Clean up warnings

Author: sbrannen

Diff for: spring-core/src/test/java/org/springframework/core/convert/converter/DefaultConversionServiceTests.java

@@ -531,7 +531,7 @@ public void convertStringToCollection() {
 
 	@Test
 	public void convertStringToCollectionWithElementConversion() throws Exception {
-		List<?> result = (List) conversionService.convert("1,2,3", TypeDescriptor.valueOf(String.class),
+		List<?> result = (List<?>) conversionService.convert("1,2,3", TypeDescriptor.valueOf(String.class),
 				new TypeDescriptor(getClass().getField("genericList")));
 		assertEquals(3, result.size());
 		assertEquals(1, result.get(0));

Diff for: spring-core/src/test/java/org/springframework/core/io/buffer/DataBufferUtilsTests.java

@@ -35,7 +35,6 @@
 
 import io.netty.buffer.ByteBuf;
 import org.junit.Before;
-import org.junit.Ignore;
 import org.junit.Test;
 import org.mockito.stubbing.Answer;
 import org.reactivestreams.Subscription;