The main idea to find the flag is java decompiling with above and over Ubuntu 18.04 LTS OS.
https://www.youtube.com/watch?v=no00Ec3YxXc
Finally, the flag becomes:
N0w_1_kn0w_wh0_jen1_1s!11JNI_IS_SO_COOL!
The main idea to find the flag is java decompiling with above and over Ubuntu 18.04 LTS OS.
https://www.youtube.com/watch?v=no00Ec3YxXc
Finally, the flag becomes:
N0w_1_kn0w_wh0_jen1_1s!11JNI_IS_SO_COOL!