ca.ucalgary.minnow
Class MinJarMaker

java.lang.Object
  java.lang.ClassLoader
      ca.ucalgary.minnow.MinJarMaker

All Implemented Interfaces:

Runnable

public class MinJarMaker
extends ClassLoader
implements Runnable

This class should be called from the command line using a "clean" JVM (i.e. no extra libraries installed) to act as a recorder of what classes particular to a program are accessed during its running. These classes are then jarred up to provide the minimal non-standard JVM codeset required to execute the program. This class is based on (but is much more comprehensive than) an example at http://www.devx.com/Java/Article/17674/1954?pf=true This application is called "Minnow".

Author:

Paul Gordon gordonp@ucalgary.ca

Field Summary

static String	MANIFEST_MAIN_CLASS_PROPERTY
static String	MANIFEST_PATH
static String	VERBOSE

Constructor Summary

MinJarMaker(String jarfile, String program, String[] programArgs, boolean secondaryJars, String webStartIndex)

Method Summary

Class	findClass(String name)
URL	findResource(String name)
Set<String>	getLoadedClasses()
static void	main(String[] args)
void	run()

Methods inherited from class java.lang.ClassLoader

clearAssertionStatus, getParent, getResource, getResourceAsStream, getResources, getSystemClassLoader, getSystemResource, getSystemResourceAsStream, getSystemResources, loadClass, setClassAssertionStatus, setDefaultAssertionStatus, setPackageAssertionStatus

Methods inherited from class java.lang.Object

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

Field Detail

VERBOSE

public static String VERBOSE

MANIFEST_PATH

public static final String MANIFEST_PATH

See Also:

Constant Field Values

MANIFEST_MAIN_CLASS_PROPERTY

public static final String MANIFEST_MAIN_CLASS_PROPERTY

See Also:

Constant Field Values

Constructor Detail

MinJarMaker

public MinJarMaker(String jarfile,
                   String program,
                   String[] programArgs,
                   boolean secondaryJars,
                   String webStartIndex)
            throws ClassNotFoundException,
                   InvocationTargetException,
                   NoSuchMethodException,
                   IllegalAccessException,
                   IOException

Throws:

ClassNotFoundException

InvocationTargetException

NoSuchMethodException

IllegalAccessException

IOException

Method Detail

main

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

Throws:

Exception

findResource

public URL findResource(String name)

Overrides:

findResource in class ClassLoader

findClass

public Class findClass(String name)
                throws ClassNotFoundException

Overrides:

findClass in class ClassLoader

Throws:

ClassNotFoundException

getLoadedClasses

public Set<String> getLoadedClasses()

run

public void run()

Specified by:

run in interface Runnable