Azureus java.lang.reflect.InvocationTargetException

[Mateusz Marzantowicz]

Binary package hint: azureus

Hello,

I've a problem when starting Azureus on my fresh Ubuntu 8.10 installation.

The only output from Azureus is:

file:/usr/share/java/Azureus2.jar ; file:/usr/share/java/swt-gtk-3.4.jar ; file:/home/mateusz/
changeLocale: *Default Language* != English (United States). Searching without country..
changeLocale: Searching for language English in *any* country..
changeLocale: no message properties for Locale 'English (United States)' (en_US), using 'English (default)'
java.lang.reflect.InvocationTargetException
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at org.gudy.azureus2.ui.common.Main.directLaunch(Main.java:229)
 at org.gudy.azureus2.ui.common.Main.main(Main.java:132)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at com.aelitis.azureus.launcher.MainExecutor$1.run(MainExecutor.java:37)
 at java.lang.Thread.run(Thread.java:595)
Caused by: java.lang.UnsupportedClassVersionError: Bad version number in .class file
 at java.lang.ClassLoader.defineClass1(Native Method)
 at java.lang.ClassLoader.defineClass(ClassLoader.java:620)
 at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
 at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
 at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
 at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
 at com.aelitis.azureus.launcher.classloading.PrimaryClassloader.loadClass(PrimaryClassloader.java:103)
 at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
 at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
 at org.gudy.azureus2.ui.swt.mainwindow.SWTThread.createInstance(SWTThread.java:61)
 at org.gudy.azureus2.ui.swt.mainwindow.Initializer.<init>(Initializer.java:110)
 at org.gudy.azureus2.ui.swt.Main.<init>(Main.java:84)
 at org.gudy.azureus2.ui.swt.Main.main(Main.java:216)
 ... 12 more
Start fails:
com.aelitis.azureus.core.AzureusCoreException: Azureus core already instantiated
 at com.aelitis.azureus.core.impl.AzureusCoreImpl.create(AzureusCoreImpl.java:99)
 at com.aelitis.azureus.core.AzureusCoreFactory.create(AzureusCoreFactory.java:46)
 at org.gudy.azureus2.ui.common.Main.main(Main.java:160)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:585)
 at com.aelitis.azureus.launcher.MainExecutor$1.run(MainExecutor.java:37)
 at java.lang.Thread.run(Thread.java:595)

I'm working on Ubuntu 8.10, with Sun Java:

java version "1.5.0_16"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_16-b02)
Java HotSpot(TM) 64-Bit Server VM (build 1.5.0_16-b02, mixed mode)

I installed Azureus via Synaptic package manager: package version is 3.1.1.0-3ubuntu3

[Stefano Maioli (smaioli)]

Thank you for reporting this issue.
It looks like that for some reason Azureus does not work with Java5.

Please try upgrading to a Java6 jre installing one of the following packages:
default-jre (wich will install openjdk-6-jre) or sun-java6-jre.

You can check that the correct jre is selected by running: sudo update-alternatives --config java.

(I think I'll fix this by depending on java6-runtime instead of java-runtime.)

[Mateusz Marzantowicz (mmarzantowicz)]

Ok,

it works pretty good with java6.

Thank you for your help.