AxTpa - TPA Plugin with Multi-Server Support

AxTpa - TPA Plugin with Multi-Server Support -----

TPA plugin with GUI, combat detection, multi-server support, and full customization

Latest Changes
AxTpa v1.2.9-BETA

Cross-Server TPA Improvements

Enhanced Cross-Server TPA Support
Improved the cross-server TPA functionality with better messaging and flag handling.

Fixed isHere Flag Transmission

Fixed incorrect

Code (Text):

isHere

flag being sent as

Code (Text):

false

instead of

Code (Text):

true

for TPAHere cross-server requests

Updated

Code (Text):

TPACommand.handleTPAHere()

to correctly pass

Code (Text):

isHere=true

for both ForwardToPlayer and Forward messaging

Fixed

Code (Text):

MessagingManager.sendTPAAccept()

to use

Code (Text):

writeBoolean()

instead of

Code (Text):

writeUTF()

for better reliability

Added compatibility fallback in

Code (Text):

handleIncomingAccept()

to read both boolean and string formats for backward compatibility

Cross-Server Teleportation Flow

Fixed countdown initialization for TPAHere cross-server (countdown now starts on target's server)

Improved destination information display during countdown (shows server name for cross-server TPA)

Fixed pending teleport completion for both TPA normal and TPAHere cross-server scenarios

Updated

Code (Text):

PendingCrossServerTeleport

class to include

Code (Text):

isHere

flag for proper direction handling

Enhanced

Code (Text):

completePendingCrossServerTeleport()

to handle both teleport directions correctly

Message Handling Improvements

Added debug logs to track

Code (Text):

isHere

flag throughout the entire TPA flow

Fixed request search logic in

Code (Text):

handleRemoteAccept()

to correctly match requests by

Code (Text):

isHere

flag

Improved error messages when pending requests are not found

Click to expand...

Cross-server improvements involved changes in multiple core components:

Code (Text):

TPACommand.java

- TPAHere cross-server request handling

Fixed

Code (Text):

sendTPARequestToPlayer()

call to pass

Code (Text):

isHere=true

for TPAHere

Fixed

Code (Text):

sendTPARequest()

call to pass

Code (Text):

isHere=true

for TPAHere

Added debug logging for cross-server request creation

Code (Text):

TPAManager.java

- Cross-server teleportation logic

Fixed countdown initialization to allow TPAHere cross-server countdown on target's server

Updated destination information display to show server name for cross-server scenarios

Fixed

Code (Text):

acceptLocation

handling to prevent null pointer exceptions

Updated

Code (Text):

PendingCrossServerTeleport

to include

Code (Text):

isHere

flag

Enhanced

Code (Text):

completePendingCrossServerTeleport()

to handle both teleport directions

Fixed countdown completion logic to connect target to requester's server for TPAHere

Improved destination player validation during countdown

Code (Text):

MessagingManager.java

- Message protocol updates

Changed

Code (Text):

sendTPAAccept()

to use

Code (Text):

writeBoolean(isHere)

for clarity

Updated

Code (Text):

handleIncomingAccept()

to read boolean with string fallback

Added

Code (Text):

isHere

parameter to

Code (Text):

sendPendingTeleport()

Updated

Code (Text):

handleIncomingPendingTeleport()

to read and store

Code (Text):

isHere

flag

Added debug logging throughout the messaging flow

Code (Text):

TPAGUI.java

- GUI acceptance handling

Fixed GUI to correctly pass

Code (Text):

request.isHere()

when sending cross-server accept messages

Added debug logs for cross-server acceptance

Click to expand...

1. TPAHere Cross-Server Teleportation

Issue: TPAHere cross-server teleportation may not complete in all scenarios

Status: In Beta - Active Development

Workaround: Use TPA normal cross-server for reliable multi-server teleportation

Report: Please report any issues with TPAHere cross-server with detailed logs

2. Cross-Server Request Matching

Issue: In rare cases, pending requests may not be found if servers have clock desynchronization

Status: Fixed - Improved request matching logic with

Code (Text):

isHere

flag

Workaround: Ensure all servers have synchronized time

Click to expand...

1. TPACommand.java - isHere Flag Fix

Problem: TPAHere requests were being sent with

Code (Text):

isHere=false

instead of

Code (Text):

true

Fix: Updated both

Code (Text):

sendTPARequestToPlayer()

and

Code (Text):

sendTPARequest()

calls to pass

Code (Text):

true

for TPAHere

Impact: TPAHere requests now correctly identify as TPAHere throughout the entire cross-server flow

2. TPAManager.java - Countdown Initialization

Problem: Countdown wasn't starting for TPAHere cross-server because requester wasn't on target's server

Fix: Added special handling to allow countdown to start on target's server for TPAHere cross-server

Impact: TPAHere cross-server countdown now works correctly

3. TPAManager.java - Pending Teleport Completion

Problem:

Code (Text):

completePendingCrossServerTeleport()

only handled TPA normal direction

Fix: Added

Code (Text):

isHere

flag to

Code (Text):

PendingCrossServerTeleport

and updated logic to handle both directions

Impact: TPAHere cross-server teleportation can now complete when target arrives at requester's server

4. MessagingManager.java - Boolean Protocol

Problem:

Code (Text):

isHere

was being sent as string, causing parsing issues

Fix: Changed to use

Code (Text):

writeBoolean()

and

Code (Text):

readBoolean()

with string fallback for compatibility

Impact: More reliable message transmission and backward compatibility maintained

Click to expand...

----------, Nov 6, 2025

Bug fixes

Latest Changes
AxTpa v1.2.8-RELEASE

Critical Bug Fixes

NullPointerException Overhaul
Fixed multiple critical

Code (Text):

NullPointerException

bugs that could cause the plugin to crash unexpectedly, focusing on making the TPA process more resilient.

GUI and Teleport Checks

Fixed null pointer when **destination name or UUID is null** in the GUI.

Added validation for server name before string replacement.

**Fixed null pointer** when the destination player is **offline** during teleport execution.

Message Handling Safety

Fixed null pointer when replacing player names in messages.

Added **null checks** for all config messages before processing.

Added null checks before all

Code (Text):

.replace()

operations to prevent errors with empty strings.

Countdown and Request Management

Fixed null pointer in countdown messages (Title/Actionbar).

Added null checks for destination player names in the countdown system.

Fixed potential null pointer in

Code (Text):

hasPendingRequest()

with empty lists.

Teleport Execution Safety

Fixed null pointer when destination player is null during teleport.

Added validation before accessing player world and location.

Better error handling for failed teleports.

Click to expand...

These critical fixes primarily involved changes in the core TPA logic:

Code (Text):

TPAGUI.java

- GUI updates and null safety checks

Added validation for destinationName and destinationUUID before use

Added null checks for server name

Added null checks for config messages before processing

Added fallback values for missing player names

Code (Text):

TPAManager.java

- Comprehensive null safety improvements

Message replacements - Added null checks before all

Code (Text):

.replace()

operations

Countdown system - Safe handling of title and actionbar messages

Teleport execution - Validation before teleporting

Request management - Null filtering in stream operations

Destination info - Safe handling of all config messages

Click to expand...

1. TPAGUI.java - NullPointerException in updateInventory()

Problem:

Code (Text):

destinationName

and

Code (Text):

destinationUUID

could be null

Fix: Added validation before using these values

Impact: Prevents GUI crashes when player data is missing

2. TPAManager.java - NullPointerException in Message Replacements

Problem:

Code (Text):

target.getName()

could be null when replacing placeholders

Fix: Added null checks before all

Code (Text):

.replace()

operations

Impact: Prevents crashes when player names are missing

3. TPAManager.java - NullPointerException in Countdown System

Problem: Countdown messages and destination player names could be null

Fix: Added null checks for all countdown-related messages

Impact: Prevents crashes during teleport countdown

4. TPAManager.java - NullPointerException in executeTeleport()

Problem:

Code (Text):

destinationPlayer

could be null when accessing

Code (Text):

.getWorld()

Fix: Added validation before using destination player

Impact: Prevents crashes when destination player goes offline

5. TPAManager.java - NullPointerException in getDestinationInfo()

Problem: Config messages could be null when doing

Code (Text):

.replace()

Fix: Added null checks for all config messages before processing

Impact: Prevents crashes when config messages are missing

6. TPAManager.java - Bug in hasPendingRequest()

Problem: No validation for empty lists or null elements in stream

Fix: Added

Code (Text):

.filter(r -> r != null)

and empty list check

Impact: Prevents crashes when request list has issues

Click to expand...