Apply "instanceof pattern matching" in SynthesizedMergedAnnotationInvocationHandler

Author: sbrannen

spring-core/src/main/java/org/springframework/core/annotation/SynthesizedMergedAnnotationInvocationHandler.java

@@ -144,32 +144,32 @@ private Integer computeHashCode() {
 	private int getValueHashCode(Object value) {
 		// Use Arrays.hashCode(...) since Spring's ObjectUtils doesn't comply
 		// with the requirements specified in Annotation#hashCode().
-		if (value instanceof boolean[]) {
-			return Arrays.hashCode((boolean[]) value);
+		if (value instanceof boolean[] booleans) {
+			return Arrays.hashCode(booleans);
 		}
-		if (value instanceof byte[]) {
-			return Arrays.hashCode((byte[]) value);
+		if (value instanceof byte[] bytes) {
+			return Arrays.hashCode(bytes);
 		}
-		if (value instanceof char[]) {
-			return Arrays.hashCode((char[]) value);
+		if (value instanceof char[] chars) {
+			return Arrays.hashCode(chars);
 		}
-		if (value instanceof double[]) {
-			return Arrays.hashCode((double[]) value);
+		if (value instanceof double[] doubles) {
+			return Arrays.hashCode(doubles);
 		}
-		if (value instanceof float[]) {
-			return Arrays.hashCode((float[]) value);
+		if (value instanceof float[] floats) {
+			return Arrays.hashCode(floats);
 		}
-		if (value instanceof int[]) {
-			return Arrays.hashCode((int[]) value);
+		if (value instanceof int[] ints) {
+			return Arrays.hashCode(ints);
 		}
-		if (value instanceof long[]) {
-			return Arrays.hashCode((long[]) value);
+		if (value instanceof long[] longs) {
+			return Arrays.hashCode(longs);
 		}
-		if (value instanceof short[]) {
-			return Arrays.hashCode((short[]) value);
+		if (value instanceof short[] shorts) {
+			return Arrays.hashCode(shorts);
 		}
-		if (value instanceof Object[]) {
-			return Arrays.hashCode((Object[]) value);
+		if (value instanceof Object[] objects) {
+			return Arrays.hashCode(objects);
 		}
 		return value.hashCode();
 	}
@@ -195,14 +195,14 @@ private String annotationToString() {
 	}
 
 	private String toString(Object value) {
-		if (value instanceof String) {
-			return '"' + value.toString() + '"';
+		if (value instanceof String str) {
+			return '"' + str + '"';
 		}
-		if (value instanceof Enum) {
-			return ((Enum<?>) value).name();
+		if (value instanceof Enum<?> e) {
+			return e.name();
 		}
-		if (value instanceof Class) {
-			return ((Class<?>) value).getName() + ".class";
+		if (value instanceof Class<?> clazz) {
+			return clazz.getName() + ".class";
 		}
 		if (value.getClass().isArray()) {
 			StringBuilder builder = new StringBuilder("{");
@@ -239,29 +239,29 @@ private Object getAttributeValue(Method method) {
 	 * @param array the array to clone
 	 */
 	private Object cloneArray(Object array) {
-		if (array instanceof boolean[]) {
-			return ((boolean[]) array).clone();
+		if (array instanceof boolean[] booleans) {
+			return booleans.clone();
 		}
-		if (array instanceof byte[]) {
-			return ((byte[]) array).clone();
+		if (array instanceof byte[] bytes) {
+			return bytes.clone();
 		}
-		if (array instanceof char[]) {
-			return ((char[]) array).clone();
+		if (array instanceof char[] chars) {
+			return chars.clone();
 		}
-		if (array instanceof double[]) {
-			return ((double[]) array).clone();
+		if (array instanceof double[] doubles) {
+			return doubles.clone();
 		}
-		if (array instanceof float[]) {
-			return ((float[]) array).clone();
+		if (array instanceof float[] floats) {
+			return floats.clone();
 		}
-		if (array instanceof int[]) {
-			return ((int[]) array).clone();
+		if (array instanceof int[] ints) {
+			return ints.clone();
 		}
-		if (array instanceof long[]) {
-			return ((long[]) array).clone();
+		if (array instanceof long[] longs) {
+			return longs.clone();
 		}
-		if (array instanceof short[]) {
-			return ((short[]) array).clone();
+		if (array instanceof short[] shorts) {
+			return shorts.clone();
 		}
 
 		// else