public class MessageFormatTest {
      public static void main(String[] args) {
	      try {
			String data = "java:app/myConnectionPool";
       			String deadlyString = "my data '{ '} {0}";		    	
			String logMessage = java.text.MessageFormat.format(deadlyString, data);
			System.out.println(logMessage);
	      } catch(Exception e) {
		      System.err.println("Invalid Message");
		      System.err.println(e);
	      } 
      }
}