Javaws error "Unable to locate a Java Runtime to invoke"

Question

No Java runtime present, requesting install.
Unable to locate a Java Runtime to invoke.
If i do java -version:
java -version
java version "1.6.0_33"
Java(TM) SE Runtime Environment (build 1.6.0_33-b03-424-10M3720)
Java HotSpot(TM) 64-Bit Server VM (build 20.8-b03-424, mixed mode)
I already try:
-Delete cache and temp file (library/cache)
- I delete old and new installation of java folders inside: /System/Library/Frameworks/JavaVM.framework/Versions
- I delte folder: /System/Library/Java
- Already download manually the Java from Apple site, reinstall 2 times and reboot... not solved.
ANy idea?

Answer 1

Thanks to Brody and Mark Jalbert to help me to find the problem I hope this not ocurred again.
I give some feedback if this problem ocurred to other person, I see same error from 2009/2010... so is not a current problem, is a MacOS software problem of folders/permissions.
Best regards!
========================================================
Now I reboot, and all is solved (I already reboot 3 times and check and uncheck box you say).
Now something change=
TigreDARK:~ Myuser$ /usr/libexec/PlistBuddy -c "Print" $HOME/Library/Preferences/ByHost/com.apple.java.JavaPreferences.*
Dict {
    GeneralByTask = Dict {
        Any = Dict {
            PrefsVersion = 2
            WebComponentsLastUsed = 361728896.000000
            WebComponentsEnabled = true
TigreDARK:~ Myuser$
=====================================================
IMPORTANT:
Is not a good idea to add permissions to all folders, and give wrong permissions or more permissions o files.... is really danger, please do a backup first if you want to do a test...
I think the permissions, and the reboot solve, but I'm not sure what really do this change....
how i fix the problem:
1)
/System/Library/Java/Support/Deploy.bundle/Contents/Resources/Java
files i add permissions of my user, and write read:
deploy.jar
javaws.jar
2)
/System/Library/Java/Support/Deploy.bundle/Contents/Home/Lib
I add here too a R+W permission to "system" and to my user r+w
3)
I moved the ~/Library/Preferences/ByHost/com.apple.java.JavaPreferences.*.plist file and ran Java Preferences again.
4) Shutdown, and boot again.
IF PROBLEM PERSIST:=
Go to folder of JAVAWS path:
cd /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin
Lunch you jsp application:
TigreDARK:bin XXXXXXX$ ./javaws /Users/myuser/Desktop/login.jsp
If give you this error, like my error PROBLEM, is a permission of files problem....
TigreDARK:bin XXXXXXXX$ Error occurred during initialization of VM
java/lang/ClassNotFoundException: error in opening JAR file <Permission denied> /System/Library/Java/Support/Deploy.bundle/Contents/Home/lib/deploy.jar