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  1. JDK
  2. JDK-6332816

PIT:Console.readLine() throws ArrayIndexOutOfBoundsException

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    • b57
    • generic
    • windows_xp
    • Verified

    Description

      The methods of Console class
      java.io.Console.readLine()
      java.io.Console.readLine(String fmt,Object ...args)
      java.io.readPassword()
      java.io.readPassword(String fmt,Object ...args)
        throws java.lang.ArrayIndexOutOfBoundsException when the input stream exceeds 1024 characters.Since the readLine() method reads a line until line termination, and line bound is considered to be any one of line feed,carriage return,and carriage return followed immediately by a line feed, It should read more than 1024 characters if the user wants to give a line containing more than 1024 characters.

      Please see the following version,code and result.
      Tried in Windows XP Professional
      <version>
      C:\work>java -version
      java version "1.6.0-auto"
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.6.0-auto-277)
      Java HotSpot(TM) Client VM (build 1.6.0-ea-b55, mixed mode)
      </version>

      <code>
      import java.io.Console;
      import static java.lang.System.out;
      class TestCon {
           public static void main(String ...args) {
              Console con = System.console();
      if (con!=null){
      String sg =con.readLine();
      out.println("string read is "+sg);
              }
            }
      }
      </code>
      result when run
      <result>
      C:\work>java TestCon
      abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
      Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 1024
              at java.io.Console$LineReader.read(Console.java:435)
              at java.io.Console.readline(Console.java:346)
              at java.io.Console.readLine(Console.java:232)
              at java.io.Console.readLine(Console.java:254)
              at TestCon.main(TestCon.java:14)
      </result>

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            sherman Xueming Shen
            rgutupalsunw Rajendra Gutupalli (Inactive)
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