Error while preview the component

gopan

I am getting the following error while preview my component.
Can anyone point out the problem. Thanks in advance...

javax.servlet.ServletException: Servlet execution threw an exception
com.interwoven.ui.base.impl.auth.AuthenticationFilter.doFilter(AuthenticationFilter.java:204)
com.interwoven.ui.base.util.SetRequestEncodingFilter.doFilter(SetRequestEncodingFilter.java:105)


root cause

java.lang.ClassFormatError: Truncated class file
java.lang.ClassLoader.defineClass1(Native Method)
java.lang.ClassLoader.defineClass(ClassLoader.java:620)