Bug 381318: Add Javadoc to getConfigured-Properties and exec-Operations 

Change-Id: I2fa4dbea1ed6751fe2880f61a1965adae4edc75e
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=381318
Signed-off-by: Otmar Caduff <otmar.caduff@bsiag.com>
Reviewed-on: https://git.eclipse.org/r/37565
Reviewed-by: Judith Gull <jgu@bsiag.com>
Tested-by: Judith Gull <jgu@bsiag.com>