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  1. JDK
  2. JDK-8185426

Jshell crashing on autocompletion

    Details

    • Subcomponent:
    • Introduced In Build:
      b164
    • Introduced In Version:
      9
    • Resolved In Build:
      b22
    • CPU:
      generic
    • OS:
      generic
    • Verification:
      Verified

      Description

      FULL PRODUCT VERSION :
      java version "9"
      Java(TM) SE Runtime Environment (build 9+179)
      Java HotSpot(TM) 64-Bit Server VM (build 9+179, mixed mode)

      ADDITIONAL OS VERSION INFORMATION :
      Microsoft Windows [Version 6.3.9600]

      A DESCRIPTION OF THE PROBLEM :
      Jshell crashing on autocompletion when tab is pressed more than 3 times

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      Open jshell and press tab key 4 times

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      Autocompletion in console

      ERROR MESSAGES/STACK TRACES THAT OCCUR :
      Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: -1
              at java.base/java.lang.String.substring(String.java:1852)
              at jdk.jshell/jdk.internal.jshell.tool.ConsoleIOContext$AllSuggestionsCompletionTask.lambda$perform$1(ConsoleIOContext.java:524)
              at java.base/java.util.Optional.map(Optional.java:257)
              at jdk.jshell/jdk.internal.jshell.tool.ConsoleIOContext$AllSuggestionsCompletionTask.perform(ConsoleIOContext.java:524)
              at jdk.jshell/jdk.internal.jshell.tool.ConsoleIOContext.complete(ConsoleIOContext.java:287)
              at jdk.jshell/jdk.internal.jshell.tool.ConsoleIOContext.access$000(ConsoleIOContext.java:69)
              at jdk.jshell/jdk.internal.jshell.tool.ConsoleIOContext$1.complete(ConsoleIOContext.java:100)
              at jdk.internal.le/jdk.internal.jline.console.ConsoleReader.readLine(ConsoleReader.java:2684)
              at jdk.internal.le/jdk.internal.jline.console.ConsoleReader.readLine(ConsoleReader.java:2279)
              at jdk.jshell/jdk.internal.jshell.tool.ConsoleIOContext.readLine(ConsoleIOContext.java:139)
              at jdk.jshell/jdk.internal.jshell.tool.JShellTool.run(JShellTool.java:1140)
              at jdk.jshell/jdk.internal.jshell.tool.JShellTool.start(JShellTool.java:929)
              at jdk.jshell/jdk.internal.jshell.tool.JShellToolBuilder.run(JShellToolBuilder.java:239)
              at jdk.jshell/jdk.internal.jshell.tool.JShellToolProvider.main(JShellToolProvider.java:119)

      REPRODUCIBILITY :
      This bug can be reproduced always.

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              • Assignee:
                jlahoda Jan Lahoda
                Reporter:
                webbuggrp Webbug Group
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                Dates

                • Created:
                  Updated:
                  Resolved: