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  1. Groovy
  2. GROOVY-8112

NPE in Groovy compiler when referencing @Field in aic

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.4.9
    • Fix Version/s: 2.4.13
    • Component/s: xforms
    • Labels:
      None
    • Environment:
      Windows 8 x64

      Description

      The following Groovy script causes NPE at compile time:

      Bug.groovy
      @Grapes([
          @Grab("org.slf4j:slf4j-api:1.7.22"),
          @Grab("org.apache.kafka:kafka-clients:0.10.2.0")
      ])
      
      import groovy.transform.Field
      import org.apache.kafka.clients.producer.Callback
      import org.apache.kafka.clients.producer.KafkaProducer
      import org.apache.kafka.clients.producer.ProducerRecord
      import org.apache.kafka.clients.producer.RecordMetadata
      import org.slf4j.Logger
      import org.slf4j.LoggerFactory
      
      @Field static final Logger logger = LoggerFactory.getLogger(Bug.class)
      
      wrapper {
      
          Properties config = new Properties()
          KafkaProducer kafkaProducer = new KafkaProducer<>(config)
      
          kafkaProducer.send(new ProducerRecord<>('topic', 'data'), new Callback() {
              @Override
              void onCompletion(RecordMetadata recordMetadata, Exception e) {
                  if (e != null) {
                      logger.error("Error sending to Kafka", e)
                  }
              }
          })
      }
      

      Full error message from groovyc:

      org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
      General error during class generation: NPE while processing Bug.groovy
      
      groovy.lang.GroovyRuntimeException: NPE while processing Bug.groovy
      	at org.codehaus.groovy.classgen.AsmClassGenerator.visitClass(AsmClassGenerator.java:258)
      	at org.codehaus.groovy.control.CompilationUnit$16.call(CompilationUnit.java:813)
      	at org.codehaus.groovy.control.CompilationUnit$16.call(CompilationUnit.java:830)
      	at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1053)
      	at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:591)
      	at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:569)
      	at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:546)
      	at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:525)
      	at org.codehaus.groovy.tools.FileSystemCompiler.compile(FileSystemCompiler.java:61)
      	at org.codehaus.groovy.tools.FileSystemCompiler.doCompilation(FileSystemCompiler.java:217)
      	at org.codehaus.groovy.tools.FileSystemCompiler.commandLineCompile(FileSystemCompiler.java:150)
      	at org.codehaus.groovy.tools.FileSystemCompiler.commandLineCompileWithErrorHandling(FileSystemCompiler.java:180)
      	at org.codehaus.groovy.tools.FileSystemCompiler.main(FileSystemCompiler.java:164)
      	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
      	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
      	at java.lang.reflect.Method.invoke(Method.java:498)
      	at org.codehaus.groovy.tools.GroovyStarter.rootLoader(GroovyStarter.java:109)
      	at org.codehaus.groovy.tools.GroovyStarter.main(GroovyStarter.java:131)
      Caused by: java.lang.NullPointerException
      	at org.codehaus.groovy.classgen.AsmClassGenerator.visitFieldExpression(AsmClassGenerator.java:1049)
      	at org.codehaus.groovy.classgen.asm.ClosureWriter.loadReference(ClosureWriter.java:135)
      	at org.codehaus.groovy.classgen.asm.InvocationWriter.loadVariableWithReference(InvocationWriter.java:611)
      	at org.codehaus.groovy.classgen.asm.InvocationWriter.writeAICCall(InvocationWriter.java:596)
      	at org.codehaus.groovy.classgen.asm.InvocationWriter.writeInvokeConstructor(InvocationWriter.java:571)
      	at org.codehaus.groovy.classgen.AsmClassGenerator.visitConstructorCallExpression(AsmClassGenerator.java:818)
      	at org.codehaus.groovy.ast.expr.ConstructorCallExpression.visit(ConstructorCallExpression.java:46)
      	at org.codehaus.groovy.classgen.asm.CallSiteWriter.makeCallSite(CallSiteWriter.java:303)
      	at org.codehaus.groovy.classgen.asm.InvocationWriter.makeCachedCall(InvocationWriter.java:307)
      	at org.codehaus.groovy.classgen.asm.InvocationWriter.makeCall(InvocationWriter.java:392)
      	at org.codehaus.groovy.classgen.asm.InvocationWriter.makeCall(InvocationWriter.java:104)
      	at org.codehaus.groovy.classgen.asm.InvocationWriter.makeInvokeMethodCall(InvocationWriter.java:88)
      	at org.codehaus.groovy.classgen.asm.InvocationWriter.writeInvokeMethod(InvocationWriter.java:459)
      	at org.codehaus.groovy.classgen.AsmClassGenerator.visitMethodCallExpression(AsmClassGenerator.java:767)
      	at org.codehaus.groovy.ast.expr.MethodCallExpression.visit(MethodCallExpression.java:66)
      	at org.codehaus.groovy.classgen.asm.StatementWriter.writeReturn(StatementWriter.java:589)
      	at org.codehaus.groovy.classgen.asm.OptimizingStatementWriter.writeReturn(OptimizingStatementWriter.java:319)
      	at org.codehaus.groovy.classgen.AsmClassGenerator.visitReturnStatement(AsmClassGenerator.java:616)
      	at org.codehaus.groovy.ast.stmt.ReturnStatement.visit(ReturnStatement.java:49)
      	at org.codehaus.groovy.classgen.asm.StatementWriter.writeBlockStatement(StatementWriter.java:84)
      	at org.codehaus.groovy.classgen.asm.OptimizingStatementWriter.writeBlockStatement(OptimizingStatementWriter.java:158)
      	at org.codehaus.groovy.classgen.AsmClassGenerator.visitBlockStatement(AsmClassGenerator.java:566)
      	at org.codehaus.groovy.ast.stmt.BlockStatement.visit(BlockStatement.java:71)
      	at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClassCodeContainer(ClassCodeVisitorSupport.java:104)
      	at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitConstructorOrMethod(ClassCodeVisitorSupport.java:115)
      	at org.codehaus.groovy.classgen.AsmClassGenerator.visitStdMethod(AsmClassGenerator.java:430)
      	at org.codehaus.groovy.classgen.AsmClassGenerator.visitConstructorOrMethod(AsmClassGenerator.java:387)
      	at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitMethod(ClassCodeVisitorSupport.java:126)
      	at org.codehaus.groovy.classgen.AsmClassGenerator.visitMethod(AsmClassGenerator.java:507)
      	at org.codehaus.groovy.ast.ClassNode.visitContents(ClassNode.java:1078)
      	at org.codehaus.groovy.ast.ClassCodeVisitorSupport.visitClass(ClassCodeVisitorSupport.java:53)
      	at org.codehaus.groovy.classgen.AsmClassGenerator.visitClass(AsmClassGenerator.java:233)
      	... 18 more
      
      1 error
      

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              • Assignee:
                paulk Paul King
                Reporter:
                avladykin Alexey Vladykin
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                Dates

                • Created:
                  Updated:
                  Resolved: