RFR: 4337793: Mark non-serializable fields of java.security.cert.Certificate and CertPath [v2]

[Sean Mullan]

> Please review this 20+ year old bug (!), which marks the non-serializable fields of Certificate and CertPath with the transient modifier. These classes use an alternate serialization mechanism by overriding the writeReplace method. However, the fields of each class were never marked as transient and as a result were incorrectly documented in the Serialized Form section of the javadoc.
> 
> CSR: https://bugs.openjdk.java.net/browse/JDK-8277128

Sean Mullan has updated the pull request incrementally with one additional commit since the last revision:

  Improve writeReplace methods to better describe what object is returned.
  Small wording improvements and use of {@code} in readResolve methods and CertPath serial fields.
  Corrected typo in type param of CertPathRep ctor (should be "Certificate type" and not "CertPath type").

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/6392/files
  - new: https://git.openjdk.java.net/jdk/pull/6392/files/98803b81..5bb207f7

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=6392&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=6392&range=00-01

  Stats: 26 lines in 2 files changed: 7 ins; 0 del; 19 mod
  Patch: https://git.openjdk.java.net/jdk/pull/6392.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/6392/head:pull/6392

PR: https://git.openjdk.java.net/jdk/pull/6392