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@ -36,7 +36,7 @@ import org.springframework.web.method.HandlerMethodSelector; |
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* Discovers {@linkplain ExceptionHandler @ExceptionHandler} methods in a given class, |
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* Discovers {@linkplain ExceptionHandler @ExceptionHandler} methods in a given class, |
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* including all of its superclasses, and helps to resolve a given {@link Exception} |
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* including all of its superclasses, and helps to resolve a given {@link Exception} |
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* to the exception types supported by a given {@link Method}. |
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* to the exception types supported by a given {@link Method}. |
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* |
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* |
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* @author Rossen Stoyanchev |
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* @author Rossen Stoyanchev |
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* @since 3.1 |
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* @since 3.1 |
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*/ |
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*/ |
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@ -79,8 +79,8 @@ public class ExceptionHandlerMethodResolver { |
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/** |
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/** |
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* Extract exception mappings from the {@code @ExceptionHandler} annotation |
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* Extract exception mappings from the {@code @ExceptionHandler} annotation first, |
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* first and as a fall-back from the method signature. |
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* and then as a fallback from the method signature itself. |
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*/ |
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*/ |
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@SuppressWarnings("unchecked") |
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@SuppressWarnings("unchecked") |
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private List<Class<? extends Throwable>> detectExceptionMappings(Method method) { |
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private List<Class<? extends Throwable>> detectExceptionMappings(Method method) { |
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@ -115,7 +115,7 @@ public class ExceptionHandlerMethodResolver { |
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* Whether the contained type has any exception mappings. |
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* Whether the contained type has any exception mappings. |
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*/ |
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*/ |
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public boolean hasExceptionMappings() { |
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public boolean hasExceptionMappings() { |
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return (this.mappedMethods.size() > 0); |
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return !this.mappedMethods.isEmpty(); |
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} |
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} |
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/** |
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/** |
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@ -140,11 +140,11 @@ public class ExceptionHandlerMethodResolver { |
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method = getMappedMethod(exceptionType); |
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method = getMappedMethod(exceptionType); |
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this.exceptionLookupCache.put(exceptionType, (method != null ? method : NO_METHOD_FOUND)); |
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this.exceptionLookupCache.put(exceptionType, (method != null ? method : NO_METHOD_FOUND)); |
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} |
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} |
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return method != NO_METHOD_FOUND ? method : null; |
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return (method != NO_METHOD_FOUND ? method : null); |
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} |
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} |
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/** |
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/** |
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* Return the method mapped to the given exception type or {@code null}. |
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* Return the {@link Method} mapped to the given exception type, or {@code null} if none. |
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*/ |
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*/ |
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private Method getMappedMethod(Class<? extends Exception> exceptionType) { |
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private Method getMappedMethod(Class<? extends Exception> exceptionType) { |
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List<Class<? extends Throwable>> matches = new ArrayList<Class<? extends Throwable>>(); |
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List<Class<? extends Throwable>> matches = new ArrayList<Class<? extends Throwable>>(); |
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