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@bandrzejczak
Created December 22, 2014 11:32
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Degraph exception
java.lang.IncompatibleClassChangeError: class de.schauderhaft.degraph.analysis.asm.GraphBuildingClassVisitor has interface org.objectweb.asm.ClassVisitor as super class
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at de.schauderhaft.degraph.analysis.asm.Analyzer$.de$schauderhaft$degraph$analysis$asm$Analyzer$$analyze$1(Analyzer.scala:26)
at de.schauderhaft.degraph.analysis.asm.Analyzer$$anonfun$analyze$1$$anonfun$apply$1.apply(Analyzer.scala:36)
at de.schauderhaft.degraph.analysis.asm.Analyzer$$anonfun$analyze$1$$anonfun$apply$1.apply(Analyzer.scala:35)
at scala.collection.immutable.Set$Set1.foreach(Set.scala:74)
at de.schauderhaft.degraph.analysis.asm.Analyzer$$anonfun$analyze$1.apply(Analyzer.scala:35)
at de.schauderhaft.degraph.analysis.asm.Analyzer$$anonfun$analyze$1.apply(Analyzer.scala:32)
at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33)
at scala.collection.mutable.ArrayOps$ofRef.foreach(ArrayOps.scala:108)
at de.schauderhaft.degraph.analysis.asm.Analyzer$.analyze(Analyzer.scala:32)
at de.schauderhaft.degraph.configuration.Configuration.createGraph(Configuration.scala:31)
at de.schauderhaft.degraph.check.Check$$anon$1.apply(Check.scala:49)
at de.schauderhaft.degraph.check.Check$$anon$1.apply(Check.scala:46)
at de.schauderhaft.degraph.check.hamcrest.HamcrestWrapper.matchesSafely(HamcrestWrapper.scala:8)
at org.hamcrest.TypeSafeMatcher.matches(TypeSafeMatcher.java:65)
at org.hamcrest.core.Is.matches(Is.java:27)
at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:12)
at org.junit.Assert.assertThat(Assert.java:865)
at org.junit.Assert.assertThat(Assert.java:832)
at pl.com.bms.leonbpm.PackageDependencySpec.shouldNotHaveCycles(PackageDependencySpec.java:18)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:74)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:211)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:67)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)
Process finished with exit code 255
@christophersandmann
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Got the same error in one of my projects when i introduced degraph today.
After playing around with the versions of the dependencies in pom.xml I´ve found a dependency which also contains the Interface named in the exception.

Tip: Use the "Open Type" dialog of your IDE to find all jar-files that contains "org.objectweb.asm.ClassVisitor" and see if your project has one of the jar-files as dependency.

@schauder: By the way, thanks for that awesome project.

@wrungel
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wrungel commented May 3, 2016

I had the same problem with a Maven project where I used asm version 3.1 dependency transitively.
But the degraph library uses org.ow2.asm:asm:jar:5.0.3 internally.
The solution for solving the version conflict was to exclude the transitive asm dependency:

<dependency>
    <groupId>com.example</groupId>
    <artifactId>foo</artifactId>
    <version>1.0</version>
    <exclusions>
        <!-- Causes exception: class de.schauderhaft.degraph.analysis.asm.GraphBuildingClassVisitor has interface org.objectweb.asm.ClassVisitor as super class -->
        <exclusion>
            <groupId>asm</groupId>
            <artifactId>asm</artifactId>
        </exclusion>
    </exclusions>
</dependency>
<dependency>
    <groupId>de.schauderhaft.degraph</groupId>
    <artifactId>degraph-check</artifactId>
    <version>0.1.2</version>
    <scope>test</scope>
</dependency>

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