Learn how to a build a cloud-first strategyRegister Now


Java 1.5 - 1.7 and JNLP

Posted on 2014-08-11
Medium Priority
Last Modified: 2014-08-13
Here's the situation, we have two applications; one runs with Java 1.5 and other with 1.6.  At the moment, I have 1.5 and 1.6 installed and both of these applications start.  When I install Java 1.7, then the application that needs 1.6 does not run.  I did not test to see if the 1.5 app starts when 1.7 was installed.
I'm not the developer, and I don't know the connection between Java 1.7 and JNLP relative to our applications, but this is the problem;  When I have Java 1.7 installed the application which uses Java 1.6 does not start.  The javaws stopped at the "app.jnlp"  My question is; what might be the problem.  I realize that I have not provided enough information, yet I am looking for a point to start, moving toward a solution.  I'm now trying to get a hold of the various jnlp files that are used.
My other question is; is there a way of inserting "breakpoints" into the jnlp files?
Question by:chima
  • 3
  • 2

Expert Comment

by:Ravi Kalla
ID: 40253965
One quick solution for this would be to install all JREs(1.5, 1.6 & 1.7) and point your application to the corresponding JRE during application startup.

Author Comment

ID: 40254147
Ravi, this is true, but it be nice for this selection to be done automatically.

Author Comment

ID: 40254148
Might this error message be helpful:
#### Java Web Start Error:
#### Missing required Permissions manifest attribute in main jar: http://jlvqaappm:8180/tiger-qa/lib/Tiger-Desktop_obfs.jar

Accepted Solution

Ravi Kalla earned 2000 total points
ID: 40255703
There seem to be a security enhancement starting from Java7 update 51.

Please refer below link for reference -


Author Closing Comment

ID: 40258406

Featured Post

Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction This article is the last of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article covers our test design approach and then goes through a simple test case example, how …
In this post we will learn how to connect and configure Android Device (Smartphone etc.) with Android Studio. After that we will run a simple Hello World Program.
This tutorial covers a practical example of lazy loading technique and early loading technique in a Singleton Design Pattern.
This tutorial will introduce the viewer to VisualVM for the Java platform application. This video explains an example program and covers the Overview, Monitor, and Heap Dump tabs.
Suggested Courses
Course of the Month21 days, 3 hours left to enroll

810 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question