rc2, winxp, jdk1.5.0_03:
The build was successful once I removed the qoutation marks from the tools.jar parameter in boss-portal-2.0\tools\bin\ant.bat:
rem if exist "%JAVA_HOME%\lib\tools.jar" call "%ANT_HOME%\bin\lcp.bat" "%JAVA_HOME%\lib\tools.jar"
if exist "C:\Program Files\Java\jdk1.5.0_03\lib\tools.jar" call "%ANT_HOME%\bin\lcp.bat" C:\Program Files\Java\jdk1.5.0_03\lib\tools.jar