Re: Dynamically load laf

Daniel wrote: 
Thus I would add that directory to my classpath and all would be
peaches. Well not quite. It seems this is not really working.

You realise you have to put the jars file names in the classpath, not just the directory they are in. I seem to remember a feature in 1.6 for allowing specifying the directory only, but don't quote me on that.

                                                              So I
wrote my own classloader trying to solve this problem. But my
classLoader does not seem to work. (code included last) so i wonder if
anyone has any good ideas on how to solve this. Not neccerily using a
custom classloader, any other ideas are welcome.

URLClassLoader should do just as well. I'm not certain what your problem with the classpath was, but it is probably worthwhile sorting that one out first.

Perhaps it might help if we saw the code of how you are attempting to use the class loader to install the PL&F.

  public Class findClass(String name) throws ClassNotFoundException {
    File dir= new File("lib/LaF");
    if(dir.exists()){
      File[] lafs= dir.listFiles();
      for(int i=0;i<lafs.length;i++){
        if (lafs[i].getName().endsWith(".jar")) {
          try{
            ZipInputStream zin = new ZipInputStream(new
FileInputStream(lafs[i]));
            ZipEntry entry;
            while ( (entry = zin.getNextEntry()) != null) {

You want to do all this for every class loaded? For one thing, you are not closing your input streams, even in the normal case. Using a ZipFile would probably be better, too.

Tom Hawtin
--
Unemployed English Java programmer
http://jroller.com/page/tackline/
.

Relevant Pages

  • Re: Dynamically load laf
    ... >Thus I would add that directory to my classpath and all would be ... >peaches. ... >wrote my own classloader trying to solve this problem. ... I think you will find it easier to use the internal jar Class-Path ...
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  • Re: Strange simple resource loading problem
    ... At least I have the feeling that I ... understand your explanations. ... classloader, ... Daniel ...
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