Fix RPM release and sourcever build property

xz-java.spec

@@ -2,7 +2,7 @@
 
 Name:           xz-java
 Version:        1.9
-Release:        11%{?dist}
+Release:        1%{?dist}
 Summary:        Java implementation of XZ data compression
 License:        Public Domain
 URL:            http://tukaani.org/xz/java.html
@@ -41,7 +41,7 @@ This package contains the API documentation for %{name}.
 # package-list from oracle.com. Create a dummy package-list to prevent that.
 mkdir -p extdoc && touch extdoc/package-list
 
-%ant maven -Dsourcever=11
+%ant maven
 
 %install
 %mvn_artifact build/maven/xz-%{version}.pom build/jar/xz.jar