RFR: 8262935: Add missing logging to sun.net.httpserver.ServerImpl

[Julia Boes]

Small fix to add logging to catch blocks where it was previously missing.

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Commit messages:
 - add logging

Changes: https://git.openjdk.java.net/jdk/pull/2808/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2808&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8262935
  Stats: 6 lines in 1 file changed: 2 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2808.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2808/head:pull/2808

PR: https://git.openjdk.java.net/jdk/pull/2808