When tried to build and launch the "JRE 1.4.2 auto-download installer sample" found at location: $j2sdk1.5.0/sample/jnlp/jreinstaller, found a couple of pproblems:

1) The README file was not clear - was not able to do the build in Windows, by just following the README file

2) There is no path mentioned to locate the jre installer LICENSE

3) When tried to make the build in sparc sol, I had to make changes in $j2sdk1.5.0/sample/jnlp/jreinstaller/build/solaris/jreinstallers/j2re1_4_2/GNUmakefile regarding the hard-coded values to something like:
   ..
   ..
   # Source files for the J2RE 1.4.2
   J2RE_BIN = /home/rk145013/test/j2re-1_4_2_04-solaris-sparc.sh
   J2RE_LICENSE = /home/rk145013/test/LICENSE
   ..
   ..
   
and then executed gnumake at $j2sdk1.5.0/sample/jnlp/jreinstaller/build/solaris/jreinstallers
These instructions are not mentioned in the README file

4) I was not able to launch an application using the JRE auto-installer, by following the README instructions. Please provide an example which can explain the last statement mentioned in the README file:
"In order for your application to use this JREInstaller, you will need to set
the j2se href tag in the application's jnlp file to point to the URL where you
host the installer."