* BOB, SAM, i2psnark: Fix datagram NPE (ticket #1275)

This could only happen on an extremely overloaded router.

apps/BOB/src/net/i2p/BOB/UDPIOthread.java

@@ -106,8 +106,10 @@ public class UDPIOthread implements I2PSessionListener, Runnable {
 		//		_log.debug("Message available: id = " + msgId + " size = " + size);
 		try {
 			byte msg[] = session.receiveMessage(msgId);
+			if (msg != null) {
 				out.write(msg);
 				out.flush();
+			}
 		} catch (I2PSessionException ise) {
 			up = false;
 		} catch (IOException ioe) {

apps/i2psnark/java/src/org/klomp/snark/dht/KRPC.java

@@ -1536,6 +1536,8 @@ public class KRPC implements I2PSessionMuxedListener, DHT {
         // TODO throttle
         try {
             byte[] payload = session.receiveMessage(msgId);
+            if (payload == null)
+                return;
             _rxPkts.incrementAndGet();
             _rxBytes.addAndGet(payload.length);
             if (toPort == _qPort) {

apps/sam/java/src/net/i2p/sam/SAMMessageSession.java

@@ -234,6 +234,8 @@ public abstract class SAMMessageSession {
             }
             try {
                 byte msg[] = session.receiveMessage(msgId);
+                if (msg == null)
+                    return;
                 if (_log.shouldLog(Log.DEBUG)) {
                     _log.debug("Content of message " + msgId + ":\n"
                                + HexDump.dump(msg));

history.txt

@@ -1,3 +1,7 @@
+2014-05-13 zzz
+ * BOB, SAM, i2psnark: Fix datagram NPE (ticket #1275)
+ * SusiMail: Fix AIOOBE (ticket #1269)
+
 2014-05-10 zzz
  * NTCP: Fix NPE (ticket #996)
  * SusiMail: Remove deleted mails from memory

router/java/src/net/i2p/router/RouterVersion.java

@@ -18,7 +18,7 @@ public class RouterVersion {
     /** deprecated */
     public final static String ID = "Monotone";
     public final static String VERSION = CoreVersion.VERSION;
-    public final static long BUILD = 17;
+    public final static long BUILD = 18;
 
     /** for example "-test" */
     public final static String EXTRA = "-rc";