Merge pull request carlosCharz#2 from kicktipp/master

Issue 1: Let Project compile and run under Java 1.7

Author: carlosCharz

pom.xml

@@ -4,14 +4,16 @@
 
 	<groupId>com.wedevol</groupId>
 	<artifactId>xmppserver2</artifactId>
-	<version>0.0.1</version>
+	<version>0.0.2-SNAPSHOT</version>
 	<packaging>jar</packaging>
 
 	<name>FCM XMPP Server</name>
 	<url>http://maven.apache.org</url>
 
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<maven.compiler.source>1.7</maven.compiler.source>
+    	<maven.compiler.target>1.7</maven.compiler.target>
 	</properties>
 
 	<dependencies>

src/main/java/com/wedevol/xmpp/server/CcsClient.java

@@ -16,9 +16,11 @@
 import org.jivesoftware.smack.StanzaListener;
 import org.jivesoftware.smack.XMPPConnection;
 import org.jivesoftware.smack.XMPPException;
+import org.jivesoftware.smack.filter.StanzaFilter;
 import org.jivesoftware.smack.packet.Stanza;
 import org.jivesoftware.smack.provider.ExtensionElementProvider;
 import org.jivesoftware.smack.provider.ProviderManager;
+import org.jivesoftware.smack.sm.predicates.ForEveryStanza;
 import org.jivesoftware.smack.tcp.XMPPTCPConnection;
 import org.jivesoftware.smack.tcp.XMPPTCPConnectionConfiguration;
 import org.json.simple.JSONValue;
@@ -157,11 +159,20 @@ public void connected(XMPPConnection arg0) {
 		});
 
 		// Handle incoming packets (the class implements the StanzaListener)
-		connection.addAsyncStanzaListener(this,
-				stanza -> stanza.hasExtension(Util.FCM_ELEMENT_NAME, Util.FCM_NAMESPACE));
+		connection.addAsyncStanzaListener(this, new StanzaFilter() {
+			@Override
+			public boolean accept(Stanza stanza) {
+				return stanza.hasExtension(Util.FCM_ELEMENT_NAME, Util.FCM_NAMESPACE);
+			}
+		});
 
 		// Log all outgoing packets
-		connection.addPacketInterceptor(stanza -> logger.log(Level.INFO, "Sent: {}", stanza.toXML()), stanza -> true);
+		connection.addPacketInterceptor(new StanzaListener() {
+			@Override
+			public void processPacket(Stanza stanza) throws NotConnectedException {
+				logger.log(Level.INFO, "Sent: {}", stanza.toXML());
+			}
+		}, ForEveryStanza.INSTANCE);
 
 		connection.login(fcmServerUsername, mApiKey);
 		logger.log(Level.INFO, "Logged in: " + fcmServerUsername);