Run the following two commands (as the same user that will be running the install):
ls -l /export/home/data/SoftwareSource/TcEng2005SR1/install/jre/bin/java
file /export/home/data/SoftwareSource/TcEng2005SR1/install/jre/bin/java

This will provide some more info on the nature of that file - it's looking a bit like permissions or something wrong with the java binary (eg it could be a wrapper script)