Fix unused type compiler warnings

spring-aop/src/test/java/org/springframework/aop/aspectj/AspectJExpressionPointcutTests.java

@@ -309,10 +309,6 @@ public final class AspectJExpressionPointcutTests {
 		assertTrue("Expression should match TestBean class", classFilter.matches(TestBean.class));
 	}
 
-	private void assertDoesNotMatchStringClass(ClassFilter classFilter) {
-		assertFalse("Expression should not match String class", classFilter.matches(String.class));
-	}
-
 	@Test
 	public void testWithUnsupportedPointcutPrimitive() throws Exception {
 		String expression = "call(int org.springframework.tests.sample.beans.TestBean.getAge())";

spring-aop/src/test/java/org/springframework/aop/aspectj/TigerAspectJExpressionPointcutTests.java

@@ -89,6 +89,8 @@ public final class TigerAspectJExpressionPointcutTests {
 
 	@Test
 	public void testMatchVarargs() throws SecurityException, NoSuchMethodException {
+
+		@SuppressWarnings("unused")
 		class MyTemplate {
 			public int queryForInt(String sql, Object... params) {
 				return 0;

spring-aop/src/test/java/org/springframework/aop/framework/adapter/ThrowsAdviceInterceptorTests.java

@@ -144,7 +144,7 @@ public final class ThrowsAdviceInterceptorTests {
 	}
 
 	@SuppressWarnings("serial")
-	private static class MyThrowsHandler extends MethodCounter implements ThrowsAdvice {
+	static class MyThrowsHandler extends MethodCounter implements ThrowsAdvice {
 		// Full method signature
 		public void afterThrowing(Method m, Object[] args, Object target, IOException ex) {
 			count("ioException");