[13] RFR 8228456: Enhance tests after JDK-8217375

[Weijun Wang]

> On Jul 22, 2019, at 10:02 AM, Weijun Wang <weijun.wang at oracle.com> wrote:
> 
>   http://cr.openjdk.java.net/~weijun/8228456/webrev.00/

Another problem of PreserveRawManifestEntryAndDigest.java is that there are too many output and most part of the test output is "overflow"ed. Is the Utils.echoManifest() calls really necessary? All jar files can be retained and we can inspect the content later.

Or, you can redirect the manifest text and all output of jarsigner calls into separate text files.

--Max