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Michael Dürig edited comment on SLING-1877 at 11/17/10 6:33 PM: ---------------------------------------------------------------- The NPE is caused by the extended class path defaulting to null instead of an empty array. was (Author: mduerig): The NPE is cause by the extended class path defaulting to null instead of an empty array. > Scala scripting: NPE when scripting engine is used standalone > -------------------------------------------------------------- > > Key: SLING-1877 > URL: https://issues.apache.org/jira/browse/SLING-1877 > Project: Sling > Issue Type: Bug > Components: Scripting > Affects Versions: Scripting Scala 1.0.0 > Reporter: Michael Dürig > Attachments: SLING-1877.patch > > > When the Scala scripting engine is used stand alone (i.e. independently from > Sling), the eval method causes a NPE: > javax.script.ScriptException: Error executing script > at > org.apache.sling.scripting.scala.ScalaScriptEngine.eval(ScalaScriptEngine.scala:152) > at javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:247) > at > org.apache.sling.scripting.scala.ScalaScriptEngineTest.testScriptEngine(ScalaScriptEngineTest.scala:20) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at junit.framework.TestCase.runTest(TestCase.java:168) > at junit.framework.TestCase.runBare(TestCase.java:134) > at junit.framework.TestResult$1.protect(TestResult.java:110) > at junit.framework.TestResult.runProtected(TestResult.java:128) > at junit.framework.TestResult.run(TestResult.java:113) > at junit.framework.TestCase.run(TestCase.java:124) > at junit.framework.TestSuite.runTest(TestSuite.java:232) > at junit.framework.TestSuite.run(TestSuite.java:227) > at > org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83) > at > org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:62) > at > org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:140) > at > org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:127) > at org.apache.maven.surefire.Surefire.run(Surefire.java:177) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) > at java.lang.reflect.Method.invoke(Method.java:597) > at > org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:345) > at > org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1009) > Caused by: java.lang.NullPointerException > at scala.collection.mutable.ArrayOps$ofRef.length(ArrayOps.scala:99) > at scala.collection.SeqLike$class.size(SeqLike.scala:221) > at scala.collection.mutable.ArrayOps.size(ArrayOps.scala:34) > at scala.collection.mutable.Builder$class.sizeHint(Builder.scala:69) > at scala.collection.mutable.ArrayBuilder.sizeHint(ArrayBuilder.scala:24) > at scala.collection.TraversableLike$class.map(TraversableLike.scala:205) > at scala.collection.mutable.ArrayOps.map(ArrayOps.scala:34) > at > org.apache.sling.scripting.scala.interpreter.ScalaCompiler.classPath(ScalaCompiler.scala:38) > at > org.apache.sling.scripting.scala.interpreter.ScalaCompiler.rootLoader(ScalaCompiler.scala:42) > at > scala.tools.nsc.symtab.Definitions$definitions$.RootClass(Definitions.scala:31) > at > scala.tools.nsc.symtab.Definitions$definitions$.EmptyPackage(Definitions.scala:33) > at > scala.tools.nsc.symtab.Definitions$definitions$.EmptyPackageClass(Definitions.scala:34) > at > scala.tools.nsc.symtab.Definitions$definitions$.init(Definitions.scala:780) > at scala.tools.nsc.Global$Run.<init>(Global.scala:597) > at > org.apache.sling.scripting.scala.interpreter.ScalaInterpreter.compile(ScalaInterpreter.scala:126) > at > org.apache.sling.scripting.scala.interpreter.ScalaInterpreter.compile(ScalaInterpreter.scala:142) > at > org.apache.sling.scripting.scala.interpreter.ScalaInterpreter.compile(ScalaInterpreter.scala:152) > at > org.apache.sling.scripting.scala.ScalaScriptEngine$$anonfun$1.apply(ScalaScriptEngine.scala:113) > at > org.apache.sling.scripting.scala.ScalaScriptEngine$$anonfun$1.apply(ScalaScriptEngine.scala:113) > at > org.apache.sling.scripting.scala.ScalaScriptEngine.writeLocked(ScalaScriptEngine.scala:171) > at > org.apache.sling.scripting.scala.ScalaScriptEngine.eval(ScalaScriptEngine.scala:112) -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.