diff --git a/build.xml b/build.xml
index 9142ae48f15bcf3611cc6ba2d864ff0a0e3126ce..9c211f36580352fb158dc7d7ee04cb7861f8e177 100644
--- a/build.xml
+++ b/build.xml
@@ -466,7 +466,7 @@ Key references:
     </macrodef>
 
     <!-- target tasks common to all build files ===================================================================== -->
-    <target name="all" depends="echo.timestamp,check.ant.version,clean.backups,commonSetup,validate.full,build,upload" description="clean backups, build, zip and upload this X3D archive">
+    <target name="all" depends="echo.timestamp,check.ant.java.versions,clean.backups,commonSetup,validate.full,build,upload" description="clean backups, build, zip and upload this X3D archive">
         <echo message="Copying latest build.log.txt to subdirectory ${archive.name}/_archive/"/>
         <copy file="build.log.txt" todir="_archive/" overwrite="true" failonerror="false"/>
     </target>
@@ -519,15 +519,16 @@ Key references:
         <antcall target="echo.timestamp"/>
     </target>
 
-    <target name="build" depends="echo.timestamp,check.ant.version,clean.duplicates,get.slideshowTools,commonSetup,processScenes,catalog,zip" description="build this X3D archive">
+    <target name="build" depends="echo.timestamp,check.ant.java.versions,clean.duplicates,get.slideshowTools,commonSetup,processScenes,catalog,zip" description="build this X3D archive">
         <!-- note no validation occurs -->
         <antcall target="echo.timestamp"/>
         <echo message="build complete."/>
     </target>
 
-    <target name="check.ant.version" description="Check Apache Ant version">
-       <echo message="saxon: using ${saxon.dir}/${saxon.jar}"/>
+    <target name="check.ant.java.versions" description="Check Apache Ant and Java versions">
        <echo message="ant.version=${ant.version}"/>
+       <echo message="  java.home=${java.home}"/>
+       <echo message=" saxon path=${saxon.dir}/${saxon.jar}"/>
        <echoproperties/>
        <fail message="Build requires Apache Ant version 1.7, 1.8, 1.9 or 1.10">
            <condition>