Fixed latest PR, probably the last commit from me on this.

.github/ISSUE_TEMPLATE/bug-report.md

@@ -0,0 +1,33 @@
+---
+name: Bug Report
+about: Report a Bug or an Issue with Barrels.
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+## Description (Required)
+<!-- A clear and detailed description of what exactly the Issue consists of. -->
+<!-- Please try to write as much as possible. "it doesn't work" is not sufficient. -->
+<!-- Try to write at least 4-6 sentences. -->
+
+## Steps to reproduce the Issue (Required)
+<!-- Youtube Videos and Screenshots are recommended! -->
+
+## Expected behavior (Required)
+<!-- What did you expect to happen? -->
+
+## Server Log / Error Report
+<!-- Take a look at your Server Log and please provide any error reports you can find via https://pastebin.com/ -->
+<!-- We may discard your Issue if you just post it here, as it's unreadable for us. Please use Pastebin! -->
+
+## Environment (Required)
+<!-- We may also close your Issue if you are not providing the exact version numbers. -->
+<!-- "latest" IS NOT A VERSION NUMBER. -->
+<!-- You can also just run "/sf versions" and show us a screenshot of that. -->
+
+ - Minecraft Version:
+ - CS-CoreLib Version:
+ - Slimefun Version:
+ - Barrels Version: 

.github/workflows/maven.yml

@@ -0,0 +1,23 @@
+name: Java CI
+
+on:
+  push:
+    branches:
+    - master
+  pull_request:
+    branches:
+    - master
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up JDK 1.8
+      uses: actions/setup-java@v1
+      with:
+        java-version: 1.8
+    - name: Build with Maven
+      run: mvn package --file pom.xml

src/main/java/me/john000708/barrels/DisplayItem.java

@@ -47,29 +47,32 @@ public static void updateDisplayItem(Block b, int capacity, boolean allow) {
         }
 
         Optional<Item> entity = getEntity(b);
+        Item item;
 
         if (!entity.isPresent()) {
-            Item item = b.getWorld().dropItem(new Location(b.getWorld(), b.getX() + 0.5D, b.getY() + 1.2D, b.getZ() + 0.5D), stack);
+            item = b.getWorld().dropItem(new Location(b.getWorld(), b.getX() + 0.5D, b.getY() + 1.2D, b.getZ() + 0.5D), stack);
             item.setVelocity(new Vector(0, 0.1, 0));
             item.setCustomNameVisible(true);
 
             PersistentDataAPI.setString(item, NAMESPACED_KEY, toString(b));
         }
         else {
-            Item item = entity.get();
+            item = entity.get();
             item.setItemStack(stack);
         }
+
         item.setCustomName(nametag);
         item.setInvulnerable(true);
+
         if (!SlimefunUtils.hasNoPickupFlag(item)) {
-            SlimefunUtils.markAsNoPickup(item, "barrel");	
+            SlimefunUtils.markAsNoPickup(item, "barrel");
         }
     }
 
     public static void removeDisplayItem(Block b) {
         getEntity(b).ifPresent(item -> {
-		item.remove();
-		item.removeMetadata("no_pickup", Barrels.getInstance());
+            item.remove();
+            item.removeMetadata("no_pickup", Barrels.getInstance());
         });
     }