Emma code coverage -java 8

2019-05-27T01:36:23.696000Z

Hi
I am using Emmarun(java emmarun -cp . myApp.jar) to generate code coverage report for my project but its not working with java8. getting below error:

EMMA: no metadata collected at runtime [no reports generated] [EMMA v2.1, build 5214 (stable)] emmarun: [MAIN_CLASS_NOT_FOUND] application class [myApp.jar] could not be loaded

java.lang.IllegalStateException: CONSTANT_info: invalid tag value [18]

2019-04-09T18:53:28.478000Z

You must be using some lambda expressions or stream api of Java 8.
What helped me out of this mess is compiling my code with Java 7 to find those places and then you can either exclude them from instrumentation or re-write them without Java 8 :(

Check this out
https://stackoverflow.com/questions/30313255/reflections-java-8-invalid-constant-type

java.lang.IllegalStateException: CONSTANT_info: invalid tag value [18]

2018-04-18T10:07:04.605000Z

while integrating EMMA with Gradle i am facing this issue.
java.lang.IllegalStateException: CONSTANT_info: invalid
tag value [18]

Do we have any solution for this issue please let me know.

here is the script :

apply plugin: "emma"
configurations{
emma
}

dependencies{
emma "emma:emma:2.0.5312"
emma "emma:emma_ant:2.0.5312"
}

def emmaConvention = new EmmaPluginConvention(project)
project.convention.plugins.emma = emmaConvention

class EmmaPluginConvention{
def verbosityLevel = "info"
def reportPath;
def coverageFileName;
def tmpDir;
def instrDir;
def metaDataFilePath;

def emma(Closure close){
    close.delegate = this;
    close.run()
}

EmmaPluginConvention(Project project){
    reportPath          = "${project.reportsDir.absolutePath}/emma"
    coverageFileName    = "coverage"
    tmpDir              = "${project.buildDir}/tmp/emma"
    instrDir            = "${tmpDir}/instr"
    metaDataFilePath    = "${tmpDir}/metadata.emma"
}

}

test{
//setup JVM Arguments for emma coverage
jvmArgs "-Demma.coverage.out.file=${emmaConvention.metaDataFilePath}", "-Demma.coverage.out.merge=true"

//add 
doFirst{
    ant.taskdef( resource:"emma_ant.properties", classpath: configurations.emma.asPath)
    ant.path(id:"run.classpath"){
        pathelement(location:sourceSets.main.output.classesDir.absolutePath ) 
    }
    ant.emma(verbosity:"${emmaConvention.verbosityLevel}"){
        instr(merge:"true", destdir:"${emmaConvention.instrDir}", instrpathref:"run.classpath", metadatafile:"${emmaConvention.metaDataFilePath}"){
            instrpath{
                fileset(dir:sourceSets.main.classesDir.absolutePath, includes:"*.class")
            }
        }
    }
    setClasspath(files("${emmaConvention.instrDir}") + configurations.emma +  getClasspath())
}

doLast{
    ant.path(id:"src.path"){
        sourceSets.main.java.srcDirs.each{
            pathelement(location:it.absolutePath ) 
        }
    }
    ant.emma(enabled:"true"){

        report(sourcepathref:"src.path"){
            fileset(dir:"${emmaConvention.tmpDir}"){
                include(name:"*.emma")
            }
            txt(outfile:"${emmaConvention.reportPath}/coverage.txt")
            html(outfile:"${emmaConvention.reportPath}/coverage.html")
            xml(outfile:"${emmaConvention.reportPath}/coverage.xml")
        }
    }
}

}

Exception in thread "main" com.vladium.emma.EMMARuntimeException: unexpected fai lure: at com.vladium.emma.Command.exit(Command.java:237) at com.vladium.emma.instr.instrCommand.run(instrCommand.java:178)

2018-01-16T17:43:21.265000Z

Hello,

I would like to do code coverage of big java application, where around 500 jars file exists. Facing issue now. Can someone help me for this:
Mode: Offline Instrumentation
After executing below command, throwing this exception:
command: java -cp emma.jar emma instr -m overwrite -cp app1.jar

Error:
Exception in thread "main" com.vladium.emma.EMMARuntimeException: unexpected fai lure: at com.vladium.emma.Command.exit(Command.java:237) at com.vladium.emma.instr.instrCommand.run(instrCommand.java:178)

Thanks,
Vishal

Emma line coverage not appearing

2017-07-04T05:37:24.880000Z

Hi Team,

I am fetching emma coverage report however line coverage is not appearing in same. Can anyone please suggest any solution for same ?
I am getting class %, method % , block % only.

Can emma dump the execution trace of methods

2016-11-24T08:43:54.129000Z

Hi the EMMA world,

Can Emma dump the execution traces of methods when a test case is executed on the instrumented code? For example, dump the trace M_1, M_2, .. M_n. Here M_1 is the name of the covered method.

It seems EMMA does not support this after my search on the net. If this is indeed not supported, is it easy to extend based on the EMMA?

Thanks,
Ting Su

Emma don't work in iava 1.7， how to make it?

2016-10-24T11:54:42.025000Z

java -XX:-UseSplitVerifier emmarun -cp . Test

how to instrument nested jars

2016-04-04T23:53:25.256000Z

as mentioned, I have a jar file with nested jars inside. I need to instrument the nested jars, and I have no impact on this design (my job is to measure the coverage, not to alter the project).

The architecture of the root jar is something like

root.jar
--main.class
(and several other classes)
--jar folder
--nested1.jar
--nested2.jar
...

and I use offline instrumentation via ant:
<target>
<emma>
<instr>...</instr>
</emma>

<java>...</java>

<emma>
    <report>...</report>
</emma>

</target>

by default, only the main.class and the other classes in the root.jar are instrumented, and not the nested jar files. but I need the exact opposite of this. do you have any suggestions?

Emma don't work in iava 1.7， how to make it?

2016-03-21T03:51:40.160000Z

Emma don't work in iava 1.7， how to make it?

my env is:
jdeMacBook-Pro:etc lijing$ java -version
java version "1.7.0_75"
Java(TM) SE Runtime Environment (build 1.7.0_75-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.75-b04, mixed mode)

The Steps:
1. java emma instr -ip /data/www/rpd-service/WEB-INF/classes/com/XXX/processor/ -m overwrite

restart the web(tomcat), but it doesn't work:

the messages as follows:

＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊＊
2016-03-21 11:07:52,385 [localhost-startStop-1] ERROR org.springframework.web.context.ContextLoader - Context initialization failed
java.lang.ClassFormatError: Illegal local variable table length 179 in method com.XXXX.R000001.doExecute(Ljava/lang/Long;Ljava/util/Map;Ljava/util/Map;Ljava/util/Map;Ljava/util/Map;)V
at java.lang.Class.getDeclaredConstructors0(Native Method) ~[na:1.7.0_72]
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2585) ~[na:1.7.0_72]
at java.lang.Class.getDeclaredConstructors(Class.java:1906) ~[na:1.7.0_72]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.determineCandidateConstructors(AutowiredAnnotationBeanPostProcessor.java:229) ~[spring-beans-3.1.4.RELEASE.jar:3.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineConstructorsFromBeanPostProcessors(AbstractAutowireCapableBeanFactory.java:962) ~[spring-beans-3.1.4.RELEASE.jar:3.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:935) ~[spring-beans-3.1.4.RELEASE.jar:3.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:485) ~[spring-beans-3.1.4.RELEASE.jar:3.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456) ~[spring-beans-3.1.4.RELEASE.jar:3.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294) ~[spring-beans-3.1.4.RELEASE.jar:3.1.4.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225) ~[spring-beans-3.1.4.RELEASE.jar:3.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291) ~[spring-beans-3.1.4.RELEASE.jar:3.1.4.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193) ~[spring-beans-3.1.4.RELEASE.jar:3.1.4.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:607) ~[spring-beans-3.1.4.RELEASE.jar:3.1.4.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:925) ~[spring-context-3.1.4.RELEASE.jar:3.1.4.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:472) ~[spring-context-3.1.4.RELEASE.jar:3.1.4.RELEASE]
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:388) ~[spring-web-3.1.4.RELEASE.jar:3.1.4.RELEASE]
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:293) ~[spring-web-3.1.4.RELEASE.jar:3.1.4.RELEASE]
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111) [spring-web-3.1.4.RELEASE.jar:3.1.4.RELEASE]
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4994) [catalina.jar:7.0.57]
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5492) [catalina.jar:7.0.57]
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) [catalina.jar:7.0.57]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1575) [catalina.jar:7.0.57]
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1565) [catalina.jar:7.0.57]
at java.util.concurrent.FutureTask.run(FutureTask.java:262) [na:1.7.0_72]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_72]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_72]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_72]

dex error while instrumenting Android app with Emma

2015-11-30T14:31:27.108000Z

Hi everyone，

I try to instrument Android app with Emma. My steps are as follows:
1. getting jar with dex2jar
2. getting classes by decompressing the jar.
3. getting resources with apktool.
4. coping the classes under src and bin folders.
5. generating build.xml file with android update project --name project -t target -p projectfile
6. getting the debug version of the app with "ant debug"
7. cd bin, and instrument the classes with emma
8. converting .class into .dex file with dx --dex.
when I arrive the step 8, I get an error:!
UNEXPECTED TOP-LEVEL EXCEPTION:
com.android.dex.util.ExceptionWithContext:no such label

My build environment:
windows: win7
java :jdk1.7
ant: 1.9.6
dex2jar: 2.0
apktool:2..0.2
android sdk: 19

I have no idea why this error happens. Did anyone have met this problem or just give me some help?

Thanks so much.

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Emma code coverage -java 8

java.lang.IllegalStateException: CONSTANT_info: invalid tag value [18]

java.lang.IllegalStateException: CONSTANT_info: invalid tag value [18]

Exception in thread "main" com.vladium.emma.EMMARuntimeException: unexpected fai lure: at com.vladium.emma.Command.exit(Command.java:237) at com.vladium.emma.instr.instrCommand.run(instrCommand.java:178)

Emma line coverage not appearing

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Emma don't work in iava 1.7， how to make it?

how to instrument nested jars

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dex error while instrumenting Android app with Emma