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  1. JDK
  2. JDK-8287878

String.format docs are wrong.

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      A DESCRIPTION OF THE PROBLEM :
      String.format docs are wrong:
      String.format("%1$ts", "2012-02-01")
      breaks with "This is not a string" error
      String.format("%1$s", "2012-02-01")
      works

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      class Any {
      public static void main(String [] args) {
      String.format("%1$ts", "2012-02-01");
      }
      }


      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      2012-02-01
      ACTUAL -
      Exception in thread "main" java.util.IllegalFormatConversionException: s != java.lang.String
      at java.util.Formatter$FormatSpecifier.failConversion(Unknown Source)
      at java.util.Formatter$FormatSpecifier.printDateTime(Unknown Source)
      at java.util.Formatter$FormatSpecifier.print(Unknown Source)
      at java.util.Formatter.format(Unknown Source)
      at java.util.Formatter.format(Unknown Source)
      at java.lang.String.format(Unknown Source)
      at com.ddougher.market.Utils.main(Utils.java:39)

      ---------- BEGIN SOURCE ----------
      class Any {
      public static void main(String [] args) {
      String.format("%1$ts", "2012-02-01");
      }
      }

      ---------- END SOURCE ----------

      CUSTOMER SUBMITTED WORKAROUND :
      Ignore the docs.

      FREQUENCY : always


            tongwan Andrew Wang
            webbuggrp Webbug Group
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              Created:
              Updated:
              Resolved: