2010/6/23 Swindells, Thomas <TSwindells@nds.com>

What’s in your manifest in your jar file?

 

From the extracted stuff, as proposed my Eclipse's jar builder:
 
$ cat META-INF/MANIFEST.MF
Manifest-Version: 1.0
Created-By: 1.6.0_0 (Sun Microsystems Inc.)
Main-Class: rss.aws.init.Main


(additional newline above this line)

Also should it be CP=”drools/*:drools/lib/*:.” Rather than droos?


OK, typo, I'm using the same (correct) paths to /extra/drools-5.1.0.M2/ throughout, with echo $CP to confirm.

Happens with two different sets of Drools jars.

-W
 

Thomas

 

From: rules-users-bounces@lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Wolfgang Laun
Sent: 23 June 2010 15:45
To: rules-users@lists.jboss.org
Subject: [rules-users] execution using "java -jar x.jar ..." fails

 

The application works fine in Eclipse.

In Eclipse, I created a jar file x.jar from the .class and a few .drl files, and copied x.jar to /tmp/x/

Now, in /tmp/x
   CP="droos/*:drools/lib/*"
   java -cp "$CP" -jar dpvt.jar par...
This fails on the first attempt to access any class from a drools jar file.

In /tmp/x, I unpack x.jar and call
   CP="droos/*:drools/lib/*:."
   java -cp "$CP" rss.aws.init.Main par...
AND THIS WORKS!

So, what is different when starting a Java program with java -jar as opposed
to java x.y.Main?

The stack dump is not very informative:

java.lang.NoClassDefFoundError: org/drools/KnowledgeBaseFactory
    at rss.aws.engine.impl.DroolsEngine.setup(DroolsEngine.java:30)
    at rss.aws.init.Core.init(Core.java:51)
    at rss.aws.init.Core.getInstance(Core.java:16)
    at rss.aws.init.Main.<init>(Main.java:35)
    at rss.aws.init.Main.main(Main.java:191)
Caused by: java.lang.ClassNotFoundException: org.drools.KnowledgeBaseFactory
    at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:319)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:264)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:332)
    ... 5 more

 Any ideas?
-W



**************************************************************************************
This message is confidential and intended only for the addressee. If you have received this message in error, please immediately notify the postmaster@nds.com and delete it from your system as well as any copies. The content of e-mails as well as traffic data may be monitored by NDS for employment and security purposes. To protect the environment please do not print this e-mail unless necessary.

NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18 4EX, United Kingdom. A company registered in England and Wales. Registered no. 3080780. VAT no. GB 603 8808 40-00
**************************************************************************************

_______________________________________________
rules-users mailing list
rules-users@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-users