8207318: KeyStore#getInstance(File, LoadStoreParameter) does not load the keystore

Reviewed-by: mullan

src/java.base/share/classes/java/security/KeyStore.java

@@ -1807,6 +1807,7 @@ public class KeyStore {
                     keystore.load(dataStream, password);
                 } else {
                     keystore.keyStoreSpi.engineLoad(dataStream, param);
+                    keystore.initialized = true;
                 }
                 return keystore;
             }