socks v5 proxy - Possible?

I have written an application that (amongst other things) runs a local service in windows that acts as a SOCKS v5 proxy for Firefox. I'm in the debugging phase right now and have found certain websites that don't work correctly. For example the Java Applet for Picture Uploading on Facebook.com fails because is is unable to lookup domain...

Where can I find old versions of the JDK and JRE?

To test compatibility, I need to find old versions of the JRE and JDK. Where can I find download links to these files? ...

What are best development practices for multi JRE version support?

Our application needs to support 1.5 and 1.6 JVMs. The 1.5 support needs to stay clear of any 1.6 JRE dependencies, whereas the 1.6 support needs to exploit 1.6-only features. When we change our Eclipse project to use a 1.5 JRE, we get all the dependencies flagged as errors. This is useful to see where our dependencies are, but is not u...

Why 2 bins for exe's in jdk?

When i am installing JDK(TM) Update 10, it installs the following four features : -> Development Tools -> Demos and Samples -> Source Code -> Java DB With last three features, i have no probz at all. Now Development tools contains :- java devlopment kit (to develop java applications, here jdk1.6.0_10) public jre (which is alway...

java -version returns old version

OS: Windows XP I am using yuicompressor-2.4.2 to compress some css before uploading to my server. But when i run it, the following exception appears: Exception in thread "main" java.lang.UnsupportedClassVersionError: com/yahoo/platform/yui/compressor/Bootstrap (Unsupported major.minor version 48.0) So I think it's beacause of the JRE...

Java unsupported version -- Classic Problem

If you have ever used java I think at least one times you ever got error about unsupported version. Everybody known how to fixed it, change JRE and etc. Today, I would like to know how to make jar file which can run any where (any JRE). ...

Domain name resolution not working in Java Applications on Ubuntu64 9.04 machine. All other software resolves DNS correctly.

I have an number of Java applications installed on an Ubuntu64 9.04 PC, and none of them can resolve domain names (there are multiple JRE's too - some of them are IBM products). If I put the domain name in the hosts file with it's associated IP address, then the Java apps work for those domains only. Every other non Java program - like p...

where can I get the latest JRE / JDK as a zip file, I mean, no exe installer

You may call me a maniac, but I like to be sure that just by copying the contents of the java folder and setting the environment variables, everything will work fine. So I usually run the installer in a virtual machine, zip the \java folder contents, go back to a snapshot of the virtual machine, and then unzip the compressed file. I co...

Installing IBM JRE on Windows (a non-IBM machine)

I'm developing a Java 5.0 application that connects to Websphere Application Server default messaging queues. My application will be deployed on Windows server (with sun JDK installed by default), in order to connect to the Websphere queues I have two choices: Using IBM JRE Using sun JRE, copying some IBM JRE's jars, setting some JVM ...

Java / Eclipse : How does Eclipse compile classes with only a JRE ?

I need to batch a compilation with a special JRE which has been "customized". Eclipse is able to compile the classes with this JRE, but I need to make a build script outside of Eclipse. What is the method used by Eclipse to generate the .class files without a JDK ? ...

Will JRE 1.4 support classes compiled with Java 1.5 & 1.6?

Will code compiled using 1.5 and 1.6 run on a 1.4 JRE? We weren't sure which Java versions the 1.4 JRE supports. We know that if the code in question implements 1.5 or 1.6 supported features then it definitely won't compile... and that there are some risks with "backwards compiling" but wasn't sure if the 1.4 JRE would refuse to even ...

Eclipse - Mac Os Default JRE missing

The list of installed JRE's is empty, when I click "add" the only options I'm given are - Execution Environment Description, Standard 1.1.x VM, Standard VM. There's no option for a MacOS Default JRE and choosing standard VM results in the usual "Standard VM not supported on MacOS". Eclipse Galileo, Mac OS X 10.5.8. Any suggestions muc...

Missing java.util.HashMap

Hey everyone, Is there any reason that I would be missing the java.util.HashMap package? I have java.util.Hashtable, but no HashMap... I have the most up to date JDK and JRE... Thanks! ...

Is it possible to specify where JVM's crash dumps go?

We have a desktop application using JNI that occasionally causes the JVM to crash. Luckily the JVM produces a hs_err_pidXXXX.log file, which is quite useful in debugging such errors. However, it always seems to go to the current working directory, and it's annoying to dig it from there, since our other log files all go to a specific "log...

Whats the work of JDK and JRE?

Hi, I have a confusion that what JRE is doin on the Background and what does the JDK doing. ...

What is causing the problem - I am not able launch JNLP aaplications using "Java Web Start" ?

Up until recently, I was able to launch/open JNLP files in Firefox using Java web start. Don't know what happened all of a sudden JNLP files stopped launching, a splash screen appears saying Java Starting... and then nothing happens. Even the Java Console in the browser and javacpl.cpl applet doesn't open. Tried all possibilities: remo...

can I run more than one JVM on my single PC?

Can I run more than one JVM? If yes then how can I find a particular class is loaded on which JVM? ...

Different implementations of ArrayList

We're getting this error java.lang.NullPointerException at java.util.ArrayList.<init>(Unknown Source) at de.mystuff.ExtendedArrayList.<init>(ExtendedArrayList.java:38) where ExtendedArrayList:38 is new ArrayList(new ArrayCollection<E>(data)); In short: the ArrayList constructor sometimes seems to choke on our home grown Col...

Java JRE 64-bit download for Windows?

I'm working on a web site project with a Java component and am currently testing for cross-browser compatibility. Most is fine but the Java part won't load on 64-bit browsers. Looks like I need a 64-bit JRE to test. Where does one download the (off-line) 64-bit Java runtime installer for Windows? The official download page is here: http...

Cannot find the JRE for some reason

I have the following error - and I am getting a 404 problem. I think they are related. Is this a class path error? Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre6\bin;.... ...