From reading licensing agreements, it is clear that "buying" software comes down to buying the right/license to use the software subject to any restrictions specified in the agreement (no reverse engineering, removing copyright notices, or the like). Buyers are almost always allowed to make copies for the purpose of backup. And originally, downloading another copy of the software, minus the license key, was freely allowed.
Privately sharing the java files without the license key is technically one step beyond what was probably explicitly allowed in the original agreement, but it is fully in keeping with the agreement's economic purposes and expectations. Transferring the java file between licensed users in no way interferes with the reasonable expectations of the new licensor, nor does it endanger their economic interests: As purchasers, both parties are bound by the license agreement which was designed to protect the sellers interests. I can't see how a new owner could impose new restrictions on the license.
In my view, private transfer of the program files between licensed users does not unreasonably impact the new owner's business interests. They are not selling software, although their product incorporates software. If you could no longer use ClickRepair there is no reason to believe you would simply buy the new, much more expensive hardware+software product; there are several inexpensive or free alternatives.
You may choose to go for an inexpensive software alternative, but SweetVinyl is a lovely addition to a living-room stereo system. The only downside, if you can afford it, is the time it takes to boot up (it seems to contain a small computer), but that's a minor problem unless you always power off everything after a listening session. And it does have the advantage of being largely made in the USA (I say as a Canadian friend).
