--- old/src/java.base/share/classes/sun/security/tools/keytool/Main.java	2019-06-28 07:22:52.220641600 +0200
+++ new/src/java.base/share/classes/sun/security/tools/keytool/Main.java	2019-06-28 07:22:50.421552200 +0200
@@ -49,7 +49,7 @@
 import java.security.cert.CertificateException;
 import java.security.cert.URICertStoreParameters;
 
-
+import java.security.spec.AlgorithmParameterSpec;
 import java.text.Collator;
 import java.text.MessageFormat;
 import java.util.*;