--- /dev/null
+/* Copyright (C) 2005 Free Software Foundation
+
+ This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License. Please consult the file "LIBGCJ_LICENSE" for
+details. */
+
+package gnu.gcj.runtime;
+
+import java.io.File;
+import java.io.FilenameFilter;
+import java.io.IOException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.StringTokenizer;
+
+/**
+ * This is a URLClassLoader that has an extra helper method for
+ * handling things like java.ext.dirs.
+ */
+class HelperClassLoader extends URLClassLoader
+{
+ HelperClassLoader()
+ {
+ super(new URL[0]);
+ }
+
+ /**
+ * This is a helper method that adds all the jar and zip files from
+ * a given list of paths to this class loader. The paths are taken
+ * from a system property whose name is provided as an argument.
+ */
+ final void addDirectoriesFromProperty(String propName)
+ {
+ StringTokenizer st
+ = new StringTokenizer (System.getProperty (propName, ""),
+ File.pathSeparator);
+ try
+ {
+ while (st.hasMoreElements ())
+ {
+ String dirname = st.nextToken ();
+ File dir = new File (dirname);
+ if (dir.exists ())
+ {
+ if (! dirname.endsWith (File.separator))
+ dirname = dirname + File.separator;
+ String files[] = dir.list (new FilenameFilter ()
+ {
+ public boolean accept (File dir, String name)
+ {
+ return name.endsWith (".jar") || name.endsWith (".zip");
+ }
+ });
+ for (int i = files.length - 1; i >= 0; i--)
+ addURL(new URL("file", "", -1, dirname + files[i]));
+ }
+ }
+ }
+ catch (java.net.MalformedURLException x)
+ {
+ // This should never happen.
+ throw new RuntimeException(x);
+ }
+ }
+}