I forgot to list (enum Option) DESTPROTECTED as an option of (enum Command) IMPORTKEYSTORE. Here is the fix. Please take a review:
diff --git a/src/java.base/share/classes/sun/security/tools/keytool/Main.java b/src/java.base/share/classes/sun/security/tools/keytool/Main.java --- a/src/java.base/share/classes/sun/security/tools/keytool/Main.java +++ b/src/java.base/share/classes/sun/security/tools/keytool/Main.java @@ -206,7 +206,7 @@ IMPORTKEYSTORE("Imports.one.or.all.entries.from.another.keystore", SRCKEYSTORE, DESTKEYSTORE, SRCSTORETYPE, DESTSTORETYPE, SRCSTOREPASS, DESTSTOREPASS, - SRCPROTECTED, SRCPROVIDERNAME, DESTPROVIDERNAME, + SRCPROTECTED, DESTPROTECTED, SRCPROVIDERNAME, DESTPROVIDERNAME, SRCALIAS, DESTALIAS, SRCKEYPASS, DESTKEYPASS, NOPROMPT, PROVIDERCLASS, PROVIDERARG, PROVIDERPATH, V), Will be labeled noreg-trivial. Thanks Max