Are there lock products out there specifically designed for easy handling when locked unlocked dozens of times a day?

I'm using a normal, chain-based lock at the moment and I'm annoyed because


I'm doing constant slight damage to the frame when removing the lock from the bicycle
I need to carry a key at all times, fumble it from my pocket when it's time to go (often in a thankless, noisy, roadside environment), and fumble the lock back onto the bicycle


Are there any solutions out there that make frequent use as painless, and still as secure, as possible? I'm thinking about something that works like a remote-controlled car door lock. It should, however, still be possible to attach the bike to an object to prevent it from getting carried away.


  Related: best bike lock



Question: Multiple Threads passing an object reference to static helper method
Answer: 
  will JVM create a new instance of the static method and its local variables into the Stack (excluding the object as it will be on the Heap) for every call by multiple threads?


Yes, that's exactly right.

If a static method only refers to local variables, it is automatically thread safe. (In fact, this holds for non-static methods as well.)

Generally speaking though, I would say you should avoid static if possible. In general it makes code harder to test and to reason about due to the fact that static members are in a sense global.