Multiple javadriver threads
You can use multiple Java driver threads in one process by setting a USE_LOADER=true
directive in the pni file.
This cannot be used on the GUI side.
When the GUI saves NetConfig:
- If one Java driver is found in one process, then the
use_loader
key is removed. - If multiple Java drivers are found in one process, then the original value
of
use_loader
is retained, if there is any; otherwise,use_loader=true
is updated in the pni file.
A warning message then opens, stating that multiple javadriver threads are detected in one process.
The engine with the directive can have each thread load a class in its own
thread local urlclassloader
without interfering with each
other on the process level. However, you can create in your own code a classloader
that can be shared among threads. This results in classes that will
not be recycled after the CIS engine thread is down. In this case, you must carefully manage
the classloader
. In a similar manner, this can also happen in
the Spring context. This opens an additional warning message..