Why am I getting the following error when running Google App from eclipse?

Question

I did a search and found QuickTip: VerifyError with jdk 7:

If you are struggling with the following kind of error

java.lang.VerifyError: Expecting a stackmap frame at branch target 6 bla bla bla …

then a simple solution is to add the following default JVM argument -XX:-UseSplitVerifier

If you are doing it in eclipse, like i was, then goto Window -> Preferences -> Installed JREs -> and add the default parameter.

What does this setting do? Oracle just mentions that it a new type checker with StackMapTable attributes. Huh! Enjoy! It is Oracle now.

However, when I go to the Installed JREs settings it says An error has occurred when creating this preference page

I started learning about Google App Engine and began with Google's CodeLabEx0, and I think it worked out fine because I saw on my browser what I was supposed to see. But when I moved on to the second chapter CodeLabEx1, there's an error that won't allow me to create any products or items through the browser interface. Then I looked at the eclipse console and saw this:

Oct 28, 2011 11:40:30 PM com.google.apphosting.utils.jetty.JettyLogger info INFO: Logging to JettyLogger(null) via com.google.apphosting.utils.jetty.JettyLogger Oct 28, 2011 11:40:31 PM com.google.apphosting.utils.config.AppEngineWebXmlReader readAppEngineWebXml INFO: Successfully processed C:\Users\rock84\Downloads\CodeLabEx1\CodeLabEx1\war\WEB-INF/appengine-web.xml Oct 28, 2011 11:40:31 PM com.google.apphosting.utils.config.AbstractConfigXmlReader readConfigXml INFO: Successfully processed C:\Users\rock84\Downloads\CodeLabEx1\CodeLabEx1\war\WEB-INF/web.xml Oct 28, 2011 4:40:31 PM com.google.appengine.tools.development.DevAppServerImpl start INFO: The server is running at http://localhost:8888/ Oct 28, 2011 11:40:59 PM com.google.apphosting.utils.jetty.JettyLogger warn WARNING: Error for /product java.lang.VerifyError: Expecting a stackmap frame at branch target 48 in method com.google.appengine.codelab.ProductServlet.doPut(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V at offset 38     at java.lang.Class.getDeclaredConstructors0(Native Method)     at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)     at java.lang.Class.getConstructor0(Unknown Source)     at java.lang.Class.newInstance0(Unknown Source)     at java.lang.Class.newInstance(Unknown Source)     at org.mortbay.jetty.servlet.Holder.newInstance(Holder.java:153)     at org.mortbay.jetty.servlet.ServletHolder.initServlet(ServletHolder.java:428)     at org.mortbay.jetty.servlet.ServletHolder.getServlet(ServletHolder.java:339)     at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)     at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)     at com.google.appengine.tools.development.HeaderVerificationFilter.doFilter(HeaderVerificationFilter.java:35)     at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)     at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:58)     at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)     at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43)     at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)     at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:122)     at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)     at com.google.appengine.tools.development.BackendServersFilter.doFilter(BackendServersFilter.java:97)     at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)     at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)     at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)     at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)     at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)     at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)     at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:70)     at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)     at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:351)     at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)     at org.mortbay.jetty.Server.handle(Server.java:326)     at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)     at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)     at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547)     at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)     at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)     at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)     at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582) 

I have no idea what this could be. This is a fresh install of Eclipse 3.7 with the following installed software:

• Eclipse IDE for Java Developers
• Google App Engine Java SDK 1.5.5
• Gooogle Plugin for Eclipse 3.7
• Google Web Toolkit SDK 2.4.0

I'm on Windows 7 64-bit with Java version 1.7.0

Answer 1

Ok, I found the solution. It's what I wrote at the very top. Turns out I was adding the argument to the wrong eclipse installation. It works now.

"If you are struggling with the following kind of error java.lang.VerifyError: Expecting a stackmap frame at branch target 6 bla bla bla …. then a simple solution is to add the following default JVM argument -XX:-UseSplitVerifier If you are doing it in eclipse, like i was, then goto Window -> Preferences -> Installed JREs -> and add the default parameter. What does this setting do? Oracle just mentions that it a new type checker with StackMapTable attributes. Huh! Enjoy! It is Oracle now." Thanks to this dude: http://vikashazrati.wordpress.com/2011/10/09/quicktip-verifyerror-with-jdk-7/