com.facebook.buck.cli.bootstrapper

Class ClassLoaderBootstrapper

java.lang.Object

com.facebook.buck.cli.bootstrapper.ClassLoaderBootstrapper

public final class ClassLoaderBootstrapper
extends Object

This class sets up a separate ClassLoader for most of Buck's implementation, leaving only the bare minimum bootstrapping classes (and a few classes for compatibility with library code that is not ClassLoader-aware) in the system ClassLoader. This is done so that annotation processors do not have their classpaths polluted with Buck's dependencies when Buck is compiling Java code in-process.

Under JSR-199, when the Java compiler is run in-process it uses a ClassLoader that is a child of the system ClassLoader. In order for annotation processors to access the Compiler Tree API (which lives in tools.jar with the compiler itself), they must be loaded with a ClassLoader descended from the compiler's. If Buck used the system ClassLoader as a normal Java application would, this would result in annotation processors getting Buck's versions of Guava, Jackson, etc. instead of their own.

Method Summary

Modifier and Type	Method and Description
static Class<?>	loadClass(String name)
static void	main(String[] args)

Methods inherited from class java.lang.Object

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

Method Detail

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception

loadClass

public static Class<?> loadClass(String name)