added simple java test

pymavlink/generator/java/examples/Makefile

+all: build
+
+build:
+	mkdir -p com/MAVLink
+	mavgen.py --lang Java --wire-protocol=1.0 ../../../../message_definitions/v1.0/ardupilotmega.xml -o com/MAVLink
+	mkdir -p build
+	javac -d build test.java com/MAVLink/*.java com/MAVLink/common/*.java com/MAVLink/ardupilotmega/*.java
+
+clean:
+	rm -rf build com/MAVLink

pymavlink/generator/java/examples/test.java

+import com.MAVLink.MAVLinkPacket;
+import com.MAVLink.common.*;
+import com.MAVLink.Parser;
+
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
+public class test {
+
+	public static void main(String[] args) {
+		Parser mavParser = new Parser();
+		try {
+			FileInputStream tlog = new FileInputStream(args[0]);
+			try {
+				while(tlog.available() > 0) {
+					MAVLinkPacket packet = mavParser.mavlink_parse_char(tlog.read());
+					if(packet != null){
+						System.out.println("msgid: " + packet.msgid);
+					}
+				}
+				System.out.println("End tlog");
+			} catch (IOException e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			}
+		} catch (FileNotFoundException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}	
+	}
+}