diff --git a/jflex-build_xml.patch b/jflex-build_xml.patch
new file mode 100644
index 0000000..c8e8cd5
--- /dev/null
+++ b/jflex-build_xml.patch
@@ -0,0 +1,33 @@
+--- src/build.xml.orig	2004-05-19 19:37:43.000000000 -0400
++++ src/build.xml	2008-02-22 14:04:46.000000000 -0500
+@@ -59,7 +59,14 @@
+           description="compile all classes">
+     <javac srcdir="." 
+            destdir="../lib" 
+-           target="1.1"
++           classpath="."
++           debug="on" />
++  </target>
++ 
++  <target name="compile-bootstrap"
++          description="compile all classes during a bootstrap">
++    <javac srcdir="." 
++           destdir="../lib" 
+            classpath="."
+            debug="on" />
+   </target>
+@@ -83,6 +90,14 @@
+     	 jarfile="../lib/JFlex.jar" 
+     	 manifest="manifest"/>
+   </target>
++ 
++  <target name="jar-bootstrap" depends="compile-bootstrap,copy" description="make JFlex.jar">
++    <jar basedir="../lib" 
++         includes="JFlex/**,java_cup/**,skeleton" 
++         jarfile="../lib/JFlex.jar" 
++         manifest="manifest"/>
++  </target>
++
+ 
+   <target name="libclean" description="remove compiled classes">
+     <delete dir="../lib/JFlex" />
diff --git a/jflex.spec b/jflex.spec
index ff89b0a..247237b 100644
--- a/jflex.spec
+++ b/jflex.spec
@@ -32,18 +32,17 @@
 
 Summary:        Fast Scanner Generator
 Name:           jflex
-Version:        1.3.5
-Release:        2jpp.2%{?dist}
+Version:        1.4.1
+Release:        0jpp.1%{?dist}
 Epoch:          0
-License:        GPL
+License:        GPLv2
 URL:            http://jflex.de/
-Group:          Development/Libraries/Java
-Source0:        http://downloads.sourceforge.net/jflex/jflex-1.3.5.tar.gz
-Patch0:         jflex-Makefile.patch
-Patch1:         jflex-CharSet_java.patch
-Patch2:         jflex-StateSet_java.patch
+Group:          Development/Libraries
+Source0:        http://jflex.de/%{name}-%{version}.tar.gz
+Patch0:         jflex-build_xml.patch
 BuildRequires:  jpackage-utils >= 0:1.5
-BuildRequires:  make
+BuildRequires:  ant
+BuildRequires:  junit
 BuildRequires:  java-devel
 Requires:       java
 BuildArch:      noarch
@@ -63,24 +62,30 @@ standalone tool.
 
 %package javadoc
 Summary:        Javadoc for %{name}
-Group:          Development/Documentation
+Group:          Documentation
 
 %description javadoc
 %{summary}.
 
 %prep
-%setup -q -n JFlex
+%setup -q
+%patch0 -b .sav
 for j in $(find . -name "*.jar"); do mv $j $j.no; done
 find . -name "*.class" -exec rm {} \;
 
 %{__sed} -i 's/\r//' COPYRIGHT
-%patch0 -b .sav
-%patch1 -b .sav
-%patch2 -b .sav
+
 %build
 
 pushd src
-make all javadoc
+# intial build using the autogenerated sym.java LexParse.java and LexScan.java
+# these are created by the jflex ant task which needs to be built first
+CLASSPATH=%{_javadir}/junit.jar:%{_javadir}/java_cup.jar ant jar-bootstrap
+# now that the JFlex.jar has been build we can use jflex ant tasks
+# removing the generated files and rebuilding using the JFlex.jar
+CLASSPATH=%{_javadir}/junit.jar:%{_javadir}/java_cup.jar:../lib/JFlex.jar ant genclean libclean jar
+
+javadoc -sourcepath . -d ../api JFlex
 popd
 
 %install
@@ -119,6 +124,12 @@ rm -rf $RPM_BUILD_ROOT
 # -----------------------------------------------------------------------------
 
 %changelog
+* Fri Feb 22 2008 Matt Wringe <mwringe@redhat.com> - 0:1.4.1-0jpp.1
+- Patch build file to allow bootstrap building
+
+* Mon Feb 18 2008 Lubomir Kundrak <lkundrak@redhat.com> - 0:1.4.1-0jpp.1
+- Naive attempt to update to newer version
+
 * Mon Apr 02 2007 Matt Wringe <mwringe@redhat.com> - 0:1.3.5-2jpp.2
 - Add patches jflex-CharSet_java.patch and jflex-StateSet_java.patch
   to allow building with the new gcj