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rajdeokumarsingh / slug-semweb-crawler

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NoClassDefFoundError running slug.sh in OSX #1

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
When I execute slug.sh in the slug folder of my home directory, I always get an 
error. I set the 
start parameters for the config and plan.

% slug.sh
Exception in thread "main" java.lang.NoClassDefFoundError: 
com/ldodds/slug/Scutter
Caused by: java.lang.ClassNotFoundException: com.ldodds.slug.Scutter
    at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:319)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:330)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:254)
    at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:399)

Using slug-0.3-RC1-src.zip on Mac OSX 10.6.1

Original issue reported on code.google.com by joshsimerman on 20 Nov 2009 at 3:30

GoogleCodeExporter commented 8 years ago 
Nevermind. I forgot to run ant to build the .jar first. It's time for bed.

Original comment by joshsimerman on 20 Nov 2009 at 3:36

GoogleCodeExporter commented 8 years ago 
I build the slug from the svn, running slug.sh gives me these errors, any help ?

Exception in thread "Thread-2" java.lang.RuntimeException:
java.lang.ClassNotFoundException: 
com.ldodds.slug.http.rdf.ModelDependentConsumerConsumer
    at com.ldodds.slug.Scutter.run(Scutter.java:159)
    at java.lang.Thread.run(Thread.java:636)
Caused by: java.lang.ClassNotFoundException:
com.ldodds.slug.http.rdf.ModelDependentConsumerConsumer
    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)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:186)
    at
com.ldodds.slug.framework.config.ComponentFactory.instantiateObject(ComponentFac
tory.java:72)
    at
com.ldodds.slug.framework.config.ComponentFactory.instantiate(ComponentFactory.j
ava:54)
    at
com.ldodds.slug.framework.config.ComponentFactory.instantiate(ComponentFactory.j
ava:128)
    at
com.ldodds.slug.framework.config.ComponentFactory.instantiateComponentsFor(Compo
nentFactory.java:159)
    at com.ldodds.slug.Scutter.run(Scutter.java:122)
    ... 1 more

Original comment by skbohra...@gmail.com on 4 Mar 2010 at 5:11

GoogleCodeExporter commented 8 years ago 
ditto,perhaps some class file is missing or something else bcoz the location of 
error
in the message have a class ModelDependentConsumer but not 
ModelDependentConsumerConsumer

Original comment by sanjeev1...@gmail.com on 21 Apr 2010 at 6:22

GoogleCodeExporter commented 8 years ago 
hey,got it! u will need to modify your configure.rdf file simply replace
modeldependentconsumerconsumer with modeldependentconsumer

Original comment by sanjeev1...@gmail.com on 11 May 2010 at 9:11

GoogleCodeExporter commented 8 years ago 
I still got an error:
************************
Exception in thread "Thread-2" java.lang.RuntimeException: 
java.lang.InstantiationException
    at com.ldodds.slug.Scutter.run(Scutter.java:158)
    at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.InstantiationException
    at sun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(InstantiationExceptionConstructorAccessorImpl.java:30)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
    at java.lang.Class.newInstance0(Class.java:355)
    at java.lang.Class.newInstance(Class.java:308)
    at com.ldodds.slug.framework.config.ComponentFactory.instantiateObject(ComponentFactory.java:74)
    at com.ldodds.slug.framework.config.ComponentFactory.instantiate(ComponentFactory.java:54)
    at com.ldodds.slug.framework.config.ComponentFactory.instantiate(ComponentFactory.java:128)
    at com.ldodds.slug.framework.config.ComponentFactory.instantiateComponentsFor(ComponentFactory.java:159)
    at com.ldodds.slug.Scutter.run(Scutter.java:121)
    ... 1 more
********************************

Can anyone help me on this?

Thanks in advanced.

Original comment by dndo...@gmail.com on 15 Oct 2012 at 5:52

GoogleCodeExporter commented 8 years ago 
ModelDependentConsumer is an abstract class thus you get InstantiationException 
when calling newInstance()
config.rdf should use some if its subclasses:
I believe the author's intent at that point was to use TaskGeneratingConsumer 
(as the consumer resource s called ref-follower)

Original comment by Alejandr...@gmail.com on 8 May 2013 at 1:50