Fix performance bug in Java API get() functions when key is NotFound #3435

Job	Run time
check-format-and-targets	24s
build-linux	17m 10s
build-linux-cmake-mingw	12m 21s
build-linux-cmake-with-folly	28m 13s
build-linux-cmake-with-benchmark	19m 26s
build-linux-cmake-with-folly-coroutines	31m 50s
build-linux-encrypted_env-no_compression	15m 56s
build-linux-cmake-with-folly-lite-no-test	7m 54s
build-linux-make-with-folly	28m 20s
build-linux-make-with-folly-lite-no-test	9m 26s
build-linux-release	14m 8s
build-examples	11m 0s
build-linux-release-rtti	12m 14s
build-fuzzers	8m 52s
build-linux-clang10-asan	16m 48s
build-linux-clang10-clang-analyze	17m 3s
build-linux-clang10-mini-tsan	24m 17s
build-linux-clang10-ubsan	17m 2s
build-linux-clang-13-no_test_run	7m 18s
build-linux-clang-no_test_run	12m 5s
build-linux-gcc-10-cxx20-no_test_run	9m 24s
build-linux-gcc-11-no_test_run	10m 14s
build-linux-gcc-8-no_test_run	8m 40s
build-linux-mini-crashtest	29m 24s
build-linux-unity-and-headers	13m 30s
build-linux-arm	15m 24s
build-linux-java	15m 9s
build-linux-java-pmd	11m 53s
build-linux-java-static	11m 40s
build-linux-static_lib-alt_namespace-status_checked	19m 15s
build-macos	17m 45s
build-macos-cmake (true)	54m 35s
build-macos-java	22m 38s
build-macos-cmake (false)	52m 41s
build-macos-java-static	30m 5s
build-macos-java-static-universal	22m 15s
build-windows-vs2019	52m 23s
	11h 48m 42s

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