Please see 4469701's description and attachments for the test case and
setup instructions.

To reproduce this bug:

1. Install a JDK 1.4 beta or JDK 1.2.2 into Java Web Start's list of known JREs.
2. Remove any existing JDK 1.3 entries.
3. Launch the "jdk1.3" link from the "hello" example from 4469701.

Installation will fail with "No JRE version found in launch file for this
system". The error appears to be coming from the installation file downloaded by
JWS from java.sun.com. Full text of the error is in 13-launch-file-bug.txt.

While this is unlikely to impact users currently, since a JRE 1.3 ships with
Java Web Start, it looks like it may become an issue once 1.4 ships.

N/A

The JRE installation requires a JRE 1.3 or above to be installed to work, since
the JRE installer is signed using a RSA-based certificate. Unfortunatly,
it is basically impossible to obtain a DSA based certificate these days so
a 1.2.2 system could also be used.

In the test case in this report, no FCS version of a 1.3 or 1.4 JRE is
installed, and the auto-install fails correctly. If an FCS version of 1.4
was installed (e.g., the product-version was 1.4.0) then the installation
would have succeded.
  xxxxx@xxxxx   2001-06-15