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  1. Jenkins
  2. JENKINS-66600

Superclass' static fields are not accessible in subclass' static methods

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      Description

      When a static method of a subclass references a static field of a superclass in Pipeline script running in sandbox mode, a RejectedAccessException error gets thrown.

      Consider the following Pipeline script: 

      class Parent implements Serializable {
      
          static String text = "Some value"
      
      }
      
      class Child extends Parent {
          static void someMethod() {
              println text
          }
      }
      
      Child.someMethod()

      This produces the following stack trace in the console log: 

      org.jenkinsci.plugins.scriptsecurity.sandbox.RejectedAccessException: No such field found: field java.lang.Class text
       at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SandboxInterceptor.unclassifiedField(SandboxInterceptor.java:426)
       at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SandboxInterceptor.onGetProperty(SandboxInterceptor.java:410)
       at org.kohsuke.groovy.sandbox.impl.Checker$7.call(Checker.java:353)
       at org.kohsuke.groovy.sandbox.impl.Checker.checkedGetProperty(Checker.java:357)
       at com.cloudbees.groovy.cps.sandbox.SandboxInvoker.getProperty(SandboxInvoker.java:29)
       at com.cloudbees.groovy.cps.impl.PropertyAccessBlock.rawGet(PropertyAccessBlock.java:20)
       at Child.someMethod(WorkflowScript:13)
       at WorkflowScript.run(WorkflowScript:19)
       at ___cps.transform___(Native Method)
       at com.cloudbees.groovy.cps.impl.PropertyishBlock$ContinuationImpl.get(PropertyishBlock.java:74)
       at com.cloudbees.groovy.cps.LValueBlock$GetAdapter.receive(LValueBlock.java:30)
       at com.cloudbees.groovy.cps.impl.PropertyishBlock$ContinuationImpl.fixName(PropertyishBlock.java:66)
       at sun.reflect.GeneratedMethodAccessor510.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.impl.ConstantBlock.eval(ConstantBlock.java:21)
       at com.cloudbees.groovy.cps.Next.step(Next.java:83)
       at com.cloudbees.groovy.cps.Continuable$1.call(Continuable.java:174)
       at com.cloudbees.groovy.cps.Continuable$1.call(Continuable.java:163)
       at org.codehaus.groovy.runtime.GroovyCategorySupport$ThreadCategoryInfo.use(GroovyCategorySupport.java:129)
       at org.codehaus.groovy.runtime.GroovyCategorySupport.use(GroovyCategorySupport.java:268)
       at com.cloudbees.groovy.cps.Continuable.run0(Continuable.java:163)
       at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.access$001(SandboxContinuable.java:18)
       at org.jenkinsci.plugins.workflow.cps.SandboxContinuable.run0(SandboxContinuable.java:51)
       at org.jenkinsci.plugins.workflow.cps.CpsThread.runNextChunk(CpsThread.java:185)
       at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.run(CpsThreadGroup.java:400)
       at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup.access$400(CpsThreadGroup.java:96)
       at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:312)
       at org.jenkinsci.plugins.workflow.cps.CpsThreadGroup$2.call(CpsThreadGroup.java:276)
       at org.jenkinsci.plugins.workflow.cps.CpsVmExecutorService$2.call(CpsVmExecutorService.java:67)
       at java.util.concurrent.FutureTask.run(FutureTask.java:266)
       at hudson.remoting.SingleLaneExecutorService$1.run(SingleLaneExecutorService.java:139)
       at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
       at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:68)
       at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
       at java.util.concurrent.FutureTask.run(FutureTask.java:266)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
       at java.lang.Thread.run(Thread.java:748)

      When Groovy Sandbox is disabled, this code executes without an issue. The current workaround is to use a qualified reference to a static member.

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            Assignee:
            Unassigned Unassigned
            Reporter:
            kmagomedov Kamil Magomedov
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              Dates

              Created:
              Updated: