#1189 confirmed

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"

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];

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.

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