diff -urEbwB IPAddress-5.3.3/IPAddress/build.xml IPAddress-5.3.3.new/IPAddress/build.xml
--- IPAddress-5.3.3/IPAddress/build.xml	2020-09-25 06:20:46.000000000 +0200
+++ IPAddress-5.3.3.new/IPAddress/build.xml	2022-03-08 00:29:25.281988242 +0100
@@ -67,7 +67,7 @@
 					We compile everything java 9, then we will recompile java 8 but not the module-info.java -->
 		<!-- first compile entirely as java 9 to ensure compliance with module configuration -->
 		<echo message="compiling as Java 9"/>
-		<javac srcdir="${src_location}" destdir="${bin_location}" debug="on"
+		<javac srcdir="${src_location}" destdir="${bin_location}" debug="on" encoding="utf-8"
 				source="9" target="9" failonerror="false" verbose="false" createMissingPackageInfoClass="false">
 			<include name="${rootPackagePath}/**/*.java"/>
 		</javac>
@@ -79,7 +79,7 @@
     		</fileset>
     	</delete>
 		<echo message="compiling as Java 8"/>
-		<javac srcdir="${src_location}" destdir="${bin_location}" debug="on"
+		<javac srcdir="${src_location}" destdir="${bin_location}" debug="on" encoding="utf-8"
 				source="1.8" target="1.8" failonerror="false" verbose="false" createMissingPackageInfoClass="false"
 				deprecation="true">
 			<include name="${rootPackagePath}/**/*.java"/>
@@ -100,6 +100,7 @@
 				${rootPackage}.format.util.sql, ${rootPackage}.ipv6, ${rootPackage}.ipv4, ${rootPackage}.mac"
 			stylesheetfile="${functional_doclet_dir}/stylesheet_custom.css"
 			author="true"
+			encoding="utf-8"
 			public="true"
 			use="true"
 			Windowtitle="IPAddress javadoc by seancfoley"