Adding pom changes from #49548. Hook the new TestSetSupport file up directly, and ensure the jar includes the .properties file. Patch from Jeremy Boynes
diff --git a/impl/pom.xml b/impl/pom.xml
index 2ab1992..5e71a17 100644
--- a/impl/pom.xml
+++ b/impl/pom.xml
@@ -120,6 +120,14 @@
   </dependencies> 
 
   <build>
+      <resources>
+          <resource>
+              <directory>src/main/java</directory>
+              <includes>
+                  <include>**/*.properties</include>
+              </includes>
+          </resource>
+      </resources>
     <plugins>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
@@ -137,7 +145,7 @@
           <includes>
             <include>org/apache/taglibs/standard/lang/jstl/test/StaticFunctionTests.java</include>
             <include>org/apache/taglibs/standard/TestVersion.java</include>
-            <include>org/apache/taglibs/standard/tag/**/Test*.java</include>
+            <include>org/apache/taglibs/standard/tag/common/core/TestSetSupport.java</include>
           </includes>
           <excludes>
             <!-- Old tests -->