sun/security/tools/jarsigner/ec.sh

sometime fail in TL nightly, seems only on 5.10 sparc.

Here's one simple case that can reproduce such failure:

import java.security.KeyPairGenerator;

public class A1 {
    public static void main(String[] args) throws Exception {
        for (int i=0; i<1000; i++) {
            KeyPairGenerator k = KeyPairGenerator.getInstance("EC");
            k.initialize(521);
            k.genKeyPair().getPublic().getEncoded();
        }
    }
}