I am facing the same issue in a different setting:
I have a webapplication that calls the local flink execution.
Unfortunately the change in the bootloader chain introduces the described
problem

Boot classloader
App class-loader
webapp classloader (knows the flink-classes)

it seems that the InstantiationUtil from flink replaces the current context
class loader which knows about the flink classes with the blob-classloader
with does not have the webappclassloader as parent:

Boot classloader
App classloader
Flink's Blob classloader

This is obviously the same problem that also appears when running the local
flink election from within an eclipse plugin.

Could you help me here? What should I do to tell flink not to ignore the
webapp-classloader?

Best,
eric






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