Network Design
Design
Sequences
Start up NPCClient
Start up Client
Diagrams error (with plantuml command): Apr 06, 2026 12:39:46 AM java.util.prefs.FileSystemPreferences$1 run WARNING: Couldn't create user preferences directory. User preferences are unusable. Apr 06, 2026 12:39:46 AM java.util.prefs.FileSystemPreferences$1 run WARNING: java.io.IOException: No such file or directory Error line 2 in file: /tmp/diagrams_inaf3639196d8c.plantuml Some diagram description contains errors Apr 06, 2026 12:39:49 AM java.util.prefs.FileSystemPreferences checkLockFile0ErrorCode WARNING: Could not lock User prefs. Unix error code 2. Apr 06, 2026 12:39:49 AM java.util.prefs.FileSystemPreferences syncWorld WARNING: Couldn't flush user prefs: java.util.prefs.BackingStoreException: Couldn't get file lock.