David Maplesden created JEXL-146:
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Summary: Performance problem in Interpreter.unknownVariable
mechanism
Key: JEXL-146
URL: https://issues.apache.org/jira/browse/JEXL-146
Project: Commons JEXL
Issue Type: Bug
Affects Versions: 2.1.1, 3.0
Reporter: David Maplesden
When JEXL is used in non-strict mode it silently ignores unknown variables.
However it still constructs a {{JexlException.Variable}} exception, even though
it doesn't throw it.
Constructing exceptions in Java is expensive. If you happen to have a
situation where unknown variables are common then this becomes a performance
problem. It is showing up as an issue in our application.
Inspecting the source of {{Interpreter}} it looks like a similar issue could
also occur with a number of the other exceptions. They are always created,
even if they are not going to be thrown.
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