java.nio.file.AccessDeniedException: C:\Program Files\Apache Software Foundation\Tomcat 8.0\conf\tomcat-users.xml
   at sun.nio.fs.WindowsException.translateToIOException(WindowsException.java:83)
   at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:97)
   at sun.nio.fs.WindowsException.rethrowAsIOException(WindowsException.java:102)
   at sun.nio.fs.WindowsFileSystemProvider.newByteChannel(WindowsFileSystemProvider.java:230)
   at java.nio.file.spi.FileSystemProvider.newOutputStream(FileSystemProvider.java:430)
   at java.nio.file.Files.newOutputStream(Files.java:172)
   at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj.getOutputStream(FileObj.java:136)
   at org.netbeans.modules.masterfs.filebasedfs.fileobjects.FileObj.getOutputStream(FileObj.java:103)
   at org.openide.filesystems.FileObject.getOutputStream(FileObject.java:806)
   at org.netbeans.modules.tomcat5.util.TomcatUsers.createUser(TomcatUsers.java:136)
   at org.netbeans.modules.tomcat5.ui.wizard.AddInstanceIterator.instantiate(AddInstanceIterator.java:153)
   at org.netbeans.modules.j2ee.deployment.impl.bridge.BridgingServerWizardProvider$InstantiatingIteratorBridge.instantiate(BridgingServerWizardProvider.java:101)
   at org.netbeans.modules.server.ui.wizard.AddServerInstanceWizard$AddServerInstanceWizardIterator.instantiate(AddServerInstanceWizard.java:409)
   at org.openide.WizardDescriptor.callInstantiateOpen(WizardDescriptor.java:1629)
   at org.openide.WizardDescriptor.callInstantiate(WizardDescriptor.java:1570)
   at org.openide.WizardDescriptor.access$2300(WizardDescriptor.java:92)
   at org.openide.WizardDescriptor$Listener$2$1.run(WizardDescriptor.java:2257)
   at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1423)
   at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)