Package io.netty.util.internal

Class ReflectionUtil

  • public final class ReflectionUtil
extends java.lang.Object

    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      private ReflectionUtil()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      private static java.lang.Class<?> fail​(java.lang.Class<?> type, java.lang.String typeParamName)  
      private static java.lang.RuntimeException handleInaccessibleObjectException​(java.lang.RuntimeException e)  
      static java.lang.Class<?> resolveTypeParameter​(java.lang.Object object, java.lang.Class<?> parametrizedSuperclass, java.lang.String typeParamName)
      Resolve a type parameter of a class that is a subclass of the given parametrized superclass.
      static java.lang.Throwable trySetAccessible​(java.lang.reflect.AccessibleObject object, boolean checkAccessible)
      Try to call AccessibleObject.setAccessible(boolean) but will catch any SecurityException and java.lang.reflect.InaccessibleObjectException and return it.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • ReflectionUtil

        private ReflectionUtil()

    • Method Detail

      • trySetAccessible

        public static java.lang.Throwable trySetAccessible​(java.lang.reflect.AccessibleObject object,
                                                   boolean checkAccessible)
        Try to call AccessibleObject.setAccessible(boolean) but will catch any SecurityException and java.lang.reflect.InaccessibleObjectException and return it. The caller must check if it returns null and if not handle the returned exception.

      • handleInaccessibleObjectException

        private static java.lang.RuntimeException handleInaccessibleObjectException​(java.lang.RuntimeException e)

      • fail

        private static java.lang.Class<?> fail​(java.lang.Class<?> type,
                                       java.lang.String typeParamName)

      • resolveTypeParameter

        public static java.lang.Class<?> resolveTypeParameter​(java.lang.Object object,
                                                      java.lang.Class<?> parametrizedSuperclass,
                                                      java.lang.String typeParamName)
        Resolve a type parameter of a class that is a subclass of the given parametrized superclass.
        Parameters:
        object - The object to resolve the type parameter for
        parametrizedSuperclass - The parametrized superclass
        typeParamName - The name of the type parameter to resolve
        Returns:
        The resolved type parameter
        Throws:
        java.lang.IllegalStateException - if the type parameter could not be resolved