git: openjdk/skara: Use very defensive programming in CSRCommand

[Erik Helin]

Changeset: 189ade65
Author:    Erik Helin <ehelin at openjdk.org>
Date:      2020-02-05 10:02:39 +0000
URL:       https://git.openjdk.java.net/skara/commit/189ade65

Use very defensive programming in CSRCommand

Reviewed-by: rwestberg

! bots/pr/src/main/java/org/openjdk/skara/bots/pr/CSRCommand.java
! json/src/test/java/org/openjdk/skara/json/JSONParserTests.java