Fixed a build failure.

tests/spring-compat-tests/pom.xml

diff --git a/tests/spring-compat-tests/pom.xml b/tests/spring-compat-tests/pom.xml
index 7ea7f3b..21b3a1a 100644
--- a/tests/spring-compat-tests/pom.xml
+++ b/tests/spring-compat-tests/pom.xml
@@ -125,7 +125,7 @@
                     </connectors>
                     <webApp>
                         <resourceBases>
-                            <resourceBase>src/main/webapp</resourceBase>
+                            <resourceBase>${basedir}/src/main/webapp</resourceBase>
                             <resourceBase>${project.build.directory}/webapp</resourceBase>
                         </resourceBases>
                     </webApp>