#1280 - Fix in invocation of generic RepresentationModelProcessor.

Author: odrotbohm

src/main/java/org/springframework/hateoas/server/mvc/RepresentationModelProcessorInvoker.java

@@ -171,13 +171,7 @@ private static boolean isRawTypeAssignable(@Nullable ResolvableType left, @Nulla
 	}
 
 	private static Class<?> getRawType(@Nullable ResolvableType type) {
-
-		if (type == null) {
-			return Object.class;
-		}
-
-		Class<?> rawType = type.getRawClass();
-		return rawType == null ? Object.class : rawType;
+		return type == null ? Object.class : type.resolve(Object.class);
 	}
 
 	/**

src/test/java/org/springframework/hateoas/server/mvc/RepresentationModelProcessorInvokerUnitTests.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright 2020 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.hateoas.server.mvc;
+
+import static org.assertj.core.api.Assertions.*;
+
+import java.util.Collections;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.hateoas.CollectionModel;
+import org.springframework.hateoas.RepresentationModel;
+import org.springframework.hateoas.server.RepresentationModelProcessor;
+
+/**
+ * Unit tests for {@link RepresentationModelProcessorInvoker}.
+ *
+ * @author Oliver Drotbohm
+ */
+public class RepresentationModelProcessorInvokerUnitTests {
+
+	@Test // #1280
+	void doesNotInvokeGenericProcessorForCollectionModel() {
+
+		RepresentationModelProcessorInvoker invoker = new RepresentationModelProcessorInvoker(
+				Collections.singletonList(new GenericPostProcessor<>()));
+
+		assertThatCode(() -> invoker.invokeProcessorsFor(CollectionModel.empty())) //
+				.doesNotThrowAnyException();
+	}
+
+	// #1280
+
+	static class GenericPostProcessor<T extends GenericModel<T>> implements RepresentationModelProcessor<T> {
+
+		@Override
+		public T process(T model) {
+			return model;
+		}
+	}
+
+	static class GenericModel<T extends RepresentationModel<T>> extends RepresentationModel<T> {}
+}