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From warnockm <>
Subject Re: Lucene implmentation question
Date Wed, 19 Sep 2007 15:39:21 GMT

Thanks.  I did not realize that.  I fixed it by putting in the path, but am
getting the same error:

[root@localhost /]# /usr/java/default/bin/java
org.apache.lucene.demo.IndexFiles /opt/lucene/src/
Exception in thread "main" java.lang.NoClassDefFoundError:

Zach Bailey wrote:
> Are you aware you're using GCJ and not the Sun JVM/JDK? Your initial 
> paragraph seems to imply you think you are using a Sun product, but your 
> stack trace shows otherwise. Perhaps that has something to do with it - 
> you're not actually running the "java" you think you are?
> -Zach
> warnockm wrote:
>> This sounds like a simple problem but i cannot for the life of me figure
>> it
>> out.  Am running Fedora 7, JDK 1.6, and Tomcat 6.0 (although not being
>> used
>> for this).  I download Lucene and followed the instructions that said to
>> place the core and demo .jar files in my classpath.  My classpath is set
>> to
>> java_dir/ and java_dir/lib.  I placed the .jar files in java_dir/lib. 
>> Next,
>> i made sure my JAVA_HOME was set.  I then tried running the example under
>> the "Get started", which included indexing a folder from the shell.  I
>> ran
>> the command:
>> java org.apache.lucene.demo.IndexFiles /opt/lucene/src/
>> and got the following response:
>> Exception in thread "main" java.lang.NoClassDefFoundError:
>> org.apache.lucene.demo.IndexFiles
>>    at
>> Caused by: java.lang.ClassNotFoundException:
>> org.apache.lucene.demo.IndexFiles not found in
>> gnu.gcj.runtime.SystemClassLoader{urls=[file:/usr/java/default/,file:/usr/java/default/lib/],
>> parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}}
>>    at
>>    at gnu.gcj.runtime.SystemClassLoader.findClass(
>>    at java.lang.ClassLoader.loadClass(
>>    at java.lang.ClassLoader.loadClass(
>>    at
>> It sounds like it can't find my Lucene class, but even when i manually
>> point
>> the classpath to the lib folder, i get the error.  
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