Network Design
Design
Sequences
Start up NPCClient
Start up Client
Diagrams error (with plantuml command): Nov 14, 2026 1:13:09 PM java.util.prefs.FileSystemPreferences$1 run WARNING: Couldn't create user preferences directory. User preferences are unusable. Nov 14, 2026 1:13:09 PM java.util.prefs.FileSystemPreferences$1 run WARNING: java.io.IOException: No such file or directory Error line 2 in file: /tmp/diagrams_in2a74d80aa24c.plantuml Some diagram description contains errors Nov 14, 2026 1:13:11 PM java.util.prefs.FileSystemPreferences checkLockFile0ErrorCode WARNING: Could not lock User prefs. Unix error code 2. Nov 14, 2026 1:13:11 PM java.util.prefs.FileSystemPreferences syncWorld WARNING: Couldn't flush user prefs: java.util.prefs.BackingStoreException: Couldn't get file lock.