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java.lang.Objectjava.lang.ClassLoader
java.security.SecureClassLoader
java.net.URLClassLoader
danbikel.util.JarClassLoader
public class JarClassLoader
A class loader for loading a jar file from any URL. Modified from a version taken from Sun's Java website (The JarClassLoader Class).
Constructor Summary | |
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JarClassLoader(URL url)
Creates a new JarClassLoader for the specified URL. |
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JarClassLoader(URL url,
ClassLoader parent)
Creates a new JarClassLoader for the specified URL and parent class loader. |
Method Summary | |
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String |
getMainClassName()
Returns the name of the jar file main class, or null if no "Main-Class" manifest attributes was defined. |
void |
invokeClass(String name,
String[] args)
Invokes the application in this jar file given the name of the main class and an array of arguments. |
Methods inherited from class java.net.URLClassLoader |
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addURL, definePackage, findClass, findResource, findResources, getPermissions, getURLs, newInstance, newInstance |
Methods inherited from class java.security.SecureClassLoader |
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defineClass, defineClass |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public JarClassLoader(URL url)
url
- the url of the jar filepublic JarClassLoader(URL url, ClassLoader parent)
url
- the url of the jar fileparent
- the parent class loader for delegationMethod Detail |
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public String getMainClassName() throws IOException
IOException
public void invokeClass(String name, String[] args) throws ClassNotFoundException, NoSuchMethodException, InvocationTargetException
name
- the name of the main classargs
- the arguments for the application
ClassNotFoundException
- if the specified class could not
be found
NoSuchMethodException
- if the specified class does not
contain a "main" method
InvocationTargetException
- if the application raised an
exception
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