An error occurs when compiling the source code of RK embedded development board
problem:

Solution:

CD/etc/java-8-openjdk/security/to this directory; sudo vim java. Security (note that it needs to be opened and modified by the root user); Delete the “tlsv1, tlsv1.1” configurations and save to exit:
restart the jack server:

cd /prebuilts/sdk/tools/ 
./jack-admin kill-server 
./jack-admin start-server 

After recompiling the source code, the problem will no longer be reported