LDEV-4745 address issue where classes are not fetched from class loader when they already exist #2267
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This appears to arise when the PageSource for a page is flushed/cleared but when the class still exists in the class loader and using the latest version of the source.
Fix works by checking whether we already have a compiled binary class file that is newer than source file and attempting to fetch the class from the class loader.
Would be good to get a simple test case for this to add to the test suite. I was able to reproduce this in Lucee 5.4 with a Preside application with a lot of loaded classes. Page source appeared to be cleared in high memory usage scenarios. This change (slightly different in 5.4) resolved completely.