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  1. Jenkins
  2. JENKINS-40514

Typing Return Value of readMavenPom Causes ClassCastException

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      import org.apache.maven.model.Model

Model mavenProject = readMavenPom(file: pom)

      The above groovy script causes a ClassCastException when executing a Pipeline script:

      [Pipeline] echo
Marking build as failure due to the following error: org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object 'com.foo:bar-api:jar:0.6.1-201612151515.0777507' with class 'org.apache.maven.model.Model' to class 'org.apache.maven.model.Model'
[Pipeline] stage

          [JENKINS-40514] Typing Return Value of readMavenPom Causes ClassCastException

          Tim Eapen created issue -
          Tim Eapen made changes -
          Description Original: {code:java}
          import org.apache.maven.model.Model

          Model mavenProject = readMavenPom(file: pom)
          {code}

          The above groovy script causes a ClassCastException when executing a Pipeline script:

          {code:java}
          [Pipeline] echo
          Marking build as failure due to the following error: org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object 'com.rbc.rbcone.shared.authorization:rbcone-shared-authorization-api:jar:0.6.1-201612151515.0777507' with class 'org.apache.maven.model.Model' to class 'org.apache.maven.model.Model'
          [Pipeline] stage
          {code}
          		 New: {code:java}
          import org.apache.maven.model.Model

          Model mavenProject = readMavenPom(file: pom)
          {code}

          The above groovy script causes a ClassCastException when executing a Pipeline script:

          {code:java}
          [Pipeline] echo
          Marking build as failure due to the following error: org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object 'com.foo:bar-api:jar:0.6.1-201612151515.0777507' with class 'org.apache.maven.model.Model' to class 'org.apache.maven.model.Model'
          [Pipeline] stage
          {code}

          Tim Eapen added a comment - - edited

          Stacktrace for the above error. Lookse like the DefautlTypeTransformation class cannot cast the return object properly.

          hudson.remoting.ProxyException: org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object 'com.foo:bar-api:jar:0.6.1-201612161044.0777507' with class 'org.apache.maven.model.Model' to class 'org.apache.maven.model.Model'
	at org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.continueCastOnSAM(DefaultTypeTransformation.java:405)
	at org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.continueCastOnNumber(DefaultTypeTransformation.java:319)
	at org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.castToType(DefaultTypeTransformation.java:232)
	at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.castToType(ScriptBytecodeAdapter.java:603)
	at Unknown.Unknown(Unknown)
	at maven.purgeLocalRepository(/var/jenkins_home/jobs/rbcone-shared-authorization-api/branches/master/builds/16/libs/commons/vars/maven.groovy:9)
	at WorkflowScript.cleanup(WorkflowScript:33)
	at ___cps.transform___(Native Method)
	at com.cloudbees.groovy.cps.impl.LocalVariableBlock$LocalVariable.set(LocalVariableBlock.java:45)
	at com.cloudbees.groovy.cps.impl.AssignmentBlock$ContinuationImpl.assignAndDone(AssignmentBlock.java:70)
	at sun.reflect.GeneratedMethodAccessor288.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at com.cloudbees.groovy.cps.impl.ContinuationPtr$ContinuationImpl.receive(ContinuationPtr.java:72)
	at com.cloudbees.groovy.cps.Outcome.resumeFrom(Outcome.java:73)
	at com.cloudbees.groovy.cps.Continuable.run0(Continuable.java:146)
	at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.access$001(SandboxContinuable.java:18)
	at org.jenkinsci.plugins.workflow.cps.SandboxContinuable$1.call(SandboxContinuable.java:33)
	at org.jenkinsci.plugins.workflow.cps.SandboxContinuable$1.call(SandboxContinuable.java:30)
	at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.GroovySandbox.runInSandbox(GroovySandbox.java:108)
	at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.run0(SandboxContinuable.java:30)
	at org.jenkinsci.plugins.workflow.cps.CpsThread.runNextChunk(CpsThread.java:163)
	at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.run(CpsThreadGroup.java:324)
	at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.access$100(CpsThreadGroup.java:78)
	at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:236)
	at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:224)
	at org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService$2.call(CpsVmExecutorService.java:63)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at hudson.remoting.SingleLaneExecutorService$1.run(SingleLaneExecutorService.java:112)
	at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Finished: FAILURE

          Tim Eapen added a comment - - edited Stacktrace for the above error. Lookse like the DefautlTypeTransformation class cannot cast the return object properly. hudson.remoting.ProxyException: org.codehaus.groovy.runtime.typehandling.GroovyCastException: Cannot cast object 'com.foo:bar-api:jar:0.6.1-201612161044.0777507' with class 'org.apache.maven.model.Model' to class 'org.apache.maven.model.Model' at org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.continueCastOnSAM(DefaultTypeTransformation.java:405) at org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.continueCastOnNumber(DefaultTypeTransformation.java:319) at org.codehaus.groovy.runtime.typehandling.DefaultTypeTransformation.castToType(DefaultTypeTransformation.java:232) at org.codehaus.groovy.runtime.ScriptBytecodeAdapter.castToType(ScriptBytecodeAdapter.java:603) at Unknown.Unknown(Unknown) at maven.purgeLocalRepository(/ var /jenkins_home/jobs/rbcone-shared-authorization-api/branches/master/builds/16/libs/commons/vars/maven.groovy:9) at WorkflowScript.cleanup(WorkflowScript:33) at ___cps.transform___(Native Method) at com.cloudbees.groovy.cps.impl.LocalVariableBlock$LocalVariable.set(LocalVariableBlock.java:45) at com.cloudbees.groovy.cps.impl.AssignmentBlock$ContinuationImpl.assignAndDone(AssignmentBlock.java:70) at sun.reflect.GeneratedMethodAccessor288.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.cloudbees.groovy.cps.impl.ContinuationPtr$ContinuationImpl.receive(ContinuationPtr.java:72) at com.cloudbees.groovy.cps.Outcome.resumeFrom(Outcome.java:73) at com.cloudbees.groovy.cps.Continuable.run0(Continuable.java:146) at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.access$001(SandboxContinuable.java:18) at org.jenkinsci.plugins.workflow.cps.SandboxContinuable$1.call(SandboxContinuable.java:33) at org.jenkinsci.plugins.workflow.cps.SandboxContinuable$1.call(SandboxContinuable.java:30) at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.GroovySandbox.runInSandbox(GroovySandbox.java:108) at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.run0(SandboxContinuable.java:30) at org.jenkinsci.plugins.workflow.cps.CpsThread.runNextChunk(CpsThread.java:163) at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.run(CpsThreadGroup.java:324) at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.access$100(CpsThreadGroup.java:78) at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:236) at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:224) at org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService$2.call(CpsVmExecutorService.java:63) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at hudson.remoting.SingleLaneExecutorService$1.run(SingleLaneExecutorService.java:112) at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang. Thread .run( Thread .java:745) Finished: FAILURE

          medy belmokhtar added a comment -

          Same issue

          jenkins 2.37, Pipeline 2.4 and Pipeline Utility Steps 1.2.2

          medy belmokhtar added a comment - Same issue jenkins 2.37, Pipeline 2.4 and Pipeline Utility Steps 1.2.2

          Sascha Volkenandt added a comment -

          Ditto with Jenkins 2.19.1, Pipeline 2.4 and Pipeline Utility Steps 1.2.2

          It used to work though with 2.19.1, Pipeline 2.4 and Pipeline Utility Steps 1.1.6

          Sascha Volkenandt added a comment - Ditto with Jenkins 2.19.1, Pipeline 2.4 and Pipeline Utility Steps 1.2.2 It used to work though with 2.19.1, Pipeline 2.4 and Pipeline Utility Steps 1.1.6

          Andrew Bayer added a comment -

          This sounds like http://stackoverflow.com/questions/34068168/groovy-binding-cannot-cast-object-with-class-custompackage-customclass-to-cla - could you try doing def mavenProject = readMavenPom(file: pom) instead of Model mavenProject ... and see if that helps?

          Andrew Bayer added a comment - This sounds like http://stackoverflow.com/questions/34068168/groovy-binding-cannot-cast-object-with-class-custompackage-customclass-to-cla  - could you try doing def mavenProject = readMavenPom(file: pom) instead of Model mavenProject ... and see if that helps?
          Jesse Glick made changes -
          Component/s New: pipeline-utility-steps-plugin [ 21135 ]
          Component/s Original: pipeline [ 21692 ]

          Jesse Glick added a comment -

          Perhaps some other plugin is also loading maven-core. Probably maven-plugin.

          I would not recommend importing org.apache.maven.model.* classes; use dynamic typing.

          Or just avoid the readMavenPom step altogether, and use something like

          def version = sh script: '''
mvn help:evaluate -Dexpression=project.version | perl -n -e 'print $1 if /^([0-9.]+(-SNAPSHOT)?)$/'
''', returnStdout: true

          Jesse Glick added a comment - Perhaps some other plugin is also loading maven-core . Probably maven-plugin . I would not recommend importing org.apache.maven.model.* classes; use dynamic typing. Or just avoid the readMavenPom step altogether, and use something like def version = sh script: ''' mvn help:evaluate -Dexpression=project.version | perl -n -e 'print $1 if /^([0-9.]+(-SNAPSHOT)?)$/' ''', returnStdout: true
          Jesse Glick made changes -
          Link New: This issue is duplicated by JENKINS-40432 [ JENKINS-40432 ]

          Michael Düsterhus added a comment -

          I have the same problem. def mavenProject works, but Model mavenProject throws the same exception.

          Michael Düsterhus added a comment - I have the same problem. def mavenProject works, but Model mavenProject throws the same exception.

            Unassigned Unassigned
            timeapen Tim Eapen
            Votes:
            3 Vote for this issue
            Watchers:
            9 Start watching this issue

              Created:
              Updated: