http://nexus.sonatype.org/oss-repository-hosting.html/joni: Java port of Oniguruma: http://www.geocities.jp/kosako3/oniguruma that uses byte arrays directly instead of java Strings and chars
  • Marcin Mielzynski 
package org.joni.bench;

public class BenchGreedyBacktrack extends AbstractBench {
    public static void main(String[] args) throws Exception {
        new BenchGreedyBacktrack().bench(".*_p","_petstore_session_id=1b341ffe23b5298676d535fcabd3d0d7; path=/",10,1000000);
    }
}