Addressing mike's comment

build.xml

@@ -29,18 +29,9 @@
 
 	<!-- Get build number from Github CI -->
 	<property environment="envgithub"/>
-
-	<!-- Updates version-properties with a build number if this is a CI run -->
-	<target name="updateVersionPropertiesWithBuildNumber">
-		<if>
-			<isset property="envgithub.GITHUB_RUN_ID" />
-			<then>
-				<propertyfile file="${target.root}/classes/main/dwr-version.properties">
-					<entry key="build.number" value="${envgithub.GITHUB_RUN_ID}" />
-				</propertyfile>
-			</then>
-		</if>
-	</target>
+	<condition property="build.number" value="${envgithub.GITHUB_RUN_ID}">
+		<isset property="envgithub.GITHUB_RUN_ID" />
+	</condition>
 
 	<target name="init">
 		<mkdir dir="${build}" />
@@ -90,10 +81,23 @@
 		<replace casesensitive="false" file="target/pom.xml" token="{version}" value="${version}" />
 	</target>
 
+	<!-- Updates the build number in dwr-version.properties with the build number from CI -->
+	<target name="updateVersionPropertiesWithBuildNumber" description="Update dwr-version.properties with CI build number.">
+		<if>
+			<isset property="build.number" />
+			<then>
+				<propertyfile file="${target.root}/classes/main/dwr-version.properties">
+					<entry key="build.number" value="${build.number}" />
+				</propertyfile>
+			</then>
+		</if>
+	</target>
+
 	<!--=======================================================================-->
 	<target name="jar" depends="prepare, source" description="Create dwr.jar">
 		<build target="${target.root}" include="" modules="${modules}" />
 		<antcall target="setVersionInPom" />
+		<antcall target="updateVersionPropertiesWithBuildNumber" />
 		<jar destfile="${target.root}/dwr.jar" compress="true">
 			<fileset dir="${target.root}/classes/main" />
 		</jar>