Sonar: Exception handler should preserve exception

Sonar: Exception handler should preserve exception

Fix 29 instances of Sonar issue "Exception handlers should preserve the
original exception" labeled as Major. The rule description says: "When
handling a caught exception, two mandatory informations should be
logged: 1) some context to ease the reproduction of the issue; 2) the
original's exception, for its message and stack trace."

Change-Id: I172b52d86d98ad735c940738dc5c35abc1cf675e
Signed-off-by: Lorand Jakab <lojakab@cisco.com>