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  1. JDK
  2. JDK-8212586

NullPointerException when compile generic ParameterizedTypeReference

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P3
    • Resolution: Duplicate
    • Affects Version/s: 8, 10.0.2, 11.0.1, 12
    • Fix Version/s: 12
    • Component/s: tools
    • Subcomponent:
    • CPU:
      x86_64
    • OS:
      generic

      Description

      ADDITIONAL SYSTEM INFORMATION :
      Windows 10, JDK 10.0.2, IntelliJ IDEA 2018.2.5

      A DESCRIPTION OF THE PROBLEM :
      package aaa

      import org.springframework.core.ParameterizedTypeReference;

      public class Bug {

          public static class Pojo{

          }

          public static class GenericPojo<T>{

          }

          public GenericPojo<Pojo> getPojo(){
              // GenericPojo<Pojo> gp = doGet(new ParameterizedTypeReference<GenericPojo<Pojo>>() {});
              GenericPojo<Pojo> gp = doGet(new ParameterizedTypeReference<>() {});
              return gp;
          }

          public static <T> T doGet(ParameterizedTypeReference<T> typeReference){
              return null;
          }
      }


      REGRESSION : Last worked in version 10.0.2

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      create a spring project and insert a new class, which use ParameterizedTypeReference

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      compile success
      ACTUAL -
      Information:java: java.lang.NullPointerException
      Information:java: at jdk.compiler/com.sun.tools.javac.comp.Flow$FlowAnalyzer.visitApply(Flow.java:1233)
      Information:java: at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1634)
      Information:java: at jdk.compiler/com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:49)
      Information:java: at jdk.compiler/com.sun.tools.javac.comp.Flow$BaseAnalyzer.scan(Flow.java:396)
      Information:java: at jdk.compiler/com.sun.tools.javac.comp.Flow$FlowAnalyzer.visitVarDef(Flow.java:987)
      Information:java: at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCVariableDecl.accept(JCTree.java:956)
      Information:java: at jdk.compiler/com.sun.tools.javac.tree.TreeScanner.scan(TreeScanner.java:57)
      Information:java: at jdk.compiler/com.sun.tools.javac.comp.Flow$FlowAnalyzer.visitBlock(Flow.java:995)
      Information:java: at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:1020)
      Information:java: at jdk.compiler/com.sun.tools.javac.comp.Flow$FlowAnalyzer.visitMethodDef(Flow.java:962)
      Information:java: at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:866)
      Information:java: at jdk.compiler/com.sun.tools.javac.comp.Flow$FlowAnalyzer.visitClassDef(Flow.java:925)
      Information:java: at jdk.compiler/com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:774)
      Information:java: at jdk.compiler/com.sun.tools.javac.comp.Flow$FlowAnalyzer.analyzeTree(Flow.java:1325)
      Information:java: at jdk.compiler/com.sun.tools.javac.comp.Flow$FlowAnalyzer.analyzeTree(Flow.java:1315)
      Information:java: at jdk.compiler/com.sun.tools.javac.comp.Flow.analyzeTree(Flow.java:216)
      Information:java: at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1393)
      Information:java: at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.flow(JavaCompiler.java:1367)
      Information:java: at jdk.compiler/com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:965)
      Information:java: at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.lambda$doCall$0(JavacTaskImpl.java:100)
      Information:java: at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.handleExceptions(JavacTaskImpl.java:142)
      Information:java: at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.doCall(JavacTaskImpl.java:96)
      Information:java: at jdk.compiler/com.sun.tools.javac.api.JavacTaskImpl.call(JavacTaskImpl.java:90)
      Information:java: at org.jetbrains.jps.javac.JavacMain.compile(JavacMain.java:193)
      Information:java: at org.jetbrains.jps.incremental.java.JavaBuilder.compileJava(JavaBuilder.java:448)
      Information:java: at org.jetbrains.jps.incremental.java.JavaBuilder.compile(JavaBuilder.java:318)
      Information:java: at org.jetbrains.jps.incremental.java.JavaBuilder.doBuild(JavaBuilder.java:243)
      Information:java: at org.jetbrains.jps.incremental.java.JavaBuilder.build(JavaBuilder.java:201)
      Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.runModuleLevelBuilders(IncProjectBuilder.java:1317)
      Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.runBuildersForChunk(IncProjectBuilder.java:993)
      Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.buildTargetsChunk(IncProjectBuilder.java:1065)
      Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.buildChunkIfAffected(IncProjectBuilder.java:956)
      Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.buildChunks(IncProjectBuilder.java:788)
      Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.runBuild(IncProjectBuilder.java:377)
      Information:java: at org.jetbrains.jps.incremental.IncProjectBuilder.build(IncProjectBuilder.java:184)
      Information:java: at org.jetbrains.jps.cmdline.BuildRunner.runBuild(BuildRunner.java:138)
      Information:java: at org.jetbrains.jps.cmdline.BuildSession.runBuild(BuildSession.java:309)
      Information:java: at org.jetbrains.jps.cmdline.BuildSession.run(BuildSession.java:137)
      Information:java: at org.jetbrains.jps.cmdline.BuildMain$MyMessageHandler.lambda$channelRead0$0(BuildMain.java:235)
      Information:java: at org.jetbrains.jps.service.impl.SharedThreadPoolImpl.lambda$executeOnPooledThread$0(SharedThreadPoolImpl.java:42)
      Information:java: at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:514)
      Information:java: at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
      Information:java: at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1135)
      Information:java: at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
      Information:java: at java.base/java.lang.Thread.run(Thread.java:844)
      Information:java: Errors occurred while compiling module 'web'
      Information:javac 10.0.2 was used to compile java sources
      Information:2018/10/17 14:35 - Compilation completed with 1 error and 0 warnings in 1 s 475 ms
      Error:java: Compilation failed: internal java compiler error

      ---------- BEGIN SOURCE ----------
      package aaa

      import org.springframework.core.ParameterizedTypeReference;

      public class Bug {

          public static class Pojo{

          }

          public static class GenericPojo<T>{

          }

          public GenericPojo<Pojo> getPojo(){
              // GenericPojo<Pojo> gp = doGet(new ParameterizedTypeReference<GenericPojo<Pojo>>() {});
              GenericPojo<Pojo> gp = doGet(new ParameterizedTypeReference<>() {});
              return gp;
          }

          public static <T> T doGet(ParameterizedTypeReference<T> typeReference){
              return null;
          }
      }
      ---------- END SOURCE ----------

      CUSTOMER SUBMITTED WORKAROUND :
      replace with :

      GenericPojo<Pojo> gp = doGet(new ParameterizedTypeReference<GenericPojo<Pojo>>() {});

      FREQUENCY : always


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              Assignee:
              vromero Vicente Arturo Romero Zaldivar
              Reporter:
              webbuggrp Webbug Group
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                Dates

                Created:
                Updated:
                Resolved: