jsp java compile error on v5

[Vic Cekvenich]

I hava JAVA_HOME, tools.jar in common and permisions. I am running on a 
JDK1.5 64 bit for Redhat3.
I installed jRoller but it says it can't copile the jsp.
Hints?
Here is the error.
.V


description The server encountered an internal error () that prevented 
it from fulfilling this request.

exception
Compile failed; see the compiler error output for details.
        org.apache.tools.ant.taskdefs.Javac.compile(Javac.java:938)
        org.apache.tools.ant.taskdefs.Javac.execute(Javac.java:758)
        org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:402)
        org.apache.jasper.compiler.Compiler.compile(Compiler.java:492)
        org.apache.jasper.compiler.Compiler.compile(Compiler.java:471)
        org.apache.jasper.compiler.Compiler.compile(Compiler.java:459)
        org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
        org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
        org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
        org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
        javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        org.roller.presentation.filters.RequestFilter.doFilter(RequestFilter.java:154)
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