Solve Vivado XSDK comes UART Terminal Crash on Ubuntu system problems

Using certain versions of Vivado XSDK on Ubuntu 18.04 LTS system that comes with the Eclipse IDE Serial Terminal will have Crash problem. Xilinx's Terminal plug XSDK librxtx-java is used, the underlying access using librxtxSerial and librxtxParallel both open source libraries, but they will Crash on 64-bit Ubuntu system. The solution is to use Ubuntu software source version, not the version of Xilinx. In XSDK installation path, e.g. xilinx / SDK / 2015.2 / eclipse / lnx64.o / plugins / gnu.io.rxtx.linux.x86_64_2.1.7.3_v20071015 / os / linux / x86_64, and found librxtxSerial.so this librxtxParallel.so two files and rename .bak backup, respectively, to create a version of Ubuntu comes with sudo ln -s /usr/lib/jni/librxtxSerial-2.2pre1.so librxtxSerial.so, sudo ln -s / usr / lib / jni / librxtxParallel-2.2pre1.so librxtxParallel.so, Ubuntu version can sudo apt install librxtx-java installation.