Java HotSpot Virtual Machine

We are having a very frustrating time dealing with an issue affecting every java or jdk application we run. We've tried upgrading to jdk 1.4.2-06 and 1.4.2-07 with no luck. Does anybody have any ideas what's going on or how I can fix this? This is very urgent to get this up and running on this server, so I really appreciate any prompt responses. Take a look, it's the craziest thing I've ever seen. And don't forget it was working fine until after we upgraded an email server which automatically upgraded other libraries in this system. I'm really not sure when this started happening so I'm not sure if the email server side effects had anything to do with this. This is happening for all versions of the jdk installed:

[root@supra bin]# ls -lah
total 1.7M
drwxr-xr-x 2 root bin 4.0K Jan 25 01:54 .
drwxr-xr-x 8 root root 4.0K Jan 25 01:54 ..
-rwxr-xr-x 1 root bin 65K Jan 15 15:08 appletviewer
-rwxr-xr-x 1 root bin 65K Jan 15 15:12 extcheck
-rwxr-xr-x 1 root bin 1.1K Jan 15 15:22 HtmlConverter
-rwxr-xr-x 1 root bin 65K Jan 15 14:58 idlj
-rwxr-xr-x 1 root bin 65K Jan 15 15:00 jar
-rwxr-xr-x 1 root bin 65K Jan 15 15:00 jarsigner
-rwxr-xr-x 1 root bin 63K Jan 15 14:52 java
-rwxr-xr-x 1 root bin 65K Jan 15 14:53 javac
-rwxr-xr-x 1 root bin 65K Jan 15 14:53 javadoc
-rwxr-xr-x 1 root bin 65K Jan 15 14:54 javah
-rwxr-xr-x 1 root bin 65K Jan 15 15:09 javap
-r-xr-xr-x 1 root bin 1.7K Jan 15 15:09 java-rmi.cgi
-rwxr-xr-x 1 root bin 65K Jan 15 15:12 jdb
-rwxr-xr-x 1 root bin 65K Jan 15 14:59 keytool
-rwxr-xr-x 1 root bin 65K Jan 15 15:00 kinit
-rwxr-xr-x 1 root bin 65K Jan 15 15:00 klist
-rwxr-xr-x 1 root bin 65K Jan 15 15:00 ktab
-rwxr-xr-x 1 root bin 65K Jan 15 15:10 native2ascii
-rwxr-xr-x 1 root bin 65K Jan 15 15:11 orbd
-rwxr-xr-x 1 root bin 65K Jan 15 15:00 policytool
-rwxr-xr-x 1 root bin 65K Jan 15 15:09 rmic
-rwxr-xr-x 1 root bin 65K Jan 15 15:09 rmid
-rwxr-xr-x 1 root bin 65K Jan 15 15:09 rmiregistry
-rwxr-xr-x 1 root bin 65K Jan 15 15:10 serialver
-rwxr-xr-x 1 root bin 65K Jan 15 15:11 servertool
-rwxr-xr-x 1 root bin 65K Jan 15 15:11 tnameserv
[root@supra bin]# pwd
/usr/java/j2sdk1.4.2_07/bin
[root@supra bin]# ./java
Killed
[root@supra bin]# ./javah
Killed
[root@supra bin]# ./javac
Killed
[root@supra bin]# ./appletviewer
Killed
[root@supra bin]# ./keytool
Killed
[root@supra bin]# ./rmic
Killed
[root@supra bin]# ./jar
Killed
[root@supra bin]# ./javadoc
Killed
[root@supra bin]#