CODEWITHSUNDEEP
javajava-web-start
onesixtyfourth
onesixtyfourth

Reputation: 864

Invalid jar file

I have created a App Client application that I want to deploy through web start. The app works in Eclipse and I have self-signed the jar file within the ear file. When I click the link to download it I get the message:

java.io.IOException: Invalid jar file

What do I have to do to clear this?

Exception in thread "main" java.lang.NoClassDefFoundError: com/jme3/app/SimpleApplication
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:792)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:482)
Caused by: java.lang.ClassNotFoundException: com.jme3.app.SimpleApplication
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 13 more

[edit update] The jar file now runs locally after I used the export option to include dependant libraries. I have self-signed the jar file but I still get an invalid jar file response through webstart. The jars size is now 150mb does that cause an issue?

Upvotes: 0

Views: 7532

Answers (1)

andih
andih

Reputation: 5603

This happens when the JAR is by itself actually not an executabele JAR. A real executable JAR should have at least a class with a main() method and have it referenced in MANIFEST.MF. Important in Eclipse is that you export your JAR as runnable JAR file.

see Corrupt jar file or Make a .JAR file using classes, ERROR : invalid or corrupted file

Upvotes: 1

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