Java replacing in a file regex
===

I want to put in a file some regex expressions and separated by a semicolon (or something) another expression, i.e.: 

orderNumber:* completionStatus;orderNumber:X completionStatus

I will have a log file what will have:

.... orderNumber:123 completionStatus...

and I want them to look like: 

.... orderNumber:X completionStatus...

How can I do this in Java?

I've tried creating a Map with (key the regex and value the replacement), reading my log file and for each line try matching the keys but my output looks the same. 

    		    	FileInputStream fstream = new FileInputStream(file);
		    	// Get the object of DataInputStream
		    	DataInputStream in = new DataInputStream(fstream);
		    	BufferedReader br = new BufferedReader(new InputStreamReader(in));
			    FileWriter fstreamError = new FileWriter(myFile.replace(".", "Replaced."));
			    BufferedWriter output = new BufferedWriter(fstreamError);
		    	
	    	
		    	while ((strFile = br.readLine()) != null)   {
		    		for (String clave : expressions.keySet()){
		    			Pattern p = Pattern.compile(clave);
		    		    Matcher m = p.matcher(strFile); // get a matcher object
		    		    strFile = m.replaceAll(expressions.get(clave));
		    		    System.out.println(strFile);
		    		}
		    	} 


Any thoughts on this?