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  1. JDK
  2. JDK-8155028

javac crashes in silly do-while loop

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    • b117
    • generic
    • generic
    • Verified

      FULL PRODUCT VERSION :
      java version "1.8.0_92"
      Java(TM) SE Runtime Environment (build 1.8.0_92-b14)
      Java HotSpot(TM) 64-Bit Server VM (build 25.92-b14, mixed mode)

      javac 1.8.0_92

      ADDITIONAL OS VERSION INFORMATION :
      Microsoft Windows [Version 10.0.10586]

      A DESCRIPTION OF THE PROBLEM :
      javac will crash if you compile the provided code

      ACTUAL -
      An exception has occurred in the compiler (1.8.0_92)

      ERROR MESSAGES/STACK TRACES THAT OCCUR :
      An exception has occurred in the compiler (1.8.0_92). Please file a bug against the Java compiler via the Java bug reporting page (http://bugreport.java.com) after checking the Bug Database (http://bugs.java.com) for duplicates. Include your program and the following diagnostic in your report. Thank you.
      java.lang.AssertionError
              at com.sun.tools.javac.util.Assert.error(Assert.java:126)
              at com.sun.tools.javac.util.Assert.check(Assert.java:45)
              at com.sun.tools.javac.jvm.Items$LocalItem.<init>(Items.java:390)
              at com.sun.tools.javac.jvm.Items.makeLocalItem(Items.java:131)
              at com.sun.tools.javac.jvm.Gen.visitIdent(Gen.java:2300)
              at com.sun.tools.javac.tree.JCTree$JCIdent.accept(JCTree.java:2011)
              at com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:946)
              at com.sun.tools.javac.jvm.Gen.visitLetExpr(Gen.java:2399)
              at com.sun.tools.javac.tree.JCTree$LetExpr.accept(JCTree.java:2426)
              at com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:946)
              at com.sun.tools.javac.jvm.Gen.visitLetExpr(Gen.java:2399)
              at com.sun.tools.javac.tree.JCTree$LetExpr.accept(JCTree.java:2426)
              at com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:946)
              at com.sun.tools.javac.jvm.Gen.visitSelect(Gen.java:2336)
              at com.sun.tools.javac.tree.JCTree$JCFieldAccess.accept(JCTree.java:1897)
              at com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:946)
              at com.sun.tools.javac.jvm.Gen.visitApply(Gen.java:1832)
              at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1465)
              at com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:946)
              at com.sun.tools.javac.jvm.Gen.visitBinary(Gen.java:2146)
              at com.sun.tools.javac.tree.JCTree$JCBinary.accept(JCTree.java:1785)
              at com.sun.tools.javac.jvm.Gen.genExpr(Gen.java:946)
              at com.sun.tools.javac.jvm.Gen.genCond(Gen.java:869)
              at com.sun.tools.javac.jvm.Gen.genCond(Gen.java:822)
              at com.sun.tools.javac.jvm.Gen.genLoop(Gen.java:1217)
              at com.sun.tools.javac.jvm.Gen.visitDoLoop(Gen.java:1166)
              at com.sun.tools.javac.tree.JCTree$JCDoWhileLoop.accept(JCTree.java:938)
              at com.sun.tools.javac.jvm.Gen.genDef(Gen.java:736)
              at com.sun.tools.javac.jvm.Gen.genStat(Gen.java:771)
              at com.sun.tools.javac.jvm.Gen.genStat(Gen.java:757)
              at com.sun.tools.javac.jvm.Gen.genStats(Gen.java:808)
              at com.sun.tools.javac.jvm.Gen.visitBlock(Gen.java:1156)
              at com.sun.tools.javac.tree.JCTree$JCBlock.accept(JCTree.java:909)
              at com.sun.tools.javac.jvm.Gen.genDef(Gen.java:736)
              at com.sun.tools.javac.jvm.Gen.genStat(Gen.java:771)
              at com.sun.tools.javac.jvm.Gen.genMethod(Gen.java:1030)
              at com.sun.tools.javac.jvm.Gen.visitMethodDef(Gen.java:993)
              at com.sun.tools.javac.tree.JCTree$JCMethodDecl.accept(JCTree.java:778)
              at com.sun.tools.javac.jvm.Gen.genDef(Gen.java:736)
              at com.sun.tools.javac.jvm.Gen.genClass(Gen.java:2449)
              at com.sun.tools.javac.main.JavaCompiler.genCode(JavaCompiler.java:745)
              at com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1572)
              at com.sun.tools.javac.main.JavaCompiler.generate(JavaCompiler.java:1536)
              at com.sun.tools.javac.main.JavaCompiler.compile2(JavaCompiler.java:901)
              at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:860)
              at com.sun.tools.javac.main.Main.compile(Main.java:523)
              at com.sun.tools.javac.main.Main.compile(Main.java:381)
              at com.sun.tools.javac.main.Main.compile(Main.java:370)
              at com.sun.tools.javac.main.Main.compile(Main.java:361)
              at com.sun.tools.javac.Main.compile(Main.java:56)
              at com.sun.tools.javac.Main.main(Main.java:42)

      REPRODUCIBILITY :
      This bug can be reproduced always.

      ---------- BEGIN SOURCE ----------
      public class DoWhileBug {
      public static void main(String... args){
      Integer i = 100;
      do{ break; } while(i++ < 10);
      }

      }
      ---------- END SOURCE ----------

            sadayapalam Srikanth Adayapalam (Inactive)
            webbuggrp Webbug Group
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              Created:
              Updated:
              Resolved: