Here is a code example to illustrate the first point. Jdk proxy object can't get method by the Method Class.getMethod(methodName) in the native-image.
#JAVA ANNOTATIONS GETMETHOD THROWS NOSUCHMETHODEXCEPTION FULL#
When you do not know if a method exists, call getMethods() - You can still examine all methods without knowing their names by getting a full list from the Class object.You can request multiple methods without checking each one - if you have a list of methods that must exist, for example, in a plugin component, you can get their Method reflection objects without checking the return value of individual getMethod calls, and.There are two consequences to this approach: The list of methods in a class, however, remains static at all times during a particular run, so it becomes reasonable to ask programmers to call getMethod only for methods that do exist. Therefore, designers of the class library decided that it is unreasonable to ask programmers to check if a value is present before calling Map.get, and decided to return null instead. They decided that asking for a missing key in a Map is OK, because the content of a map is something your program controls at runtime. String hashType 'md5' Method method (hashType + 'Hex', String. If I remove Valid annotation, request goes through but Bean Validations are ignored. And you should pass something (better null) as a first argument to invoke a static method. I have a Rest service (SpringBoot application) that throws an exception if I add Valid annotation to Rest Controller method that process requests. It appears that the designers of Java APIs made a distinction between situations when it's OK to ask for something that is missing and situations when you are supposed to ask only for things that exist. You should add an argument type as a second argument in getDeclaredMethod.
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