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Cache parameter types array in ClassUtils.findInterfaceMethodIfPossible()

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This commit is contained in:
Sam Brannen
2024-02-08 18:14:22 +01:00
parent f9791664ef
commit 052bbcc530
1 changed files with 8 additions and 3 deletions
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11
spring-core/src/main/java/org/springframework/util/ClassUtils.java
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@@ -1425,12 +1425,17 @@ public abstract class ClassUtils {
}
private static Method findInterfaceMethodIfPossible(Method method, Class<?> startClass, Class<?> endClass) {
Class<?>[] parameterTypes = null;
Class<?> current = startClass;
while (current != null && current != endClass) {
Class<?>[] ifcs = current.getInterfaces();
for (Class<?> ifc : ifcs) {
if (parameterTypes == null) {
// Since Method#getParameterTypes() clones the array, we lazily retrieve
// and cache parameter types to avoid cloning the array multiple times.
parameterTypes = method.getParameterTypes();
}
for (Class<?> ifc : current.getInterfaces()) {
try {
return ifc.getMethod(method.getName(), method.getParameterTypes());
return ifc.getMethod(method.getName(), parameterTypes);
}
catch (NoSuchMethodException ex) {
// ignore