1. A method, comprising: loading source code within a managed runtime computing environment, wherein the source code is in human readable form and cannot execute in the managed runtime computing environment within a computer unless at least one transformation operation is performed on the source code; comparing, by the computer, a message digest generated using a hashing operation from the loaded source code with at least one of a plurality of cache entries; wherein each cache entry comprises a message digest generated using a hashing operation of previously received source code stored in place of the source code in the cache entry, a transformation of the previously received source code comprising a bytecode version of the source code, and a transform identifier specifying a transforming process selected from a plurality of discrete transforming processes used to generate the cache entry; wherein comparing comprises comparing a transform identifier of the loaded source code to the transform identifiers within the at least one of the plurality of cache entries; selecting a transformation for the loaded source code from a cache entry according to the comparison; and outputting the selected transformation for the source code from the cache entry according to the comparison.