[rules-users] Need Help: Errors while running FibonacciExample

[sumedha rubasinghe]

Hi,
your not using Sun JDK.
Type 'which java' @ the prompt. This will show you where your java command
lies. This should be taken from your JAVA_HOME.

Simply set JAVA_HOME variable & append $JAVA_HOME\bin to the beginning of
your path variable.

/sumedha



On 2/19/07, venkatesh devalapura nagabhushana <venkatesh.nag at wipro.com>
wrote:
>
>
> Hi,
>
> After successfully compiling the example code FibnacciExample.java, I
> tried to run it, I get the following error, let me know how to solve it:
>
> java FibonacciExample
> Exception in thread "main" java.lang.ExceptionInInitializerError
>    at java.lang.Class.initializeClass() (/usr/lib/libgcj.so.6.0.0)
>    at org.drools.semantics.java.RuleBuilder.<clinit>() (Unknown Source)
>    at java.lang.Class.initializeClass() (/usr/lib/libgcj.so.6.0.0)
>    at
> org.drools.compiler.PackageBuilder.addRule(org.drools.lang.descr.RuleDescr)
> (Unknown Source)
>    at
> org.drools.compiler.PackageBuilder.addPackage(
> org.drools.lang.descr.PackageDescr) (Unknown Source)
>    at
> org.drools.compiler.PackageBuilder.addPackageFromDrl(java.io.Reader)
> (Unknown Source)
>    at FibonacciExample.main(java.lang.String[]) (Unknown Source)
>    at gnu.java.lang.MainThread.call_main() (/usr/lib/libgcj.so.6.0.0)
>    at gnu.java.lang.MainThread.run() (/usr/lib/libgcj.so.6.0.0)
> Caused by: java.util.regex.PatternSyntaxException: At position 2 in
> regular expression pattern:
> expected end of character class
>         (.*)\bmodify\s*\(([^)]+)\)(.*)
>           ^
>    at java.util.regex.Pattern.Pattern(java.lang.String, int)
> (/usr/lib/libgcj.so.6.0.0)
>    at java.util.regex.Pattern.compile(java.lang.String, int)
> (/usr/lib/libgcj.so.6.0.0)
>    at org.drools.semantics.java.KnowledgeHelperFixer.<clinit>() (Unknown
> Source)   at java.lang.Class.initializeClass()
> (/usr/lib/libgcj.so.6.0.0)
>    ...8 more
>
> Is it require to place .drl file in the same directory as that of the
> source code ?
>
> Thanks,
> Venkatesh
>
>
>
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