@Test public void getInstanceShouldNotBeNull() throws Exception { VFS vsf = VFS.getInstance(); Assert.assertNotNull(vsf); }
public static VFS getInstance() { return VFSHolder.INSTANCE; }
VFS { public static VFS getInstance() { return VFSHolder.INSTANCE; } }
VFS { public static VFS getInstance() { return VFSHolder.INSTANCE; }  }
VFS { public static VFS getInstance() { return VFSHolder.INSTANCE; }  static VFS getInstance(); static void addImplClass(Class<? extends VFS> clazz); abstract boolean isValid(); List<String> list(String path); }
VFS { public static VFS getInstance() { return VFSHolder.INSTANCE; }  static VFS getInstance(); static void addImplClass(Class<? extends VFS> clazz); abstract boolean isValid(); List<String> list(String path); static final Class<?>[] IMPLEMENTATIONS; static final List<Class<? extends VFS>> USER_IMPLEMENTATIONS; }