java.lang.IllegalStateException: WARNING: Going from readAccess to writeAccess, see #10778: http://www.netbeans.org/issues/show_bug.cgi?id=10778 
   at org.netbeans.modules.openide.util.DefaultMutexImplementation.enterImpl(DefaultMutexImplementation.java:440)
   at org.netbeans.modules.openide.util.DefaultMutexImplementation.enter(DefaultMutexImplementation.java:405)
   at org.netbeans.modules.openide.util.DefaultMutexImplementation.writeEnter(DefaultMutexImplementation.java:381)
   at org.netbeans.modules.openide.util.DefaultMutexImplementation.writeAccess(DefaultMutexImplementation.java:290)
   at org.openide.util.Mutex.writeAccess(Mutex.java:299)
   at org.netbeans.spi.project.support.ant.PropertyUtils.putGlobalProperties(PropertyUtils.java:166)
   at org.netbeans.modules.python.api.PythonPlatformManager$2.run(PythonPlatformManager.java:217)
   at org.netbeans.modules.python.api.PythonPlatformManager$2.run(PythonPlatformManager.java:212)
   at org.netbeans.modules.openide.util.DefaultMutexImplementation.writeAccess(DefaultMutexImplementation.java:293)
   at org.openide.util.Mutex.writeAccess(Mutex.java:299)
   at org.netbeans.modules.python.api.PythonPlatformManager.storePlatform(PythonPlatformManager.java:212)
   at org.netbeans.modules.python.api.PythonPlatformManager.getBundledPlatform(PythonPlatformManager.java:98)
   at org.netbeans.modules.python.api.PythonPlatformManager.load(PythonPlatformManager.java:176)
   at org.netbeans.modules.python.api.PythonPlatformManager.<init>(PythonPlatformManager.java:61)
   at org.netbeans.modules.python.api.PythonPlatformManager.getInstance(PythonPlatformManager.java:112)
   at org.netbeans.modules.python.project.ui.actions.RunSingleCommand.<init>(RunSingleCommand.java:34)
   at org.netbeans.modules.python.project.PythonActionProvider.<init>(PythonActionProvider.java:45)
   at org.netbeans.modules.python.project.PythonProject.createLookup(PythonProject.java:95)
   at org.netbeans.modules.python.project.PythonProject.<init>(PythonProject.java:72)
   at org.netbeans.modules.python.project.PythonProjectType.createProject(PythonProjectType.java:31)
   at org.netbeans.modules.project.ant.AntBasedProjectFactorySingleton.loadProject(AntBasedProjectFactorySingleton.java:264)
   at org.netbeans.modules.projectapi.nb.NbProjectManager.createProject(NbProjectManager.java:401)
   at org.netbeans.modules.projectapi.nb.NbProjectManager.access$300(NbProjectManager.java:94)
   at org.netbeans.modules.projectapi.nb.NbProjectManager$2.run(NbProjectManager.java:314)
   at org.netbeans.modules.projectapi.nb.NbProjectManager$2.run(NbProjectManager.java:243)
   at org.netbeans.modules.openide.util.DefaultMutexImplementation.readAccess(DefaultMutexImplementation.java:252)
   at org.openide.util.Mutex.readAccess(Mutex.java:250)
   at org.netbeans.modules.projectapi.nb.NbProjectManager.findProject(NbProjectManager.java:243)
   at org.netbeans.api.project.ProjectManager.findProject(ProjectManager.java:164)
   at org.netbeans.modules.project.ui.OpenProjectList.fileToProject(OpenProjectList.java:1234)
   at org.netbeans.modules.project.ui.ProjectChooserAccessory.getProject(ProjectChooserAccessory.java:352)
   at org.netbeans.modules.project.ui.ProjectChooserAccessory.access$000(ProjectChooserAccessory.java:89)
   at org.netbeans.modules.project.ui.ProjectChooserAccessory$ProjectFileView.run(ProjectChooserAccessory.java:598)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1425)
   at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:59)
   at org.openide.util.lookup.Lookups.executeWith(Lookups.java:294)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2038)