java.lang.IllegalStateException: WARNING: Going from readAccess to writeAccess, see #10778: http://www.netbeans.org/issues/show_bug.cgi?id=10778 
   at org.openide.util.Mutex.enterImpl(Mutex.java:669)
   at org.openide.util.Mutex.enter(Mutex.java:634)
   at org.openide.util.Mutex.writeEnter(Mutex.java:612)
   at org.openide.util.Mutex.writeAccess(Mutex.java:433)
   at org.netbeans.spi.project.support.ant.PropertyUtils.putGlobalProperties(PropertyUtils.java:165)
   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.openide.util.Mutex.writeAccess(Mutex.java:436)
   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:258)
   at org.netbeans.api.project.ProjectManager.createProject(ProjectManager.java:361)
   at org.netbeans.api.project.ProjectManager.access$300(ProjectManager.java:85)
   at org.netbeans.api.project.ProjectManager$2.run(ProjectManager.java:282)
   at org.netbeans.api.project.ProjectManager$2.run(ProjectManager.java:233)
   at org.openide.util.Mutex.readAccess(Mutex.java:330)
   at org.netbeans.api.project.ProjectManager.findProject(ProjectManager.java:233)
   at org.netbeans.modules.project.ui.OpenProjectList.URLs2Projects(OpenProjectList.java:1061)
   at org.netbeans.modules.project.ui.OpenProjectList.access$700(OpenProjectList.java:132)
   at org.netbeans.modules.project.ui.OpenProjectList$LoadOpenProjects.loadOnBackground(OpenProjectList.java:400)
   at org.netbeans.modules.project.ui.OpenProjectList$LoadOpenProjects.run(OpenProjectList.java:321)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:1957)