Package software.amazon.awssdk.utils

Class ClassLoaderHelper

  • public final class ClassLoaderHelper
extends Object

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static ClassLoader classLoader​(Class<?>... classes)
      Attempt to get class loader that loads the classes and fallback to the thread context classloader if null.
      static Class<?> loadClass​(String fqcn, boolean classesFirst, Class<?>... classes)
      If classesFirst is false, loads the class via the context class loader of the current thread, and if not found, via the class loaders of the optionally specified classes in the order of their specification, and if not found, from the caller class loader as the last resort.
      static Class<?> loadClass​(String fqcn, Class<?>... classes)
      Loads the class via the optionally specified classes in the order of their specification, and if not found, via the context class loader of the current thread, and if not found, from the caller class loader as the last resort.

    • Method Detail

      • loadClass

        public static Class<?> loadClass​(String fqcn,
                                 Class<?>... classes)
                          throws ClassNotFoundException
        Loads the class via the optionally specified classes in the order of their specification, and if not found, via the context class loader of the current thread, and if not found, from the caller class loader as the last resort.
        Parameters:
        fqcn - fully qualified class name of the target class to be loaded
        classes - class loader providers
        Returns:
        the class loaded; never null
        Throws:
        ClassNotFoundException - if failed to load the class

      • loadClass

        public static Class<?> loadClass​(String fqcn,
                                 boolean classesFirst,
                                 Class<?>... classes)
                          throws ClassNotFoundException
        If classesFirst is false, loads the class via the context class loader of the current thread, and if not found, via the class loaders of the optionally specified classes in the order of their specification, and if not found, from the caller class loader as the last resort.

        If classesFirst is true, loads the class via the optionally specified classes in the order of their specification, and if not found, via the context class loader of the current thread, and if not found, from the caller class loader as the last resort.

        Parameters:
        fqcn - fully qualified class name of the target class to be loaded
        classesFirst - true if the class loaders of the optionally specified classes take precedence over the context class loader of the current thread; false if the opposite is true.
        classes - class loader providers
        Returns:
        the class loaded; never null
        Throws:
        ClassNotFoundException - if failed to load the class

      • classLoader

        public static ClassLoader classLoader​(Class<?>... classes)
        Attempt to get class loader that loads the classes and fallback to the thread context classloader if null.
        Parameters:
        classes - the classes
        Returns:
        a ClassLoader or null if none found