[BUG] httpmate does not invoke exception mappers for ExceptionInInitializerError

[lestephane]

Describe the bug

When instantiating a use case, an ExceptionInInitializerError can be thrown when an exception is thrown in the class' static initializer. This exception is currently not handled:

final Object useCase = useCaseInstantiator.instantiate(useCaseClass);

To Reproduce

• Throw an exception from a use case static initializer
• Configure httpmate to instantiate that use case
• Causes the instantiation to happen
• The default exception mapper is not invoked

Expected behavior

• The exception mapping logic should occur when an ExceptionInInitializerError is thrown, regardless of whether it happens during use case instantiation or use case invocation.