redundant type specifications

h2/src/main/org/h2/command/Parser.java

@@ -5263,7 +5263,7 @@ public class Parser {
      */
     private static List<Column> createQueryColumnTemplateList(String[] cols,
             Query theQuery, String[] querySQLOutput) {
-        List<Column> columnTemplateList = new ArrayList<Column>();
+        List<Column> columnTemplateList = new ArrayList<>();
         theQuery.prepare();
         // array of length 1 to receive extra 'output' field in addition to
         // return value

h2/src/main/org/h2/command/dml/MergeUsing.java

@@ -114,7 +114,7 @@ public class MergeUsing extends Prepared {
     private int countUpdatedRows=0;
     private Column[] sourceKeys;
     private Select targetMatchQuery;
-    private HashMap<Value, Integer> targetRowidsRemembered = new HashMap<Value,Integer>();
+    private HashMap<Value, Integer> targetRowidsRemembered = new HashMap<>();
     private int sourceQueryRowNumber= 0;
 
     public MergeUsing(Merge merge) {
@@ -414,8 +414,8 @@ public class MergeUsing extends Prepared {
     }
 
     private HashSet<Column> buildColumnListFromOnCondition(TableFilter anyTableFilter) {
-        HashSet<Column> filteredColumns = new HashSet<Column>();
-        HashSet<Column> columns = new HashSet<Column>();
+        HashSet<Column> filteredColumns = new HashSet<>();
+        HashSet<Column> columns = new HashSet<>();
         ExpressionVisitor visitor = ExpressionVisitor.getColumnsVisitor(columns);
         onCondition.isEverything(visitor);
         for(Column c: columns){

h2/src/main/org/h2/util/ToDateTokenizer.java

@@ -698,7 +698,7 @@ class ToDateTokenizer {
                 Character key = Character.toUpperCase(formatStr.charAt(0));
                 switch (key) {
                 case '"':
-                    result = new ArrayList<FormatTokenEnum>();
+                    result = new ArrayList<>();
                     result.add(INLINE);
                     break;
                 default: