gwtp1.2.1.jar : java.lang.NoClassDefFoundError: org/apache/maven/artifact/versioning/ArtifactVersion

[Axel R]

Hi,

I am not using maven. I am using Eclipse and I can compile my project with gwtp1.21.jar...but if I try to lauch superDevmode or Devmode in Eclipse, I have the following error (and finally it saids that compilation fails):

[ERROR] Unexpected internal compiler error

java.lang.NoClassDefFoundError: org/apache/maven/artifact/versioning/ArtifactVersion

at java.lang.Class.getDeclaredConstructors0(Native Method)

at java.lang.Class.privateGetDeclaredConstructors(Class.java:2404)

        ...

Caused by: java.lang.ClassNotFoundException: org.apache.maven.artifact.versioning.ArtifactVersion

Do you if I should update an eclipse plugin or add an additional jar (dependency) to have my project compiling with gwtp1.21.jar ?

Thanks you,

Axel

[Tom]

Hi,

your are not alone ;-)

Same error here. No successful compiling or DevMode is possible.

[...]
         Compiling

            Compiling permutation 19...

   Compile of permutations succeeded

[ERROR] Unexpected internal compiler error

java.lang.NoClassDefFoundError: org/apache/maven/artifact/versioning/ArtifactVersion

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.newInstance(Unknown Source)

at com.google.gwt.core.ext.linker.impl.StandardLinkerContext.resetLinkers(StandardLinkerContext.java:528)

at com.google.gwt.core.ext.linker.impl.StandardLinkerContext.<init>(StandardLinkerContext.java:175)

at com.google.gwt.dev.Link.link(Link.java:173)

at com.google.gwt.dev.Compiler.run(Compiler.java:200)

at com.google.gwt.dev.Compiler.run(Compiler.java:132)

at com.google.gwt.dev.Compiler$1.run(Compiler.java:99)

at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:55)

at com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:50)

at com.google.gwt.dev.Compiler.main(Compiler.java:106)

Caused by: java.lang.ClassNotFoundException: org.apache.maven.artifact.versioning.ArtifactVersion

at java.net.URLClassLoader$1.run(Unknown Source)

at java.net.URLClassLoader$1.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

... 13 more

Regards
Tom

[Tom]

Hi,

I dropped "maven-artifact-3.2.1.jar" from http://search.maven.org/#browse%7C1473530134 into my WEB-INF\lib and compilation succeeded again.

Why do I need this. I don't use maven in my project... Does gwtp has a dependency to maven-artifact (or is it gwt 2.6)?

Regards,

Tom

[Christian Goudreau]

We should try to remove this. This is used in order to find if there's an update available for you. Like Google App Engine does.

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