--- a/jaxp/build.properties	Wed Jul 05 17:03:05 2017 +0200
+++ b/jaxp/build.properties	Wed Nov 11 11:17:51 2009 -0800
@@ -34,6 +34,10 @@
 # one of the standard user build.properties files (see build.xml)
 javac.jar=${bootstrap.dir}/lib/javac.jar
 
+# The tools.jar is needed in the classpath to compile these sources
+jdk.home=${java.home}/..
+tools.jar=${jdk.home}/lib/tools.jar
+
 # options for the <javac> tasks used to compile the tools
 javac.source = 7
 javac.target = 7