-- verbose option outputs a significant amount of extra information to the screen. This is often useful should troubleshooting be needed. Diffblue recommends running
-- verbose on a single class in order to obtain more detailed output.
2. Linux Error
If you see the following error message when running JCover:
jcover: error while loading shared libraries: libjvm.so: cannot open shared object file: No such file or directory
then your JVM may be in a non-standard directory. To work around this issue, set the
LD_LIBRARY_PATH environment variable to include the library’s location.
JDK 8 example:
$ export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/my_jdk_location/jre/lib/amd64/server
JDK 11 example:
$ export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/my_jdk_location/lib/server
3. Windows Errors
If your anti-virus software is configured to prevent unknown programs from running, they may be moved to a quarantine folder. When you try to run JCover (or any other unrecognized program) it may fail silently and be removed by the anti-virus software.
If this happens:
- Check your anti-virus software logs for messages relating to JCover.
- Ensure that JCover is added to the list of trusted programs.
4. macOS Errors
4.1 Unregistered apps
Opening an app which isn’t registered with Apple may lead to a warning. This can usually be resolved by following Apple’s advice on one of these support pages:
4.2 Timeout error
If you see the following error message when trying to run JCover:
execvp gtimeout failed: No such file or directory
then you need to install the
coreutils package (which includes
gtimeout), using either