Re: [rules-users] Need Help: Errors while running FibonacciExample
Hi Marcus,
Thanks for the response, I have not tried with Sun JDK, let me try it
out and keep you posted.
Thanks,
Venkatesh
On Mon, 2007-02-19 at 14:24 +0100, Marcus Ilgner wrote:
Hi Venkatesh,
On 2/19/07, venkatesh devalapura nagabhushana
<venkatesh.nag(a)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
What JDK are you using? "/usr/lib/libgcj.so.6.0.0" and
"gnu.java.lang"
makes me think that it's GNU Classpath or something like that. It is
quite possible that there are incompatibilities with that runtime.
Have you tried running it with Sun's JDK?
Best regards
Marcus
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