java.lang.IllegalStateException: Listener 1395697644 is already attached to J2SEProjectPlatform 526426527 for Project teko-alarmdb.
   at org.netbeans.modules.javawebstart.JWSProjectOpenHook$PlatformListener.attach(JWSProjectOpenHook.java:207)
   at org.netbeans.modules.javawebstart.JWSProjectOpenHook.projectOpened(JWSProjectOpenHook.java:91)
   at org.netbeans.spi.project.ui.ProjectOpenedHook$1.projectOpened(ProjectOpenedHook.java:85)
   at org.netbeans.spi.project.ui.support.UILookupMergerSupport$OpenHookImpl.projectOpened(UILookupMergerSupport.java:248)
   at org.netbeans.spi.project.ui.ProjectOpenedHook$1.projectOpened(ProjectOpenedHook.java:85)
   at org.netbeans.modules.project.ui.OpenProjectList.notifyOpened(OpenProjectList.java:1230)
   at org.netbeans.modules.project.ui.OpenProjectList.doOpenProject(OpenProjectList.java:1311)
   at org.netbeans.modules.project.ui.OpenProjectList.open(OpenProjectList.java:793)
   at org.netbeans.modules.project.ui.groups.Group.open(Group.java:593)
   at org.netbeans.modules.project.ui.groups.Group.setActiveGroup(Group.java:191)
   at org.netbeans.modules.project.ui.groups.GroupsMenu$Menu$1$1.run(GroupsMenu.java:172)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1432)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2042)