In 1.4, for a local URL, spaces show up as %20

Question

This code:
String className = this.getClass().getName();
className = new String( className.substring( className.lastIndexOf( '.' ) + 1 ) + ".class" );
URL url = this.getClass().getResource( className );
File file = new File( url.getPath() );is supposed to calculate the path to the current class (and it did perfectly under 1.3 and earlier)
Under 1.4 however, it behaves differently. Any spaces in the path now show up as '%20'. So our application now thinks it's running in a non-existant directory called "C:\Program%20Files\MyProgram", and this of course means its behaviour is completely FUBAR.
Does anyone know a good general solution to this? I can of course manually replace '%20' with ' ' in the code, but this is a hack. Can anyone think of a proper solution?

Answer 1

Yeah, that's nearly identical to my full function actually:
public File getApplicationFile()
    String stClass = this.getClass().getName();
    int iIndex = stClass.lastIndexOf( '.' );
    stClass = new String( stClass.substring( iIndex + 1 ) + ".class" );
    URL url = this.getClass().getResource( stClass );
    if( url.getProtocol().equals( "jar" ) )
        try
            JarURLConnection jarConnection = ( JarURLConnection )url.openConnection();
            url = jarConnection.getJarFileURL();
        catch( IOException x )
            x.printStackTrace();
    return File( url.getPath() ); // doesn't decode escape octets!
}But I didn't know about the URLDecoder class, thanks!