Updated JavaDoc

src/main/java/tk/pratanumandal/unique4j/Unique.java

@@ -152,7 +152,7 @@ public Unique(final String APP_ID, final boolean AUTO_EXIT) {
 	/**
 	 * Try to obtain lock. If not possible, send data to first instance.
 	 * 
-	 * @deprecated Use acquireLock() instead
+	 * @deprecated Use <code>acquireLock()</code> instead
 	 * @throws Unique4jException throws Unique4jException if it is unable to start a server or connect to server
 	 */
 	@Deprecated
@@ -403,7 +403,7 @@ private void lockFile(int port) throws Unique4jException {
 	/**
 	 * Free the lock if possible. This is only required to be called from the first instance.
 	 * 
-	 * @deprecated Use freeLock() instead
+	 * @deprecated Use <code>freeLock()</code> instead
 	 * @throws Unique4jException throws Unique4jException if it is unable to stop the server or release file lock
 	 */
 	@Deprecated
@@ -463,6 +463,7 @@ public boolean freeLock() throws Unique4jException {
 
 	/**
 	 * Method used in subsequent instances to send message to first instance.<br>
+	 * It is not recommended to perform blocking (long running) tasks here. Use <code>beforeExit()</code> method instead.<br>
 	 * This method is not synchronized.
 	 * 
 	 * @return message sent from subsequent instances