Error on Ignite.close(): class java.io.ObjectInputStream$Caches$1 cannot be cast to class java.util.Map

[Rafael Troilo]

Hi,

in case it wasn't reported before.

On Ignite.close we got an Error:


```
SEVERE: Failed to stop component (ignoring): GridManagerAdapter [enabled=true, 
name=o.a.i.i.managers.deployment.GridDeploymentManager]
java.lang.ClassCastException:    (java.io.ObjectInputStream$Caches$1 and 
java.util.Map are in module java.base of loader 'bootstrap')
        at 
org.apache.ignite.internal.managers.deployment.GridDeploymentStoreAdapter.clearSerializationCache(GridDeploymentStoreAdapter.java:151)
        at 
org.apache.ignite.internal.managers.deployment.GridDeploymentStoreAdapter.clearSerializationCaches(GridDeploymentStoreAdapter.java:120)
        at 
org.apache.ignite.internal.managers.deployment.GridDeploymentLocalStore.undeploy(GridDeploymentLocalStore.java:565)
        at 
org.apache.ignite.internal.managers.deployment.GridDeploymentLocalStore.stop(GridDeploymentLocalStore.java:101)
        at 
org.apache.ignite.internal.managers.deployment.GridDeploymentManager.storesStop(GridDeploymentManager.java:630)
        at 
org.apache.ignite.internal.managers.deployment.GridDeploymentManager.stop(GridDeploymentManager.java:137)
        at org.apache.ignite.internal.IgniteKernal.stop0(IgniteKernal.java:1928)
        at org.apache.ignite.internal.IgniteKernal.stop(IgniteKernal.java:1806)
        at 
org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance.stop0(IgnitionEx.java:2382)
        at 
org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance.stop(IgnitionEx.java:2205)
        at org.apache.ignite.internal.IgnitionEx.stop(IgnitionEx.java:350)
        at org.apache.ignite.Ignition.stop(Ignition.java:230)
        at org.apache.ignite.internal.IgniteKernal.close(IgniteKernal.java:2776)
```

ver. 2.13.0#20220420-sha1:551f6ece
OS: Linux 4.15.0-189-generic amd64
VM information: OpenJDK Runtime Environment 11.0.16+8-post-Ubuntu-0ubuntu118.04 
Ubuntu OpenJDK 64-Bit Server VM 11.0.16+8-post-Ubuntu-0ubuntu118.04

The reason for this Exception is an access to an field of 
ObjectOutputStream$Caches.subclassAudits which used to be of type java.util.Map 
but it changed to type java.lang.ClassValue!

```
org.apache.ignite.internal.managers.deployment.GridDeploymentStoreAdapter::clearSerializationCaches

  clearSerializationCache(Class.forName("java.io.ObjectInputStream$Caches"), 
"subclassAudits");
  clearSerializationCache(Class.forName("java.io.ObjectOutputStream$Caches"), 
"subclassAudits");
  clearSerializationCache(Class.forName("java.io.ObjectStreamClass$Caches"), 
"localDescs");
  clearSerializationCache(Class.forName("java.io.ObjectStreamClass$Caches"), 
"reflectors");
```

Is it safe to ignore this Exception? Any workarounds?

Thank you,
Best,
Rafael



--
Rafael Troilo
HeiGIT gGmbH
Heidelberg Institute for Geoinformation Technology at Heidelberg University

https://heigit.org | rafael.tro...@heigit.org | phone +49-6221-533 484

Postal address: Schloss-Wolfsbrunnenweg 33 | 69118 Heidelberg | Germany
Offices: Berliner Str. 45 | 69120 Heidelberg | Germany

Amtsgericht Mannheim | HRB 733765
Managing Directors: Prof. Dr. Alexander Zipf | Dr. Gesa Schönberger