Problem
Websphere 7 uses JSP 2.1 (Java EE5). JSP 2.1 does NOT support method calls within EL expressions so ${destForm.flightTable.get(loop.index)}
is invalid because of the call to get() within the EL expression.
Solution:
To solve your problem, your EL expression should be ${destForm.flightTable[loop.index].tripId}
assuming that destForm.flightTable
is a List/Array which can be accessed by index.
Note: JSP 2.2+ (Java EE6+) allows method calls in EL expression like you did.