When too many FileInputStreams are created, runtime aborts with the
message "java.lang.NoClassDefFoundError". (Incidentally, since File.close()
is called from File.finalize(), IMHO it would be a Good Thing to have
File's constructor do a GC before giving up if there aren't enough file
descriptors, but that's tangential to this bug).

This bug can be triggerd by the following code:

public class foo {
 
    public static void main(String args[]) {
        try {
            for (int i = 0; i < 1000; i++) {
                java.io.FileInputStream s
                        = new java.io.FileInputStream("/etc/passwd");
            }
        } catch (Exception ex) {
            System.out.println(ex);
        }
        System.out.println("Normal exit");
    }
}

Running it produces:
    (env.n) billf@jovial:~/tmp$ java foo
    java.lang.NoClassDefFoundError