Fixed some warnings

jOOQ-test/src/org/jooq/test/_/testcases/CRUDTests.java

@@ -280,7 +280,6 @@ extends BaseTest<A, AP, B, S, B2S, BS, L, X, DATE, BOOL, D, T, U, I, IPK, T658,
         assertEquals(Arrays.asList("Coelho", "Orwell"), new ArrayList<String>(authorNames));
     }
 
-    @SuppressWarnings({ "unchecked", "rawtypes" })
     @Test
     public void testUpdatablesPK() throws Exception {
         jOOQAbstractTest.reset = false;

jOOQ/src/main/java/org/jooq/impl/Factory.java

@@ -1715,6 +1715,12 @@ public class Factory implements FactoryOperations {
         catch (IOException e) {
             throw new DataAccessException("Could not read the CSV string", e);
         }
+        finally {
+            try {
+                reader.close();
+            }
+            catch (IOException ignore) {}
+        }
 
         FieldList fields = new FieldList();
 
@@ -3326,6 +3332,7 @@ public class Factory implements FactoryOperations {
     /**
      * This is not yet implemented
      */
+    @SuppressWarnings("unused")
     static <T extends java.util.Date> Field<T> trunc(Field<T> date, DatePart part) {
         throw new UnsupportedOperationException("This is not yet implemented");
     }

jOOQ/src/main/java/org/jooq/impl/TimestampDiff.java

@@ -66,6 +66,7 @@ class TimestampDiff extends AbstractFunction<DayToSecond> {
         this.timestamp2 = timestamp2;
     }
 
+    @SuppressWarnings({ "unchecked", "rawtypes" })
     @Override
     final Field<DayToSecond> getFunction0(Configuration configuration) {
         switch (configuration.getDialect()) {

jOOQ/src/main/java/org/jooq/impl/Trunc.java

@@ -78,6 +78,7 @@ class Trunc<T> extends AbstractFunction<T> {
         }
     }
 
+    @SuppressWarnings("unused")
     private final Field<T> getDateTimeFunction(Configuration configuration) {
         return null;
     }