Null check after calling LivingEntity.getTargetBlockExact()

CHANGELOG.md

@@ -7,6 +7,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## v1.12.6 (2020-11-17)
+
+### Fixed
+
+* Regression from version `= 1.12.5` caused `Uncaught error: java.lang.NullPointerException` when trying to target air
+
 ## v1.12.5 (2020-11-17)
 
 ### Changed

build.gradle

@@ -1,5 +1,5 @@
 def name = 'SignEdit'
-version '1.12.5'
+version '1.12.6'
 
 /*
  * Copyright (C) 2017-2020 Deltik <https://www.deltik.org/>

src/org/deltik/mc/signedit/commands/SignCommand.java

@@ -35,6 +35,7 @@
 import org.deltik.mc.signedit.listeners.SignEditListener;
 import org.deltik.mc.signedit.subcommands.SignSubcommand;
 import org.deltik.mc.signedit.subcommands.SignSubcommandInjector;
+import org.jetbrains.annotations.Nullable;
 
 import javax.inject.Inject;
 import javax.inject.Provider;
@@ -123,7 +124,8 @@ private void autointeract(Player player, SignEditInteraction interaction, ChatCo
         if (interaction == null) return;
 
         Block targetBlock = getTargetBlockOfPlayer(player);
-        BlockState targetBlockState = targetBlock.getState();
+        BlockState targetBlockState = null;
+        if (targetBlock != null) targetBlockState = targetBlock.getState();
         if (shouldDoClickingMode(targetBlock)) {
             listener.setPendingInteraction(player, interaction);
             comms.tellPlayer(comms.t("right_click_sign_to_apply_action"));
@@ -134,6 +136,7 @@ private void autointeract(Player player, SignEditInteraction interaction, ChatCo
         }
     }
 
+    @Nullable
     public static Block getTargetBlockOfPlayer(Player player) {
         try {
             Method method = Player.class.getMethod("getTargetBlockExact", int.class);