cleanup - avoid unnecessary boxing

h2/src/main/org/h2/jdbc/JdbcArray.java

@@ -258,7 +258,7 @@ public class JdbcArray extends TraceObject implements Array {
         // TODO array result set: there are multiple data types possible
         rs.addColumn("VALUE", Types.NULL, 0, 0);
         for (int i = 0; i < array.length; i++) {
-            rs.addRow(Long.valueOf(offset + i + 1), array[i]);
+            rs.addRow(offset + i + 1, array[i]);
         }
         return rs;
     }

h2/src/main/org/h2/mvstore/type/ObjectDataType.java

@@ -601,7 +601,7 @@ public class ObjectDataType implements DataType {
 
         @Override
         public Object read(ByteBuffer buff, int tag) {
-            return Byte.valueOf(buff.get());
+            return buff.get();
         }
 
     }
@@ -642,7 +642,7 @@ public class ObjectDataType implements DataType {
 
         @Override
         public Object read(ByteBuffer buff, int tag) {
-            return Character.valueOf(buff.getChar());
+            return buff.getChar();
         }
 
     }
@@ -683,7 +683,7 @@ public class ObjectDataType implements DataType {
 
         @Override
         public Object read(ByteBuffer buff, int tag) {
-            return Short.valueOf(buff.getShort());
+            return buff.getShort();
         }
 
     }
@@ -811,7 +811,7 @@ public class ObjectDataType implements DataType {
             case TAG_LONG_FIXED:
                 return buff.getLong();
             }
-            return Long.valueOf(tag - TAG_LONG_0_7);
+            return (long) (tag - TAG_LONG_0_7);
         }
 
     }

h2/src/main/org/h2/tools/MultiDimension.java

@@ -183,8 +183,8 @@ public class MultiDimension implements Comparator<long[]> {
         Long[] from = new Long[len];
         Long[] to = new Long[len];
         for (int i = 0; i < len; i++) {
-            from[i] = Long.valueOf(ranges[i][0]);
-            to[i] = Long.valueOf(ranges[i][1]);
+            from[i] = ranges[i][0];
+            to[i] = ranges[i][1];
         }
         prep.setObject(1, from);
         prep.setObject(2, to);

h2/src/main/org/h2/value/DataType.java

@@ -1335,19 +1335,19 @@ public class DataType {
         if (clazz == Boolean.TYPE) {
             return Boolean.FALSE;
         } else if (clazz == Byte.TYPE) {
-            return Byte.valueOf((byte) 0);
+            return (byte) 0;
         } else if (clazz == Character.TYPE) {
-            return Character.valueOf((char) 0);
+            return (char) 0;
         } else if (clazz == Short.TYPE) {
-            return Short.valueOf((short) 0);
+            return (short) 0;
         } else if (clazz == Integer.TYPE) {
-            return Integer.valueOf(0);
+            return 0;
         } else if (clazz == Long.TYPE) {
-            return Long.valueOf(0);
+            return 0L;
         } else if (clazz == Float.TYPE) {
-            return Float.valueOf(0);
+            return (float) 0;
         } else if (clazz == Double.TYPE) {
-            return Double.valueOf(0);
+            return (double) 0;
         }
         throw DbException.throwInternalError(
                 "primitive=" + clazz.toString());

h2/src/main/org/h2/value/ValueByte.java

@@ -130,7 +130,7 @@ public class ValueByte extends Value {
 
     @Override
     public Object getObject() {
-        return Byte.valueOf(value);
+        return value;
     }
 
     @Override

h2/src/main/org/h2/value/ValueDouble.java

@@ -139,7 +139,7 @@ public class ValueDouble extends Value {
 
     @Override
     public Object getObject() {
-        return Double.valueOf(value);
+        return value;
     }
 
     @Override

h2/src/main/org/h2/value/ValueFloat.java

@@ -139,7 +139,7 @@ public class ValueFloat extends Value {
 
     @Override
     public Object getObject() {
-        return Float.valueOf(value);
+        return value;
     }
 
     @Override

h2/src/main/org/h2/value/ValueShort.java

@@ -130,7 +130,7 @@ public class ValueShort extends Value {
 
     @Override
     public Object getObject() {
-        return Short.valueOf(value);
+        return value;
     }
 
     @Override