Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: JAVA, IE8 and Windows 7

05 Jul 2012   #1

JAVA, IE8 and Windows 7

Hi ...
some times when i am into a Portal when i give cllic in some options i get an error :
java.lang.ClassCastException: incompatible with com.miportal.portaldauno.middleware.dto.InstitutionDTO

what is the best recommendation for my pc:
windows 7 (64 o 32 bits), IE8 (32 o 64 bits) java (1.6 1.8 ?)

I guess i have this issue because i have Windows 7 64 bits and IE8 32 bits ...

please let me know your thoughts to install the best version among Java, IE8 and Windows 7
Thanks in advance.

My System SpecsSystem Spec
05 Jul 2012   #2

Microsoft Windows 10 Professional / Windows 7 Professional

Unless you post computer specs we cant help you decide which windows version is the right one for you, but since you on XP it may be an old computer, leave it on XP and upgrade Java to latest version.
My System SpecsSystem Spec
05 Jul 2012   #3

Microsoft Windows 8.1 Pro 64-bit

no, that doesn't affect it. I highly recommend upgrading to IE9:

It might even fix this error for you. While I am not familiar with the code exactly, I would recommend uninstalling java (if you want to, upgrading to IE9), and then reinstalling java 32 bit once more from here:

However! If you decide to upgrade to IE9, you will need this java version instead (get it after you upgrade, not before): Download Java for Windows

(All advice for Windows 7 64 bit only)
My System SpecsSystem Spec

06 Jul 2012   #4


Thank you very much for your answer .. i will verify it.
My System SpecsSystem Spec
06 Jul 2012   #5

Microsoft Windows 8.1 Pro 64-bit

Some people don't even use java anymore, me included. If you don't play internet games, you might consider leaving it uninstalled. You could always reinstall it come the event that you realize you do need it.
My System SpecsSystem Spec

 JAVA, IE8 and Windows 7

Thread Tools

Similar help and support threads
Thread Forum
Java Error : java.lang.RuntimeException when Updating Vuze
Hello to everyone! I am currently experiencing this Java problem that I only encounter when updating my Vuze Bittorrent Client. I am just updating it to newer version but every time I try, the error pops up. The complete error is: "An error occurred: java.lang.RuntimeException:...
Java Update-Now I get a security warning for programs that run java
Updated Java to v7 Update 11, websites that use java are coming up with a security warning asking if I want to run this application? It says: An application from the location below is requesting permission to run. Location: Then I have to click "Run" so the program will...
General Discussion
Can install Java JRE 7u2 but not Java JDK 7u2 on Windows 7
I'm having problems installing Java 7 on 64-bit Windows 7 Pro. I can run the following installers (and uninstall them) repeatedly with no problem: jdk-6u30-windows-i586.exe jre-7u2-windows-i586.exe but when I run the Java JDK 7u2 installer: jdk-7u2-windows-i586.exe it silently quits...
Exploit:Java/CVE-2008-5353.B;Trojan:Java/Selace.A and B
Help! I ran the Windows Safety Scanner. It detected four issues, but apparently, the scanner cannot clean three: Exploit:Java/CVE-2008-5353.B Trojan:Java/Selace.A Trojan:Java/Selace.B There is no concrete information on how to get rid of these unwanted visitors and prevent them from...
System Security

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 06:29.
Twitter Facebook Google+