diff --git a/net/jgroups/files/patch-build.xml b/net/jgroups/files/patch-build.xml
new file mode 100644
index 000000000000..d0c9bf6ae90b
--- /dev/null
+++ b/net/jgroups/files/patch-build.xml
@@ -0,0 +1,18 @@
+--- build.xml.orig	2025-12-14 20:22:21 UTC
++++ build.xml
+@@ -92,7 +92,6 @@
+             depends="prepare"
+             description="Compiles all Java files">
+         <javac destdir="${compile.dir}"
+-               source="1.6"
+                classpathref="jg.classpath"
+                includeantruntime="false"
+                debug="on"
+@@ -115,7 +114,6 @@
+             depends="prepare"
+             description="Compiles all Java files">
+         <javac destdir="${compile.dir}"
+-               source="1.6"
+                classpathref="jg.classpath"
+                includeantruntime="false"
+                debug="on"