#1189 confirmed
KAWACHI Takashi

ContinuationEnhancer causes "java.lang.Error: Internal error" with cobertura

Reported by KAWACHI Takashi | October 26th, 2011 @ 03:39 PM | in 1.4.x

Framework version: 1.2.3, cobertura module 2.4
Platform you're using: Mac OS X Lion, java version "1.6.0_26"

Reproduction steps:
Download attached test.tgz, extract it, and execute "play deps && play precompile"

Details:
Application.java in attached file causes following error when precompiling or first execution on %dev mode.

00:32:14,243 ERROR ~ Cannot start in PROD mode with errors
java.lang.Error: Internal error
        at org.objectweb.asm.tree.analysis.SimpleVerifier.getElementValue(Unknown Source)
        at org.objectweb.asm.tree.analysis.BasicVerifier.binaryOperation(Unknown Source)
        at org.objectweb.asm.tree.analysis.Frame.execute(Unknown Source)
        at org.apache.commons.javaflow.bytecode.transformation.asm.MonitoringFrame.execute(MonitoringFrame.java:72)
        at org.objectweb.asm.tree.analysis.Analyzer.analyze(Unknown Source)
        at org.apache.commons.javaflow.bytecode.transformation.asm.ContinuationMethodAnalyzer$2.analyze(ContinuationMethodAnalyzer.java:128)
        at org.apache.commons.javaflow.bytecode.transformation.asm.ContinuationMethodAnalyzer.visitEnd(ContinuationMethodAnalyzer.java:139)
        at org.objectweb.asm.ClassReader.accept(Unknown Source)
        at org.objectweb.asm.ClassReader.accept(Unknown Source)
        at org.apache.commons.javaflow.bytecode.transformation.asm.AsmClassTransformer.transform(AsmClassTransformer.java:49)
        at org.apache.commons.javaflow.bytecode.transformation.asm.AsmClassTransformer.transform(AsmClassTransformer.java:41)
        at play.classloading.enhancers.ContinuationEnhancer.enhanceThisClass(ContinuationEnhancer.java:65)
        at play.CorePlugin.enhance(CorePlugin.java:293)
        at play.plugins.PluginCollection.enhance(PluginCollection.java:451)
        at play.classloading.ApplicationClasses$ApplicationClass.enhance(ApplicationClasses.java:208)
        at play.classloading.ApplicationClassloader.loadApplicationClass(ApplicationClassloader.java:157)
        at play.classloading.ApplicationClassloader.getAllClasses(ApplicationClassloader.java:417)
        at play.Play.preCompile(Play.java:566)
        at play.Play.init(Play.java:291)
        at play.server.Server.main(Server.java:158)

Application.java is simple, looks like:

public class Application extends Controller {
    public static void index() {
        HashMap<String, String[]> map;
        map = new HashMap<String, String[]>();
        map.put("key", new String[] { "v1", "v2" });
        String[] val = map.get("key");
        String str = val[0] + val[1];
        await(1);
        render(str);
    }
}

It doesn't cause an error when I commented out cobertura module, and "play deps".

I guess that code manipulations are conflicted between cobertura and ContinuationEnhancer.

Comments and changes to this ticket

Please Sign in or create a free account to add a new ticket.

With your very own profile, you can contribute to projects, track your activity, watch tickets, receive and update tickets through your email and much more.

New-ticket Create new ticket

Create your profile

Help contribute to this project by taking a few moments to create your personal profile. Create your profile »

<h2>Play framework</h2>

Play makes it easier to build Web applications with Java. It is a clean alternative to bloated Enterprise Java stacks. It focuses on developer productivity and targets RESTful architectures. Learn more on the <a href="http://www.playframework.org">http://www.playframework.org</a> website.<br><br>

<h2>Source code is hosted on github</h2>Check out our repository at <a href="http://github.com/playframework/play">http://github.com/playframework/play</a><br><br>

<h2>Contributing, creating a patch</h2> Please read the <a href="http://play.lighthouseapp.com/projects/57987/contributor-guide">contributor guide</a><br><br>

<h2>Reporting Security Vulnerabilities</h2> Since all bug reports are public, please report any security vulnerability directly to <em>guillaume dot bort at gmail dot com</em>.<br><br>

<h2>Creating a bug report</h2> Bug reports are incredibly helpful, so take time to report bugs and request features in our ticket tracker. We’re always grateful for patches to Play’s code. Indeed, bug reports with attached patches will get fixed far quickly than those without any.<br><br>

Please include as much relevant information as possible including the exact framework version you're using and a code snippet that reproduces the problem.<br><br>

Don't have too much expectations. Unless the bug is really a serious "everything is broken" thing, you're creating a ticket to start a discussion. Having a patch (or a branch on Github we can pull from) is better, but then again we'll only pull high quality branches that make sense to be in the core of Play.

Attachments

Pages