Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

SerialPortEventListener error 302 Wrong Class

Posted on 2001-07-25
8
Medium Priority
?
298 Views
Last Modified: 2013-11-23
I am trying to implement SerialPortEventListener.  I downloaded the latest SUN comm api,
when i add the comm.jar file to my 'required libraries' in JBuilder 4 i get an error 302, wrong class.  

what is a wrong class? i tried unjaring the jar file so i could get to the SerialPortEventListener.class directly and I have the same problem.
0
Comment
Question by:JohnSpooner
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 2
8 Comments
 

Accepted Solution

by:
JDay earned 400 total points
ID: 6322591
It is very important that you have commapi in the correct place.

Is your project in the same directory as your jdk and where is your comapi located?

In order for the Java communications API to find ports the file javax.comm.properties must be in the correct place. The preferred location is in <jdk>/lib. See the installation instructions for alternate locations
and further information.
0
 

Author Comment

by:JohnSpooner
ID: 6325355

this answer addresses a different issue, not the compile issue.

i tried import javax.com.SerialPortEventListenerrather than
com.* and now i do not have this error.

if it works or not, this is a different issue i will see
0
 

Expert Comment

by:amp072397
ID: 6791937
JohnSpooner:

Please provide feedback in your open questions.

thanks!
amp
community support moderator
0
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.

 

Author Comment

by:JohnSpooner
ID: 6792256
The comments did not help, the comenter did not know about embedded application for this.  I figured this one out on my own, the answer was not correct.  My comment shows this.

I didn't want to be negative to someone who has provided a comment.
0
 

Author Comment

by:JohnSpooner
ID: 6792257
The comments did not help, the comenter did not know about embedded application for this.  I figured this one out on my own, the answer was not correct.  My comment shows this.

I didn't want to be negative to someone who has provided a comment.
0
 

Expert Comment

by:amp072397
ID: 6792273
If you give us the answer here, JohnSpooner, I can refund your points.

thanks!
amp
community support moderator
0
 

Author Comment

by:JohnSpooner
ID: 6808814
the problem was not related to the javax library, but to a thrird part library provided for the embedded application.

the follwoing comment was meant to explain this
"this answer addresses a different issue, not the compile issue.

i tried import javax.com.SerialPortEventListenerrather than
com.* and now i do not have this error."

i don't really need the points back.
0
 

Author Comment

by:JohnSpooner
ID: 6808815
see comment
0

Featured Post

Build and deliver software with DevOps

A digital transformation requires faster time to market, shorter software development lifecycles, and the ability to adapt rapidly to changing customer demands. DevOps provides the solution.

Question has a verified solution.

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

Java contains several comparison operators (e.g., <, <=, >, >=, ==, !=) that allow you to compare primitive values. However, these operators cannot be used to compare the contents of objects. Interface Comparable is used to allow objects of a cl…
This was posted to the Netbeans forum a Feb, 2010 and I also sent it to Verisign. Who didn't help much in my struggles to get my application signed. ------------------------- Start The idea here is to target your cell phones with the correct…
Viewers learn about the scanner class in this video and are introduced to receiving user input for their programs. Additionally, objects, conditional statements, and loops are used to help reinforce the concepts. Introduce Scanner class: Importing…
Viewers will learn about the regular for loop in Java and how to use it. Definition: Break the for loop down into 3 parts: Syntax when using for loops: Example using a for loop:
Suggested Courses

705 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