FULL PRODUCT VERSION :
java version "1.6.0_21"
Java(TM) SE Runtime Environment (build 1.6.0_21-b06)
Java HotSpot(TM) Client VM (build 17.0-b16, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.0.6002]

A DESCRIPTION OF THE PROBLEM :
Java RegEx matcher loops on a special RegEx.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run the sample program.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
  Program should finish.
ACTUAL -
Progam loops, does not finish.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
    Pattern pattern = Pattern.compile("^([+-]?((0[xX](\\p{XDigit}+))|(((\\p{Digit}+)(\\.)?((\\p{Digit}+)?)([eE][+-]?(\\p{Digit}+))?)|(\\.((\\p{Digit}+))([eE][+-]?(\\p{Digit}+))?)))|[n|N]?'([^']*(?:'')*[^']*)*')");
    Matcher matcher = pattern.matcher("'%)) order by ANGEBOT.ID");
    matcher.find();
---------- END SOURCE ----------