[FIXED JENKINS-25400] Rework fix of JENKINS-22769 (c04cdcd9) to put the burden on each listener to impersonate ACL.SYSTEM if it needs to.

Properly close listeners for asynchronous threads.

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>

Resource leak may happen during the search of manifest file.

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>

The issue is related to JENKINS-18351.

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>

Adjust my prior change to better utilize structured form submission...

Adjust my prior change to better utilize structured form submission to accomodate a plugins that are not using p:config-assignedLabel

Adjust my prior change to better utilize structured form submission to accomodate a few plugins that are improperly submitting data through this processing logic

JNAerator ( https://code.google.com/p/jnaerator/ ) was helpful
for generating the Java code from the C struct.