Package org.apache.flink.util

Class TemporaryClassLoaderContext

  • All Implemented Interfaces:
    AutoCloseable
    @Public
public final class TemporaryClassLoaderContext
extends Object
implements AutoCloseable
    Sets a context class loader in a "try-with-resources" pattern. 
    
 try (TemporaryClassLoaderContext ignored = TemporaryClassLoaderContext.of(classloader)) {
     // code that needs the context class loader
 }

    This is conceptually the same as the code below. 

    
 ClassLoader original = Thread.currentThread().getContextClassLoader();
 Thread.currentThread().setContextClassLoader(classloader);
 try {
     // code that needs the context class loader
 } finally {
     Thread.currentThread().setContextClassLoader(original);
 }

    • Method Detail

      • of

        public static TemporaryClassLoaderContext of​(ClassLoader cl)
        Sets the context class loader to the given ClassLoader and returns a resource that sets it back to the current context ClassLoader when the resource is closed. 
        
 try (TemporaryClassLoaderContext ignored = TemporaryClassLoaderContext.of(classloader)) {
     // code that needs the context class loader
 }