Bug: Webstart jar sequence

[jburel]

This page specifies that "the jar containing the main class must be the
first jar listed" in the JNLP file:

​http://lopica.sourceforge.net/ref.html#jar

This doesn't seem to be true in webstart/templates/webstart/insight.xml,
and caused a failure for one of our users. It must be JVM version
dependent because it isn't a problem for me. But re-ordering fixed it
for her i.e. making omero.insight.jar first.

Jmarie: i have built a test application with the attribute main=true for the jar containing the main method. I will investigate

[jmoore]

Ordering any jar named settings.WEBSTART_JAR (default: omero.insight.jar) to the top. See ​https://github.com/openmicroscopy/openmicroscopy/pull/286 (used this ticket for general configuration)

[cxallan]

Example error message when this does occur:

An error occurred while launching/running the application.

Title: OMERO.insight
Vendor: The Open Microscopy Environment
Category: Launch File Error

Could not find main-class org.openmicroscopy.shoola.Main in http://.../static/webstart/jars/jai_imageio.jar

When the first few lines of the JNLP file look something like this:

<?xml version="1.0" encoding="utf-8"?>
<jnlp codebase="http://.../static/webstart/jars/" href="http://.../omero/webstart/jars/insight.jnlp">
  <information>
    <title>OMERO.insight</title>
    <vendor>The Open Microscopy Environment</vendor>
    <homepage href="http://www.openmicroscopy.org"/>
    <icon href="/static/webstart/img/icon-omero-insight.png"/>
    <shortcut online="false">
      <desktop/>
    </shortcut>
    <offline-allowed/>
  </information>
  <security>
      <all-permissions/>
  </security>
  <resources>
    <j2se version="1.5+" max-heap-size="512m"/>
    <jar href="jai_imageio.jar"/>
    <jar href="gluegen-rt.jar"/>
    <jar href="platform.jar"/>
    <jar href="mdbtools-java.jar"/>
...

Reinforcing the fact that this does happen in the wild. The example above is on Windows XP launched via Internet Explorer 8.

[jmoore <josh@…>]

(In [37e1f993070a84c1b8dc9e74308384e94b53b6f5/ome.git] on branch develop) Add webstart configuration (Fix #9478)

Initially, the webstart_jar configuration option was
added in order to allow proper ordering of the insight
jars. However, it made sense to configure all the
hard-coded properties at the same time.

This commit also includes two currently unused properties:

jnlp.omero.host and jnlp.omero.port

which can be used to select an initial server in insight.