Obtain referenced classes from 1.6' javax.tools.JavaCompiler

Question

Hi,
I'd like to use JavaCompiler both to compile .java source files and to maintain dependency information in one go. How do I obtain a list of referenced classes (or even methods, fields, etc) after/during compilation?
Thanx in advance
Oliver

Answer 1

Thanks for the answer... I don't know how to refer to the jre path from within web start. I have solved problem ii) by passing a -cp option to the compiler. Here it is a sample code:
          ClassLocader cl = OnTheFlyCompiler.class.getClassLoader();
          List<URL> classpath = new ArrayList<URL>();
          if ( cl instanceof URLClassLoader ) {
               URLClassLoader cl2 = (URLClassLoader)cl;
               for (URL jar : cl2.getURLs()) {
                    classpath.add(jar);
          String classPath = System.getProperty("java.class.path");
          for (String path : classPath.split(File.pathSeparator)) {
               try {
                    classpath.add(new URL("file:"+path));
               } catch (MalformedURLException e) {
                    System.err.println("Wrong url: "+e.getMessage());
                    e.printStackTrace();
          StringBuffer sb = new StringBuffer();
          for (URL jar : classpath) {
               sb.append(jar.getPath());
               sb.append(File.pathSeparatorChar);
          String ops[] = new String[] {"-cp" , sb.toString() };This along with disabling security does the trick for me. However I had to use NetX jnlp implementation, since when doing this trick the sun version returns the original urls (like http://internal/webstart/build.jar), whereas NetX returns the path of the downloaded files (e.g. /tmp/build.jar).
I will accept your suggestion and post to bugs.sun.com.
Ciao.