Push to Java 1.7, some minimal changes necessary

(Initial preparation for Android compatibility - incomplete due to rsb)

ipaacalib/java/build.properties

@@ -6,5 +6,6 @@ run.jvmargs= -Xms128m -Xmx512m  -Xss5M
 rebuild.list=
 publish.resolver=asap.sftp.publish
 dist.dir=../../dist
-#javac.source=1.6
-#javac.target=1.6
+javac.source=1.7
+javac.target=1.7
+

ipaacalib/java/src/ipaaca/util/communication/FutureIU.java

@@ -25,7 +25,7 @@ public class FutureIU
     private final BlockingQueue<AbstractIU> queue = new ArrayBlockingQueue<AbstractIU>(1);
     private final IUEventHandler handler;
 
-    public FutureIU(String category, String idKey, String idVal, InputBuffer inBuffer)
+    public FutureIU(String category, final String idKey, final String idVal, InputBuffer inBuffer)
     {
         this.inBuffer = inBuffer;
         handler = new IUEventHandler(new HandlerFunctor()

ipaacalib/java/src/ipaaca/util/communication/FutureIUs.java

@@ -28,9 +28,9 @@ import ipaaca.InputBuffer;
 public class FutureIUs
 {
     private final InputBuffer inBuffer;
-    private final Map<String,BlockingQueue<AbstractIU>> resultsMap = Collections.synchronizedMap(new HashMap<>());
+    private final Map<String,BlockingQueue<AbstractIU>> resultsMap = Collections.synchronizedMap(new HashMap<String,BlockingQueue<AbstractIU>>());
     
-    public FutureIUs(String category, String idKey)
+    public FutureIUs(String category, final String idKey)
     {
         inBuffer = new InputBuffer("FutureIUs", ImmutableSet.of(category));
         inBuffer.registerHandler(new HandlerFunctor()