Classpath java.lang.NoClassDefFoundError externe Libary

[h4x0r]

Hallo,

Ich habe über Netbeans eine externe Libary eingebunden (basicplayer.jar) und versuche in meiner Klasse diese aufzurufen. In der selben anwendung habe ich das schonmal gemacht (hsqldb.jar) da hat es funktioniert.
Allerdings kann ich jetzt nicht auf die Libary zugreifen.

Bei import javazoom.jlgui.basicplayer.BasicPlayer;

kommt die exception:

Exception in thread "AWT-EventQueue-0" java.lang.ExceptionInInitializerError

Class.forName("javazoom.jlgui.basicplayer.BasicPlayer");

bringt mir:

Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory

in der das MANIFEST.MF file in basicplayer.jar:

Manifest-Version: 1.0
Ant-Version: Apache Ant 1.6.1
Created-By: JavaZOOM
Main-Class: javazoom.jlgui.basicplayer.BasicPlayer

was mache ich falsch?

 

[Landei]

Was meint denn deine IDE dazu, wenn du in deiner main-Methode [c]new javazoom.jlgui.basicplayer.BasicPlayer();[/c] aufrufst? Findet er den oder nicht?

 

[h4x0r]

In dem Editor kommt kein Fehler. In der Konsole kommt jedoch:

Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory
at javazoom.jlgui.basicplayer.BasicPlayer.<clinit>(Unknown Source)
at musiclib.MusicLibApp.startup(MusicLibApp.java:20)
at org.jdesktop.application.Application$1.run(Application.java:171)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:641)
at java.awt.EventQueue.access$000(EventQueue.java:84)
at java.awt.EventQueue$1.run(EventQueue.java:602)
at java.awt.EventQueue$1.run(EventQueue.java:600)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:611)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
... 17 more
BUILD SUCCESSFUL (total time: 1 second)

 

[Bernd Hohmann]

Class.forName("javazoom.jlgui.basicplayer.BasicPlayer");

bringt mir:

Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory

Der Player hat weitere Abhängigkeiten, zB. die genannte LogFactory aus den Apache Commons.

Bernd

 

[h4x0r]

Danke Bernd Hohmann,

das commons-logging-api-1.1.1.jar hat gefehlt!