Create project with .properties file
Scenario 1:

• open .properties file with JBoss Tools Properties Editor
• remove .properties file from project via OS command
• click on .properties file in JBDS
• file disappear, expected behavior is to display dialog saying that file was deleted and asking if changes should be saved

Scenario 2:

• open .properties file with JBoss Tools Properties Editor
• make some changes to .properties file via JBoss Tools Properties Editor and do not save them
• make some changes to .properties file via external editor and save them
• click on .properties file in JBDS
• dialog informing that .properties file was externally modified and asking user if he wants to reload file is displayed
• either user choose yes or no from this dialog changes are reloaded, expected behavior is that when user says no to reload changes changes are not reloaded