Name: ksC84122 Date: 04/20/99


JDK 1.2.2 java.lang.StringBuffer.insert(int index, char str[], int offset, int len)
throws OutOfMemoryError or ArrayIndexOutOfBoundsExc when len == Integer.MAX_VALUE
or offset == Integer.MAX_VALUE.

This is a coding error when checking that "(offset+len) is greater than
str.length".

A test example which demonstrates this problem.
===== test49.java ========
public class test49 {

   public static void main (String argv[]) {

       StringBuffer sb = new StringBuffer("");
       StringBuffer sb1 = new StringBuffer("Some test StringBuffer");
       
    
       try {
           sb.insert(0, new char[5], 1, Integer.MAX_VALUE);
           System.out.println("CASE1 Failed: " +
                              "StringIndexOutOfBoundsException expected");
       } catch (StringIndexOutOfBoundsException sobe) {
           System.out.println("CASE1 Passed");
       } catch (OutOfMemoryError oome) {
           System.out.println("CASE1 Failed: unexpected" + oome);
       }

       try {
           sb1.insert(2, new char[25], 5, Integer.MAX_VALUE);
           System.out.println("CASE2 Failed: " +
                              "StringIndexOutOfBoundsException expected");
       } catch (StringIndexOutOfBoundsException sobe) {
           System.out.println("CASE2 Passed");
       } catch (ArrayIndexOutOfBoundsException aioe) {
           System.out.println("CASE2 Failed: unexpected " + aioe);
       }
       return;
   }
}

========= Sample run (JDK1.2.2) ==========
>java test49
CASE1 Failed: unexpectedjava.lang.OutOfMemoryError
CASE2 Failed: unexpected java.lang.ArrayIndexOutOfBoundsException

======================================================================