GenericSignatureFormatError while deploying SOAP web services

Adrian Citu

This ticket will present some problem that I encountered using  JAXB.

Environment

  • OS: Windows 7
  • Servlet container : Tomcat 7.X
  • JRE: Sun Java 1.6.0_11
  • JAXB version: 2.2.1

Stack trace

Trying to deploy a web application containing (SOAP) web services  failed with the following stack trace:

WSSERVLET11: failed to parse runtime descriptor: 
java.lang.reflect.GenericSignatureFormatError
at sun.reflect.generics.parser.SignatureParser.error(SignatureParser.java:103)
at sun.reflect.generics.parser.SignatureParser.parseSimpleClassTypeSignature(SignatureParser.java:262)
at sun.reflect.generics.parser.SignatureParser.parseClassTypeSignatureSuffix(SignatureParser.java:270)
at sun.reflect.generics.parser.SignatureParser.parseClassTypeSignature(SignatureParser.java:244)
...
 at com.sun.xml.ws.transport.http.DeploymentDescriptorParser.parse(DeploymentDescriptorParser.java:147)
 at com.sun.xml.ws.transport.http.servlet.WSServletContextListener.contextInitialized(WSServletContextListener.java:124)
...

Cause of the exception

One of the web services had as return value a list of enums. The enum was defined something like :

public enum Season { WINTER, SPRING, SUMMER, FALL }

(no default constructor).

In order to fix the problem it must add a no parameter contructor; something like:

public enum Season { 
WINTER, SPRING, SUMMER, FALL 
 Season() {}
}