Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8226877

String.intern() does not give expected result.

    XMLWordPrintable

    Details

    • Subcomponent:
    • CPU:
      x86_64
    • OS:
      windows_10

      Description

      ADDITIONAL SYSTEM INFORMATION :
      windows 10

      A DESCRIPTION OF THE PROBLEM :
      When I use String a = new String("1") + new String("2"); then String b = "12"; when I compare a and b, I find that the output is false, then I try to put the above The splicing string changes the value, and the other changes are no problem. They are all true. Only when "12" returns false here, and when I change the version back to java8, there is no such problem.

      REGRESSION : Last worked in version 8u202

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      public static void main(String[] args) {
      String a = new String("1") + new String("2");
      a.intern();
      a.intern();
      String b = "12";
      System.out.println(a == b);

      }

      ACTUAL -
      false

      ---------- BEGIN SOURCE ----------
      public static void main(String[] args) {
      String a = new String("1") + new String("2");
      a.intern();
      a.intern();
      String b = "12";
      System.out.println(a == b);

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

      FREQUENCY : always


        Attachments

          Activity

            People

            Assignee:
            Unassigned Unassigned
            Reporter:
            webbuggrp Webbug Group
            Votes:
            0 Vote for this issue
            Watchers:
            5 Start watching this issue

              Dates

              Created:
              Updated:
              Resolved: