java.lang.IllegalArgumentException: jar:file:/Users/jeanmarc/Library/Application Support/NetBeans/8.1/modules/ext/btrace-client.jar!/
   at org.netbeans.spi.project.libraries.support.LibrariesSupport.convertURLsToURIs(LibrariesSupport.java:263)
   at org.netbeans.modules.project.libraries.LibraryDeclarationParser.validateLibraryContent(LibraryDeclarationParser.java:394)
   at org.netbeans.modules.project.libraries.LibraryDeclarationParser.writeLibraryDefinition(LibraryDeclarationParser.java:355)
   at org.netbeans.modules.project.libraries.LibrariesStorage$2.run(LibrariesStorage.java:320)
   at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:127)
   at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:519)
   at org.netbeans.modules.project.libraries.LibrariesStorage.writeLibrary(LibrariesStorage.java:305)
   at org.netbeans.modules.project.libraries.LibrariesStorage.addLibrary(LibrariesStorage.java:357)
   at org.netbeans.api.project.libraries.LibraryManager.addLibrary(LibraryManager.java:275)
   at org.netbeans.modules.btrace.project.Installer.restored(Installer.java:79)
   at org.netbeans.core.startup.NbInstaller.loadCode(NbInstaller.java:471)
   at org.netbeans.core.startup.NbInstaller.loadImpl(NbInstaller.java:394)
   at org.netbeans.core.startup.NbInstaller.access$000(NbInstaller.java:105)
   at org.netbeans.core.startup.NbInstaller$1.run(NbInstaller.java:346)
   at org.openide.filesystems.FileUtil$2.run(FileUtil.java:439)
   at org.openide.filesystems.EventControl.runAtomicAction(EventControl.java:127)
   at org.openide.filesystems.FileSystem.runAtomicAction(FileSystem.java:519)
   at org.openide.filesystems.FileUtil.runAtomicAction(FileUtil.java:423)
   at org.openide.filesystems.FileUtil.runAtomicAction(FileUtil.java:443)
   at org.netbeans.core.startup.NbInstaller.load(NbInstaller.java:343)
   at org.netbeans.ModuleManager.enable(ModuleManager.java:1352)
   at org.netbeans.ModuleManager.enable(ModuleManager.java:1157)
   at org.netbeans.core.startup.ModuleList.installNew(ModuleList.java:340)
   at org.netbeans.core.startup.ModuleList.trigger(ModuleList.java:276)
   at org.netbeans.core.startup.ModuleSystem.restore(ModuleSystem.java:301)
   at org.netbeans.core.startup.Main.getModuleSystem(Main.java:181)
   at org.netbeans.core.startup.Main.getModuleSystem(Main.java:150)
   at org.netbeans.core.startup.Main.start(Main.java:307)
   at org.netbeans.core.startup.TopThreadGroup.run(TopThreadGroup.java:123)
   at java.lang.Thread.run(Thread.java:745)