In a recent project the developers in my team have encountered some unexpected differences in behaviour at runtime. What works fine in one environment could result in a server error in other - supposedly equivalent - environments.
The code and configuration of the web application should in theory be the same, so I'd like to have a way of checking what is actually different under the hood at runtime.
My initial thoughts are that the following will be relevant:
- environment variables
- JVM properties
- loaded classes (or packages)
Exposing the data is one aspect, but in order for this to be useful beyond a one off check it would be good to have a way of quickly highlighting any differences between the output from two setups.
If the data is all key-value pairs then I expect the detecting of differences to be trivial.
UPDATE:
The problem JSPs turned out to be including some expression language syntax.
The code and configuration of the web application should in theory be the same, so I'd like to have a way of checking what is actually different under the hood at runtime.
My initial thoughts are that the following will be relevant:
- environment variables
- JVM properties
- loaded classes (or packages)
Exposing the data is one aspect, but in order for this to be useful beyond a one off check it would be good to have a way of quickly highlighting any differences between the output from two setups.
If the data is all key-value pairs then I expect the detecting of differences to be trivial.
UPDATE:
The problem JSPs turned out to be including some expression language syntax.
