Documentation on the usage of Joern and Joern server may be found on the Joern microsite.
Pre-built instances of the Joern command-line tools may be found here.
It is recommended you install the prebuilt Joern tooling by running the install script.
To run the Joern tools, you must have version 8 or above of the Java Runtime Environment installed.
Joern 1.1.1 introduced a major rearchitecture of the cpg query language (CPGQL) - please make sure to read upgrade guide