Mario Kevo created GEODE-6716:
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Summary: Multiple ClassLoaders created for a single deployed jar
Key: GEODE-6716
URL: https://issues.apache.org/jira/browse/GEODE-6716
Project: Geode
Issue Type: Bug
Components: functions
Reporter: Mario Kevo
{color:#333333}When deploying the jar if all jar Classes are not loaded before
a new deploy operation is issued Classes that were not loaded, when loaded,
will use a different ClassLoader object. Therefore, all objects created by
Classes with new ClassLoader will be incompatible with objects created by
Classes with an old ClassLoader.{color}
Fault is with JarDeployer Geode Class, deploy function, in which even if the
deployed jar is the same a new ClassLoader object will be created and replace
the old one.
To reproduce the issue deploy some jar with an object declaration and a
function that manages those objects. Then insert a few objects and deploy the
same jar again without executing the function. Now when executing the function,
function Class and its objects are created with a new ClassLoader and not
castable to the object Class which uses the old ClassLoader.
Expected error:
{code:java}
org.apache.geode.cache.execute.FunctionException: java.lang.ClassCastException:
class {class.name} cannot be cast to class {class.name} ({class.name} is in
unnamed module of loader java.net.URLClassLoader @5a57081e; {class.name} is in
unnamed module of loader java.net.URLClassLoader @7efe7b87){code}
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