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  1. JDK
  2. JDK-7161754

Compiler Error when trying to compile strings in a switch

    Details

    • Type: Bug
    • Status: Closed
    • Priority: P4
    • Resolution: Duplicate
    • Affects Version/s: 7
    • Fix Version/s: None
    • Component/s: tools
    • Labels:
    • Subcomponent:
    • CPU:
      x86
    • OS:
      windows_vista

      Description

      FULL PRODUCT VERSION :
      1.7.0_01

      FULL OS VERSION :
      Windows Vista 32 bit

      A DESCRIPTION OF THE PROBLEM :
      While building a JavaFX 2.0 application i wanted to use the new string in switches feature on the "KeyEvent" class of JavaFX.

      I wanted to switch on the different types of KeyEvents, i.e. "KEY_PRESSED" or "KEY_RELEASED".

      THE PROBLEM WAS REPRODUCIBLE WITH -Xint FLAG: Did not try

      THE PROBLEM WAS REPRODUCIBLE WITH -server FLAG: Did not try

      ERROR MESSAGES/STACK TRACES THAT OCCUR :
      An exception has occurred in the compiler (1.7.0_01). Please file a bug at the Java Developer Connection (http://java.sun.com/webapps/bugreport) after checking the Bug Parade for duplicates. Include your program and the following diagnostic in your report. Thank you.
      java.lang.NullPointerException
      at com.sun.tools.javac.comp.Lower.visitStringSwitch(Lower.java:3456)
      at com.sun.tools.javac.comp.Lower.visitSwitch(Lower.java:3357)
      at com.sun.tools.javac.tree.JCTree$JCSwitch.accept(JCTree.java:959)
      at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
      at com.sun.tools.javac.comp.Lower.translate(Lower.java:2160)
      at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:70)
      at com.sun.tools.javac.tree.TreeTranslator.visitBlock(TreeTranslator.java:160)
      at com.sun.tools.javac.comp.Lower.visitBlock(Lower.java:3311)
      at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:781)
      at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
      at com.sun.tools.javac.comp.Lower.translate(Lower.java:2160)
      at com.sun.tools.javac.tree.TreeTranslator.visitMethodDef(TreeTranslator.java:144)
      at com.sun.tools.javac.comp.Lower.visitMethodDefInternal(Lower.java:2619)
      at com.sun.tools.javac.comp.Lower.visitMethodDef(Lower.java:2538)
      at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:669)
      at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
      at com.sun.tools.javac.comp.Lower.translate(Lower.java:2160)
      at com.sun.tools.javac.comp.Lower.visitClassDef(Lower.java:2283)
      at com.sun.tools.javac.tree.JCTree$JCClassDecl.accept(JCTree.java:591)
      at com.sun.tools.javac.tree.TreeTranslator.translate(TreeTranslator.java:58)
      at com.sun.tools.javac.comp.Lower.translate(Lower.java:2160)
      at com.sun.tools.javac.comp.Lower.translate(Lower.java:2180)
      at com.sun.tools.javac.comp.Lower.translateTopLevelClass(Lower.java:3650)
      at com.sun.tools.javac.main.JavaCompiler.desugar(JavaCompiler.java:1393)
      at com.sun.tools.javac.main.JavaCompiler.desugar(JavaCompiler.java:1271)
      at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:870)
      at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:829)
      at com.sun.tools.javac.main.Main.compile(Main.java:417)
      at com.sun.tools.javac.main.Main.compile(Main.java:331)
      at com.sun.tools.javac.main.Main.compile(Main.java:322)
      at com.sun.tools.javac.Main.compile(Main.java:76)
      at com.sun.tools.javac.Main.main(Main.java:61)

      REPRODUCIBILITY :
      This bug can be reproduced always.

      ---------- BEGIN SOURCE ----------
      @Override
          public void handle(KeyEvent evt)
          {
              switch(evt.getEventType().getName())
              {
                  case("KEY_PRESSED"):
                      System.out.println("key pressed");
                      break;
                  case("KEY_RELEASED"):
                      System.out.println("key released");
                      break;
                  default:
              }
          }
      ---------- END SOURCE ----------

      CUSTOMER SUBMITTED WORKAROUND :
      Workaround would be to use consecutive if/else if conditions, but i couldn´t manage to run this with strings in switch

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              • Assignee:
                Unassigned
                Reporter:
                webbuggrp Webbug Group
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                • Created:
                  Updated:
                  Resolved:
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