Converted use of Collection.size() to Collection.isEmpty().


ConnectionHandlerTableModel.java:
In getAddressPortString(), inverted if statement.

IndexTask.java, RebuildIndexTask.java, StatusPanel.java, TableViewEntryPanel.java:
Extracted methods.

ControlPanelInfo.java:
Removed duplicated logic by inverting inner and outer if statements.

BaseDNPanel.java:
In okClicked(), simplified the code.

LDAPEntryPanel.java:
In saveChanges(), In okClicked(), simplified the code.

SimplifiedViewEntryPanel.java:
In getValues(), simplified code.