java.util.UUID UUID System.Guid System.Object java.util.UUID UUID.randomUUID() NewGuid System.Guid java.util.UUID UUID.randomUUID() java.util.UUID System.String g UUID.fromString(${g}) System.Guid Empty java.util.UUID UUID.fromString("00000000-0000-0000-0000-000000000000") BWTUYjLWt9lhNcsisL7KPlMEpMA=DEwlw/C876DDTf6CQdhYOCRAm40EZ3UibuZLz4igngKTcY4fuLbZYgzNVg+HDvx3Td0s2Fb+NE56jDRuvxFV5JtlH5zChw8wWIhIXpBEXy1cHtRP1Gzs9UyohW4qbhjg9EdKgYw+YKMAno5ekJzduVK1+GKR9ZJSNn6p5BOdfS4=