Use <> instead of repeating type params on the same line of code

jena-arq/src-examples/arq/examples/AlgebraExec.java

@@ -87,7 +87,7 @@ public static void main (String[] argv)
         {
             // -------- Or make ResultSet from it (but not both - reading an
             //          iterator consumes the current solution)
-            List<String> varNames = new ArrayList<String>() ;
+            List<String> varNames = new ArrayList<>() ;
             varNames.add("x") ;
             varNames.add("z") ;
             ResultSet rs = new ResultSetStream(varNames, m, qIter);

jena-arq/src-examples/arq/examples/ExampleDBpedia3.java

@@ -39,9 +39,9 @@ static public void main(String... argv) {
 
         Query query = QueryFactory.create(queryString) ;
         try(QueryExecution qexec = QueryExecutionFactory.create(query, ModelFactory.createDefaultModel())) {
-            Map<String, Map<String,List<String>>> serviceParams = new HashMap<String, Map<String,List<String>>>() ;
-            Map<String,List<String>> params = new HashMap<String,List<String>>() ;
-            List<String> values = new ArrayList<String>() ;
+            Map<String, Map<String,List<String>>> serviceParams = new HashMap<>() ;
+            Map<String,List<String>> params = new HashMap<>() ;
+            List<String> values = new ArrayList<>() ;
             values.add("2000") ;
             params.put("timeout", values) ;
             serviceParams.put(serviceURI, params) ;

jena-arq/src-examples/arq/examples/propertyfunction/localname.java

@@ -116,7 +116,7 @@ private QueryIterator execAllNodes(Var subjVar, Node nodeLocalname,  Binding inp
         }
 
         //Set bindings = new HashSet() ;    // Use a Set if you want unique results. 
-        List<Binding> bindings = new ArrayList<Binding>() ;   // Use a list if you want counting results. 
+        List<Binding> bindings = new ArrayList<>() ;   // Use a list if you want counting results. 
         Graph graph = execCxt.getActiveGraph() ;
 
         ExtendedIterator<Triple>iter = graph.find(Node.ANY, Node.ANY, Node.ANY) ;

jena-arq/src-examples/arq/examples/riot/ExRIOT_6.java

@@ -42,7 +42,7 @@ public static void main(String... argv) {
         // You can optionally supply a buffer size here for the
         // PipedRDFIterator, see the documentation for details about recommended
         // buffer sizes
-        PipedRDFIterator<Triple> iter = new PipedRDFIterator<Triple>();
+        PipedRDFIterator<Triple> iter = new PipedRDFIterator<>();
         final PipedRDFStream<Triple> inputStream = new PipedTriplesStream(iter);
 
         // PipedRDFStream and PipedRDFIterator need to be on different threads

jena-arq/src/main/java/org/apache/jena/atlas/json/io/parserjavacc/javacc/JSON_Parser.java

@@ -419,7 +419,7 @@ private int jj_ntk() {
       return (jj_ntk = jj_nt.kind);
   }
 
-  private java.util.List<int[]> jj_expentries = new java.util.ArrayList<int[]>();
+  private java.util.List<int[]> jj_expentries = new java.util.ArrayList<>();
   private int[] jj_expentry;
   private int jj_kind = -1;