hg: jdk/jdk: 8245151: jarsigner should not raise duplicate warnings on verification

[weijun.wang at oracle.com]

Changeset: 0b2e88024e7a
Author:    hchao
Date:      2020-05-19 11:55 +0800
URL:       https://hg.openjdk.java.net/jdk/jdk/rev/0b2e88024e7a

8245151: jarsigner should not raise duplicate warnings on verification
Reviewed-by: weijun

! src/jdk.jartool/share/classes/sun/security/tools/jarsigner/Main.java
! src/jdk.jartool/share/classes/sun/security/tools/jarsigner/Resources.java
! test/jdk/sun/security/tools/jarsigner/TimestampCheck.java