Notes

Adding the tn5250j Java Applet to a Juniper SA for access to an IBM iSeries system

Download the latest non-jse6 version without includes from TN5250j. Tested with tn5250j.jar from tn5250j-0.6.3.zip on a Juniper SA 1000 with software version 6.0R3.1 build 12507.

Go to Resource Profiles and click on Web.
Click on New Profile…
Select Hosted Java Applet as Type and click on Edit List below Choose Applet Resources.
Click on New Applet…
Click on Browse…
Browse to and doubleclick on tn5250j.jar
Fill in the name as tn5250j-0.6.3. Do not mark Uncompress jar/cab file. Click on OK.
Click Close.
Wait till the process finishes upload.
Click on Close Window
Back on the New Web Application Resource Profile screen fill in:
- Name: tn5250j-0.6.3
- Description: 5250 terminal emulator in Java.
- Applet to use: tn5250-0.6.3
- Place a checkmark at Autopolicy: Java Access Control
- Type in *.* for Resource and select Allow socket access for Action. Click on Add.
Click on Save and Continue.
Select the role(s) to which you want to add this web application resource profile on the left hand side and click on Add.
Click on Save Changes.
Click on New Bookmark…
On the Bookmarks screen fill in:
- Name: bookmarkname
- Description: 5250 system
- Place a checkmark at Bookmark opens new window… and leave both Do not display the browser address bar and Do not display the browser toolbar options checked.
- Specify which user roles should get this bookmark by selecting Subset of selected Roles…, select the roles on the left hand side and click on Add.

Copy and paste the following, originally taken from My5250App.html from tn5250j-0.6.3.zip, to the text field below the Generate HTML button:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" 
  "http://www.w3.org/TR/html4/loose.dtd">
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
<TITLE>
tn5250j - iSeries system name
</TITLE>
</HEAD>
<BODY>
iSeries system name<BR>

<APPLET
  codebase="<< CODEBASE >>"
  CODE     = "org.tn5250j.My5250Applet.class"
  NAME     = "tn5250 - Java tn5250 Client"
  WIDTH    = "800"
  HEIGHT   = "600"
  HSPACE   = "0"
  VSPACE   = "0"
  ALIGN    = "top"
  ARCHIVE  = "tn5250j.jar"
>
<PARAM NAME ="host" VALUE= "10.1.1.1" />
<PARAM NAME ="-e" VALUE= " " />
<PARAM NAME ="-132" VALUE= "." />
<PARAM NAME ="-cp" VALUE= "37" />
<PARAM NAME ="-L nl" />

</APPLET>
</BODY>
</HTML>

Modify the above to reflect the correct hostname/ip-address/desired resolution/etc. Refer to the documentation for the supported parameters and add the ones you need, if any.
Click on Save Changes.
Done.

Repeat steps 15 to 19 to add additional bookmarks as needed.

Sources:
Juniper - Community Home:J-Net : Forums : SSL VPN : TN 5250 applet - pb using hosted java applet ...
Juniper Forums - Proper RDP applet - Full screen and ProperJavaRDP config (PDF)
Juniper - Community Home:J-Net : Forums : SSL VPN : Add VNC like we can with RDP