Fix NullPointerException in OpenAddressingMap.remove()#113
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The remove() method accessed wrapper.key without null-checking the wrapper first, causing a NullPointerException when removing a key that doesn't exist in the map. The get() method already correctly uses valid(wrapper) before accessing wrapper.key. Apply the same guard in remove() for consistency and correctness. https://claude.ai/code/session_01TmQDBbsaz1C3kzhfDBauXB
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The remove() method accessed wrapper.key without null-checking the
wrapper first, causing a NullPointerException when removing a key
that doesn't exist in the map. The get() method already correctly
uses valid(wrapper) before accessing wrapper.key. Apply the same
guard in remove() for consistency and correctness.
https://claude.ai/code/session_01TmQDBbsaz1C3kzhfDBauXB