JavaWrapper

java.lang.Object
- org.apache.bcel.util.JavaWrapper

```
public class JavaWrapper
extends java.lang.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:

ClassLoader

Constructor Summary

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

Method Summary

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

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - JavaWrapper
```
public JavaWrapper()
```
    Constructs a JavaWrapper with the default class loader.
  - JavaWrapper
```
public JavaWrapper(java.lang.ClassLoader loader)
```
    Constructs a JavaWrapper with the specified class loader.
    
    Parameters:
    
    loader - The class loader to use.
- Method Detail
  - main
```
public static void main(java.lang.String[] argv)
                 throws java.lang.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:
    
    java.lang.Exception - Thrown if an error occurs during execution.
  - runMain
```
public void runMain(java.lang.String className,
                    java.lang.String[] argv)
             throws java.lang.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:
    
    java.lang.ClassNotFoundException - Thrown if className can't be found.