import java.util.*;
    import java.io.*;
    import java.util.regex.*;
    import java.util.List;
     
    class Program {
    public static void main (String[] args) throws java.lang.Exception	{
     
    String subject = "somethingelse,case,test02,test03,exceptional,case,test04,exceptional,notcase";
    Pattern regex = Pattern.compile("exceptional,case|(,)");
    Matcher m = regex.matcher(subject);
    StringBuffer b= new StringBuffer();
    while (m.find()) {
    if(m.group(1) != null) m.appendReplacement(b, "@@SplitHere@@");
    else m.appendReplacement(b, m.group(0));
    }
    m.appendTail(b);
    String replaced = b.toString();
    String[] splits = replaced.split("@@SplitHere@@");
    for (String split : splits) System.out.println(split);
    } // end main
    } // end Program