FilesCouldBeMissed Exception if the current plugin override a private file of one other plugin

Version 2.0.3 Beta
Eclipse neon

If i have one plugin named Plugin1, who override Plugin2 private file we have an exception :

!MESSAGE An internal error occurred during: "Check preview sync".
!STACK 0
java.lang.NullPointerException
    at com.jalios.ejpt.sync.strategy.FilesCouldBeMissed.getFilesInWebappPublicPluginDirectory(FilesCouldBeMissed.java:60)
    at com.jalios.ejpt.sync.strategy.FilesCouldBeMissed.run(FilesCouldBeMissed.java:44)
    at com.jalios.ejpt.sync.strategy.GlobalSyncStrategy.run(GlobalSyncStrategy.java:40)
    at com.jalios.ejpt.jobs.Util.previewSync(Util.java:37)
    at com.jalios.ejpt.jobs.SyncJob.run(SyncJob.java:31)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

Directory tree :

WEB-INF/plugins/Plugin1/plugin.xml
WEB-INF/plugins/Plugin1/properties/language/fr.prop
WEB-INF/plugins/Plugin1/properties/language/en.prop
WEB-INF/plugins/Plugin1/properties/plugin.prop
WEB-INF/plugins/Plugin2/properties/fr.prop

WEB-INF/plugins/Plugin1/plugin.xml contains the webapp declaration of "WEB-INF/plugins/Plugin2/properties/fr.prop"

If i remove "WEB-INF/plugins/Plugin2/properties/fr.prop" it's work

[OlivierJaquemet]

@InvadersMustDie44 Thanks for this bug report.
I'll see if we can have a look at it.

In the meantime, you can dig inside the code and do a pull request if you find a fix, we'll be glad to receive your contribution.