Why jnlp

However, several users have reported the JNLP file not opening issue when trying to access the file. Even if you have the required software to open. Since the JNLP files are program-specific, your computer may fail to recognize the software required to execute the file. Java Network Launch Protocol JNLP format contains information such as the remote address for downloading a java program and other classes. JNLP files are used for launching and managing Java applications over a network.

To view and edit the file, you must have a text editor with the XML file format. To execute the file, your computer must have Java Runtime Environment installed. If you are using a bit edition of Windows, you may need to manually download and install the bit JRE version.

Several users have reportedly fixed the JNLP file not opening problem by installing the correct edition of the Java Runtime Environment. For more details, you could also refer to this case: Bug: Windows 10 Pro Education: This policy is blocked - its value will be ignored. Edge transition from Win32 to UWP. Why can't i type all the characters. Problem with updated Microsoft edge. The JNLP Server is usually implemented by a servlet, and is used only for some advanced features of the protocol.

See Figure 1 for the details of the launching process. Indeed, you may have different types of JNLP files, depending on what they describe. JNLP allows you to do many more things than specifying where application files should be downloaded. A richer client environment at runtime. A secure deployment solution. End users can trust a reliable JNLP Client because it will not allow any harmful behavior by client applications.

Versioning and incremental updates. Each resource can be tagged with a version id and managed accordingly. Incremental updates are obtained using the JARDiff format. Offline operation. Deployed applications can work even without a connection with the deployment server. Even if it is a somewhat minimal feature, it is widely used in practice. Some Java programs may need some platform-specific support for running. JNLP Client management console.

Although not part of the specifications, the JNLP Client is providing to end users a form of graphical configuration console for instance, the management console of Java Web Start. The capability of using platform-dependent facilities such as shortcuts, accelerators, and the like.

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Asked 11 years, 11 months ago. Active 1 year, 2 months ago. Viewed k times. Improve this question. I see this problem too -- really annoying. Add a comment. Active Oldest Votes. Have a look at what happens if you run javaws.

Improve this answer. As said above if I give "javaws somefile. A very common cause is a corrupted cache. The java control panel allows you to clean and even disable the cache use. This happened only in some Windows machines using even the last JRE to date 1.

After some digging i've found this thread, which gives the same setup and a great explanation. Great, that works. Ravindra Yadav Ravindra Yadav 5 5 bronze badges.

Lokesh Mehra 6 6 silver badges 16 16 bronze badges. Bob Lauer Bob Lauer 31 1 1 bronze badge. 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? New error log was saying following : Could not display the GUI. One more error log in application folder was now saying among other things : Caused by: java.

Community Bot 1 1 1 silver badge. Please add a summary of the page you are linking to. If the page goes away, your answer is useless. An excellent example of how hard it is when you are not told what the problem is by the JVM. I was also facing the same problem. To fix this to the following steps. A new window will open Select the jnlp file which you want and click the run button. Close the javaws viewer window. Sumith08 Sumith08 4 4 silver badges 14 14 bronze badges.

QuickSilver 3, 2 2 gold badges 10 10 silver badges 28 28 bronze badges. 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.