java - Google App Engine - Servlet (Error: Expecting a stackmap frame at branch target 44 in method test.) -


hi have th following servlet in new google app engine (sdk 1.6.6) project on eclipse:

package test;  import java.io.ioexception; import java.io.printwriter;  import javax.servlet.http.*;  @suppresswarnings("serial") public class teststorageservlet extends httpservlet {     public void doget(httpservletrequest req, httpservletresponse resp)             throws ioexception {         resp.setcontenttype("text/plain");         printwriter writer = resp.getwriter();         try {             writer.write("hello");         } catch (exception ex) {             writer.write("error: " + ex.getmessage());         } {              writer.close();         }     } }

such servlet working fine on tomcat (as normal java web project)m in google app engine project face following 500 error:

http error 500  problem accessing /teststorage. reason:      expecting stackmap frame @ branch target 44 in method test.teststorageservlet.doget(ljavax/servlet/http/httpservletrequest;ljavax/servlet/http/httpservletresponse;)v @ offset 25 caused by:  java.lang.verifyerror: expecting stackmap frame @ branch target 44 in method test.teststorageservlet.doget(ljavax/servlet/http/httpservletrequest;ljavax/servlet/http/httpservletresponse;)v @ offset 25     @ java.lang.class.getdeclaredconstructors0(native method)     @ java.lang.class.privategetdeclaredconstructors(class.java:2404)     @ java.lang.class.getconstructor0(class.java:2714)     @ java.lang.class.newinstance0(class.java:343)     @ java.lang.class.newinstance(class.java:325)     @ org.mortbay.jetty.servlet.holder.newinstance(holder.java:153)     @ org.mortbay.jetty.servlet.servletholder.initservlet(servletholder.java:428)     @ org.mortbay.jetty.servlet.servletholder.getservlet(servletholder.java:339)     @ org.mortbay.jetty.servlet.servletholder.handle(servletholder.java:487)     @ org.mortbay.jetty.servlet.servlethandler$cachedchain.dofilter(servlethandler.java:1166)     @ com.google.appengine.tools.development.headerverificationfilter.dofilter(headerverificationfilter.java:35)     @ org.mortbay.jetty.servlet.servlethandler$cachedchain.dofilter(servlethandler.java:1157)     @ com.google.appengine.api.blobstore.dev.serveblobfilter.dofilter(serveblobfilter.java:60)     @ org.mortbay.jetty.servlet.servlethandler$cachedchain.dofilter(servlethandler.java:1157)     @ com.google.apphosting.utils.servlet.transactioncleanupfilter.dofilter(transactioncleanupfilter.java:43)     @ org.mortbay.jetty.servlet.servlethandler$cachedchain.dofilter(servlethandler.java:1157)     @ com.google.appengine.tools.development.staticfilefilter.dofilter(staticfilefilter.java:122)     @ org.mortbay.jetty.servlet.servlethandler$cachedchain.dofilter(servlethandler.java:1157)     @ com.google.appengine.tools.development.backendserversfilter.dofilter(backendserversfilter.java:97)     @ org.mortbay.jetty.servlet.servlethandler$cachedchain.dofilter(servlethandler.java:1157)     @ org.mortbay.jetty.servlet.servlethandler.handle(servlethandler.java:388)     @ org.mortbay.jetty.security.securityhandler.handle(securityhandler.java:216)     @ org.mortbay.jetty.servlet.sessionhandler.handle(sessionhandler.java:182)     @ org.mortbay.jetty.handler.contexthandler.handle(contexthandler.java:765)     @ org.mortbay.jetty.webapp.webappcontext.handle(webappcontext.java:418)     @ com.google.appengine.tools.development.devappenginewebappcontext.handle(devappenginewebappcontext.java:78)     @ org.mortbay.jetty.handler.handlerwrapper.handle(handlerwrapper.java:152)     @ com.google.appengine.tools.development.jettycontainerservice$apiproxyhandler.handle(jettycontainerservice.java:369)     @ org.mortbay.jetty.handler.handlerwrapper.handle(handlerwrapper.java:152)     @ org.mortbay.jetty.server.handle(server.java:326)     @ org.mortbay.jetty.httpconnection.handlerequest(httpconnection.java:542)     @ org.mortbay.jetty.httpconnection$requesthandler.headercomplete(httpconnection.java:923)     @ org.mortbay.jetty.httpparser.parsenext(httpparser.java:547)     @ org.mortbay.jetty.httpparser.parseavailable(httpparser.java:212)     @ org.mortbay.jetty.httpconnection.handle(httpconnection.java:404)     @ org.mortbay.io.nio.selectchannelendpoint.run(selectchannelendpoint.java:409)     @ org.mortbay.thread.queuedthreadpool$poolthread.run(queuedthreadpool.java:582) powered jetty://

it seems compiling jdk7. http://java.dzone.com/articles/javalangverifyerror-expecting

try switching jdk6.

update: answer old , not relevant anymore. solution jdk7 seems to add -xx:-usesplitverifier jvm parameters.

see question more info: why getting following error when running google app eclipse?


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