From 4287dbdd8a54737474936afb32cffc3662b07cf1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Juan=20Farr=C3=A9?=
 <13270880+jafarre-bi@users.noreply.github.com>
Date: Mon, 23 Mar 2026 12:18:31 +0100
Subject: [PATCH] Add an opt-out for the separator newline

---
 .../maven/plugins/shade/resource/AppendingTransformer.java  | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/apache/maven/plugins/shade/resource/AppendingTransformer.java b/src/main/java/org/apache/maven/plugins/shade/resource/AppendingTransformer.java
index 71fa4684..28ac3a95 100644
--- a/src/main/java/org/apache/maven/plugins/shade/resource/AppendingTransformer.java
+++ b/src/main/java/org/apache/maven/plugins/shade/resource/AppendingTransformer.java
@@ -30,9 +30,11 @@
 
 /**
  * A resource processor that appends content for a resource, separated by a newline.
+ * The newline separator can be disabled with {@code <separator>false</separator>}.
  */
 public class AppendingTransformer extends AbstractCompatibilityTransformer {
     String resource;
+    boolean separator = true;
 
     ByteArrayOutputStream data = new ByteArrayOutputStream();
 
@@ -47,7 +49,9 @@ public boolean canTransformResource(String r) {
     public void processResource(String resource, InputStream is, List<Relocator> relocators, long time)
             throws IOException {
         IOUtil.copy(is, data);
-        data.write('\n');
+        if (separator || !data.toString().endsWith("\n")) {
+            data.write('\n');
+        }
         if (time > this.time) {
             this.time = time;
         }