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  1. Jenkins
  2. JENKINS-71760

Unable to create class instance when running Groovy script file

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Major Major
    • script-security-plugin
    • None
    • Jenkins 2.401.3
      * groovy:453.vcdb_a_c5c99890
      * permissive-script-security:0.7

      Steps:

      1. Run Jenkins in permisive mode.
      2. Create a simple job.
      3. Add Execute system Groovy script step with any Groovy class that creates it's instance.
      4. Add another Execute system Groovy script step running exact same code in a file.

       

      Attached example job and example Groovy file I'm running.

      For a quick reference this is the Groovy code:

      def out = getBinding().out;
      
      class Blog {
          String name
          String subject
           
          Blog() {}
           
          Blog(String name, String subject) {
              this.name = name
              this.subject = subject
          }
      
          def info(def out, String info) {
            out.println([info, this.name, this.subject]);
          }
      }
      
      println("Test test.");
      
      def blog = Blog.newInstance()
      blog.info(out, "Test empty");
      
      def blog2 = Blog.newInstance(['mrhaki', 'Groovy'] as Object[])
      blog2.info(out, "Test via array");
       
      def blog3 = Blog.newInstance([name:'mrhaki', subject: 'Groovy'])
      blog3.info(out, "Test with names"); 

      Even if creating classes is not supposed to be allowed, the message (in the log) still doesn't make sense to me. Personally, I believe it is wrong to forbid running Groovy from external files, as long as an admin allows it. I can do all kinds of bad stuff through shell anway.

      Log:

      Running as SYSTEM
      Building in workspace /var/www/jenkins-data/workspace/test groovy
      Test test.
      [Test empty, null, null]
      [Test via array, mrhaki, Groovy]
      [Test with names, mrhaki, Groovy]
      Test test.
      [Test empty, null, null]
      [Test via array, mrhaki, Groovy]
      ERROR: Build step failed with exception
      groovy.lang.MissingMethodException: No signature of method: java.lang.Class.newInstance() is applicable for argument types: (java.util.LinkedHashMap) values: [[name:mrhaki, subject:Groovy]]
      Possible solutions: newInstance(), newInstance(), newInstance([Ljava.lang.Object;), isInstance(java.lang.Object)
      	at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SandboxInterceptor.onMethodCall(SandboxInterceptor.java:159)
      	at org.kohsuke.groovy.sandbox.impl.Checker$1.call(Checker.java:178)
      	at org.kohsuke.groovy.sandbox.impl.Checker.checkedCall(Checker.java:182)
      	at org.kohsuke.groovy.sandbox.impl.Checker$checkedCall$0.callStatic(Unknown Source)
      	at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCallStatic(CallSiteArray.java:55)
      	at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callStatic(AbstractCallSite.java:197)
      	at Script1.run(Script1.groovy:27)
      	at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.GroovySandbox.runScript(GroovySandbox.java:195)
      	at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SecureGroovyScript.evaluate(SecureGroovyScript.java:443)
      	at org.jenkinsci.plugins.scriptsecurity.sandbox.groovy.SecureGroovyScript.evaluate(SecureGroovyScript.java:387)
      	at hudson.plugins.groovy.SystemGroovy.run(SystemGroovy.java:95)
      	at hudson.plugins.groovy.SystemGroovy.perform(SystemGroovy.java:59)
      	at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
      	at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:818)
      	at hudson.model.Build$BuildExecution.build(Build.java:199)
      	at hudson.model.Build$BuildExecution.doRun(Build.java:164)
      	at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:526)
      	at hudson.model.Run.execute(Run.java:1900)
      	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:44)
      	at hudson.model.ResourceController.execute(ResourceController.java:101)
      	at hudson.model.Executor.run(Executor.java:442)
      Build step 'Execute system Groovy script' marked build as failure
      Finished: FAILURE 

        1. config.xml
          3 kB
          Maciej Jaros
        2. miniClass.groovy
          0.6 kB
          Maciej Jaros

            Unassigned Unassigned
            nux Maciej Jaros
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              Created:
              Updated: