Java Web Start - downloads

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I would assume Java is upto date, but when you try to open a JNLP file, windows does not know which program to open it with. Then, if I specified the x64 javaws from the command line I was able to start the. Applications deployed with Java Web do not require a browser interface to operate.

Then, if I specified the x64 javaws from the command line I was able to start the. If you have Java already update it.

Insights and updates on Java SE and OpenJDK from the Java Platform Group Product Management Team - Then what I'd suggest is rolling back your JRE to an earlier version I'd go to Update 13 just because of the security issue I mentioned in my answer and see if you can run a JWS application at that point.

Don't know what happened all of a sudden JNLP files stopped launching, a splash screen appears saying Java Starting... Even the Java Console in the browser and javacpl. Done some googling for this problem, people suggested to start javaws. I am using WinXP SP3, and some of the screenshots below shows further info about my system. I can provide any other detail if required but please help me solve this problem. I know this is an older question but this past week I started to get a similar problem, so I leave here some notes regarding the solution that fits me. This happened only in some Windows machines using even the last JRE to date 1. The Java Web Start started to load but nothing happened and none of the previous solution attempts worked. After some digging i've found this thread, which gives the same setup and a great explanation. So, in conclusion, it was a memory problem in x86 JRE and since our JNLP's max heap was defined as 1024MB, we changed to 780MB as suggested and it was fixed. However, if you need more than 780MB, can always try launching in a x64 JRE version. Apply changes and try again your. ClearType, install4j and case of Java bug Java Do you know what ClearType font-smoothing technology in Windows has in common with Java programming language and one of the recommended frameworks? Nothing except that they were working together hard at making me miserable for few months. That got me really mad. I was blaming install4j during early hundred or so attempts to solve issue. Later I slowly understood that if it was that bugged for that long time — solution would have been created and googled. Tracing After shifting focus from install4j I decided to push Java framework. I was trying stable versions earlier so decided to go for non-stable 1. This actually fixed error messages but not crashes. I had also noticed that there was new error log created in directory with setup files. Previously I had only seen logs in Windows temporary directory. New error log was saying following : Could not display the GUI. This application needs access to an X Server. If you have access there is probably an X library missing. And was actually able to install in console mode. Now installed app was crashing. But it really got me thinking. One more error log in application folder was now saying among other things : Caused by: java. IllegalArgumentException: -60397977 incompatible with Text-specific LCD contrast key Which successfully googled me description of bug with Java unable to read non-standard ClearType registry setting. Solution I immediately launched ClearType Tuner from Control Panel and found setting showing gibberish number. After correcting it to proper one all problems with Java were instantly gone. Even minor and totally unrelated settings can launch deadly chain reactions. Links Jave Runtime Environment ClearType Tuner Woopra install4j If javacpl does not open and gives you Could not find the main class:, it could be that Java is confused because of changes in deployment. Delete that file and everything's fine. This bug seems to be 6 years old,. An app should be able to ignore properties that have become obsolete over time, shouldn't it? Is this an application to which you have the code? Java 6u14 included a change to the way it handles jar security that for us caused very similar issues. If your jars are signed and work with Java 6u13 or below, you might consider either refactoring your code to work around this update or requiring Java 6u13 or below. Unfortunately I don't recall exactly what we did to resolve the issue - it was panic mode at the time. Again, if you have the code you have tools to work with. You can put in System. Otherwise you might consider using a nice logger like log4j to get a better idea of the point of failure. You may also consider removing the application entirely and downloading it anew. Java Web Start has a Control Panel applet that allows you to see the URL your app is downloading from could be the wrong one , uninstall the app, set security options, etc. Then what I'd suggest is rolling back your JRE to an earlier version I'd go to Update 13 just because of the security issue I mentioned in my answer and see if you can run a JWS application at that point. You might also consider using JWS applications found on Sun's Java tutorial pages for your tests rather than programs from private vendors - Sun's apps are more likely to be simple and working. This resulted in the unable to write to cache detail. When I reset to defaults in the temporary files control applet, all worked fine. In my case, Netbeans automatically creates a. This caused a mismatch between the local. I had the environment variable set in the command prompt and it didn't appear in GUI. I'm not sure if setx command or register removal commands did the trick. Restart seems to be necessary after removing the variable.

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Any resulting features and timing of release of such features as determined by Oracle's review of roadmaps, are at the sole discretion of Oracle. This may be an obvious answer, but you should check to make sure what version of java java web start launcher download required. Summary: north Count: 0 of 1,500 characters The posting of advertisements, profanity, or personal attacks is prohibited. Overview Java Web Start is a Freeware software in the category Web Development developed by. Restart seems to be necessary after removing the variable. I had also noticed that there was new ring log created in directory with setup files. Don't know what happened all of a sudden JNLP files stopped launching, a splash screen appears saying Java Starting. Then, if I specified the x64 javaws from the command line I was able to start the. Advanced users may download via the Con Technology Network and should. Tracing After shifting focus from install4j I decided to push Java framework. I encourage users and developers to. Again, if you have the code you have tools to work with.