Index: /trunk/build.xml
===================================================================
--- /trunk/build.xml	(revision 15233)
+++ /trunk/build.xml	(revision 15234)
@@ -726,4 +726,8 @@
                     <!-- Skip javafx on Java 8/9, built for Java 10+ only -->
                     <regexp pattern="javafx.*"/>
+                </linecontainsregexp>
+                <linecontainsregexp negate="true" unless:set="isJava11">
+                    <!-- Skip http2 on Java 8/9/10, built for Java 11+ only -->
+                    <regexp pattern="http2.*"/>
                 </linecontainsregexp>
                 <tokenfilter>