[jboss-user] [JBoss Seam] - IllegalAccessError with SUN's JVM and Seam Remoting

[marcioendo]

If you try to use Seam Remoting running it with SUN's JVM (1.5.08 and 1.5.09) you get an IllegalAccessError in the InterfaceGenerator class.


  | 17:40:44,187 ERROR [[Seam Remoting]] Servlet.service() for servlet Seam Remoting threw exception
  | java.lang.IllegalAccessError: tried to access method java.lang.StringBuilder.append(Ljava/lang/StringBuilder;)Ljava/lang
  | /StringBuilder; from class org.jboss.seam.remoting.InterfaceGenerator
  |         at org.jboss.seam.remoting.InterfaceGenerator.appendClassSource(InterfaceGenerator.java:584)
  |         at org.jboss.seam.remoting.InterfaceGenerator.appendTypeSource(InterfaceGenerator.java:414)
  |         at org.jboss.seam.remoting.InterfaceGenerator.appendComponentSource(InterfaceGenerator.java:330)
  |         at org.jboss.seam.remoting.InterfaceGenerator.generateComponentInterface(InterfaceGenerator.java:131)
  |         at org.jboss.seam.remoting.InterfaceGenerator.handle(InterfaceGenerator.java:101)
  |         at org.jboss.seam.remoting.SeamRemotingServlet.doPost(SeamRemotingServlet.java:77)
  |         at org.jboss.seam.remoting.SeamRemotingServlet.doGet(SeamRemotingServlet.java:62)
  |         at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
  |         at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  |         at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
  |         at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
  |         at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
  |         at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
  |         at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
  |         at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
  |         at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
  |         at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
  |         at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
  |         at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
  |         at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
  |         at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
  |         at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
  |         at java.lang.Thread.run(Thread.java:595)
  | 

Switching to IBM's JVM (1.5.0.3) and the problem does not happen.

Changing the lines (584~586) from (CVS-20061029):


  | typeSource.append(fields);
  | typeSource.append(accessors);
  | typeSource.append(mutators);
  | 

to:


  | typeSource.append(fields.toString());
  | typeSource.append(accessors.toString());
  | typeSource.append(mutators.toString());
  | 

and rebuilding SEAM solved the problem. 

Not a bug directly related to SEAM but I guess most people running Windows use SUN's JVM. 

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