Class JavaWrapper

java.lang.Object
org.apache.bcel.util.JavaWrapper
public class JavaWrapper extends Object
Java interpreter replacement, that is, wrapper that uses its own ClassLoader to modify/generate classes as they're requested. You can take this as a template for your own applications.

Call this wrapper with: 

java org.apache.bcel.util.JavaWrapper <real.class.name> [arguments]

To use your own class loader you can set the "bcel.classloader" system property. 

java org.apache.bcel.util.JavaWrapper -Dbcel.classloader=foo.MyLoader <real.class.name> [arguments]
See Also:

  • Constructor Summary

    Constructors
    Constructor
    Description
    JavaWrapper()
    Constructs a JavaWrapper with the default class loader.
    JavaWrapper(ClassLoader loader)
    Constructs a JavaWrapper with the specified class loader.

  • Method Summary

    Modifier and Type
    Method
    Description
    static void
    main(String[] argv)
    Default main method used as wrapper, expects the fully qualified class name of the real class as the first argument.
    void
    runMain(String className, String[] argv)
    Runs the main method of the given class with the arguments passed in argv

    Methods inherited from class Object

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

  • Constructor Details

    • JavaWrapper

      public JavaWrapper()
      Constructs a JavaWrapper with the default class loader.

    • JavaWrapper

      public JavaWrapper(ClassLoader loader)
      Constructs a JavaWrapper with the specified class loader.
      Parameters:
      loader - The class loader to use.

  • Method Details

    • main

      public static void main(String[] argv) throws Exception
      Default main method used as wrapper, expects the fully qualified class name of the real class as the first argument.
      Parameters:
      argv - command line arguments where first argument is the class name.
      Throws:
      Exception - Thrown if an error occurs during execution.

    • runMain

      public void runMain(String className, String[] argv) throws ClassNotFoundException
      Runs the main method of the given class with the arguments passed in argv
      Parameters:
      className - The fully qualified class name.
      argv - The arguments just as you would pass them directly.
      Throws:
      ClassNotFoundException - Thrown if className can't be found.