[ 
https://issues.apache.org/jira/browse/RANGER-4806?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Monika kachhadiya updated RANGER-4806:
--------------------------------------
    Description: 
With java 17 the audit spool exception is seen if solr is not reachable. 
 
{code:java}
 
 ERROR AuditFileSpool: Error writing to file. event=AuthzAuditEvent
com.google.gson.JsonIOException: Failed making field 
'java.nio.charset.Charset#name' accessible; either increase its visibility or 
write a custom TypeAdapter for its declaring type.
at 
com.google.gson.internal.reflect.ReflectionHelper.makeAccessible(ReflectionHelper.java:38)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:286)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
 ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
 ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
 ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
 ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
 ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
 ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
 ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.toJson(Gson.java:834) ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.toJson(Gson.java:812) ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.toJson(Gson.java:759) ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.toJson(Gson.java:736) ~[gson-2.10.1.jar:?]
at 
org.apache.ranger.audit.queue.AuditFileSpool.saveIndexFile(AuditFileSpool.java) 
~[ranger-plugins-audit-10.22.0.2.jar:10.22.0.2]
at 
org.apache.ranger.audit.queue.AuditFileSpool.getLogFileStream(AuditFileSpool.java)
 ~[ranger-plugins-audit-10.22.0.2.jar:10.22.0.2]
at org.apache.ranger.audit.queue.AuditFileSpool.stashLogs(AuditFileSpool.java) 
[ranger-plugins-audit-10.22.0.2.jar:10.22.0.2]
at org.apache.ranger.audit.queue.AuditFileSpool.stashLogs(AuditFileSpool.java) 
[ranger-plugins-audit-10.22.0.2.jar:10.22.0.2]
at 
org.apache.ranger.audit.queue.AuditBatchQueue.runLogAudit(AuditBatchQueue.java) 
[ranger-plugins-audit-10.22.0.2.jar:10.22.0.2]
at org.apache.ranger.audit.queue.AuditBatchQueue.run(AuditBatchQueue.java) 
[ranger-plugins-audit-10.22.0.2.jar:10.22.0.2]
at java.lang.Thread.run(Thread.java:840) [?:?]
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make field 
private final java.lang.String java.nio.charset.Charset.name accessible: module 
java.base does not "opens java.nio.charset" to unnamed module @48ae9b55
at 
java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:354)
 ~[?:?]
at 
java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)
 ~[?:?]
at java.lang.reflect.Field.checkCanSetAccessible(Field.java:178) ~[?:?]
at java.lang.reflect.Field.setAccessible(Field.java:172) ~[?:?]
at 
com.google.gson.internal.reflect.ReflectionHelper.makeAccessible(ReflectionHelper.java:35)
 ~[gson-2.10.1.jar:?] {code}
 
 
The root cause seems to be as mentioned here:
 
Similar to #1963 and other existing reports. Apparently you are deserializing a 
JDK class (java.security.KeyFactory) without having specified a custom type 
adapter for it. Gson will then by default use a reflection based type adapter. 
You have to write a custom type adapter to solve this issue.
 
The reason why this is causing an exception for JDK 17 is because JDK internals 
are now strongly encapsulated (see JEP 403).
In general you should avoid using reflection based serialization and 
deserialization for classes which you do not control because you rely on their 
implementation details which could change at any point. (Unfortunately Gson 
currently does not have a setting for easily blocking such undesired reflective 
access.)
 

  was:
In EMR.6.15 environment with java 17 the audit spool exception is seen if solr 
is not reachable. 
 
{code:java}
 
 ERROR AuditFileSpool: Error writing to file. event=AuthzAuditEvent
com.google.gson.JsonIOException: Failed making field 
'java.nio.charset.Charset#name' accessible; either increase its visibility or 
write a custom TypeAdapter for its declaring type.
at 
com.google.gson.internal.reflect.ReflectionHelper.makeAccessible(ReflectionHelper.java:38)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:286)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
 ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
 ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
 ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
 ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
 ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
 ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294)
 ~[gson-2.10.1.jar:?]
at 
com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
 ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.toJson(Gson.java:834) ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.toJson(Gson.java:812) ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.toJson(Gson.java:759) ~[gson-2.10.1.jar:?]
at com.google.gson.Gson.toJson(Gson.java:736) ~[gson-2.10.1.jar:?]
at 
org.apache.ranger.audit.queue.AuditFileSpool.saveIndexFile(AuditFileSpool.java) 
~[ranger-plugins-audit-10.22.0.2.jar:10.22.0.2]
at 
org.apache.ranger.audit.queue.AuditFileSpool.getLogFileStream(AuditFileSpool.java)
 ~[ranger-plugins-audit-10.22.0.2.jar:10.22.0.2]
at org.apache.ranger.audit.queue.AuditFileSpool.stashLogs(AuditFileSpool.java) 
[ranger-plugins-audit-10.22.0.2.jar:10.22.0.2]
at org.apache.ranger.audit.queue.AuditFileSpool.stashLogs(AuditFileSpool.java) 
[ranger-plugins-audit-10.22.0.2.jar:10.22.0.2]
at 
org.apache.ranger.audit.queue.AuditBatchQueue.runLogAudit(AuditBatchQueue.java) 
[ranger-plugins-audit-10.22.0.2.jar:10.22.0.2]
at org.apache.ranger.audit.queue.AuditBatchQueue.run(AuditBatchQueue.java) 
[ranger-plugins-audit-10.22.0.2.jar:10.22.0.2]
at java.lang.Thread.run(Thread.java:840) [?:?]
Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make field 
private final java.lang.String java.nio.charset.Charset.name accessible: module 
java.base does not "opens java.nio.charset" to unnamed module @48ae9b55
at 
java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:354)
 ~[?:?]
at 
java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)
 ~[?:?]
at java.lang.reflect.Field.checkCanSetAccessible(Field.java:178) ~[?:?]
at java.lang.reflect.Field.setAccessible(Field.java:172) ~[?:?]
at 
com.google.gson.internal.reflect.ReflectionHelper.makeAccessible(ReflectionHelper.java:35)
 ~[gson-2.10.1.jar:?] {code}
 
 
The root cause seems to be as mentioned here:
 
Similar to #1963 and other existing reports. Apparently you are deserializing a 
JDK class (java.security.KeyFactory) without having specified a custom type 
adapter for it. Gson will then by default use a reflection based type adapter. 
You have to write a custom type adapter to solve this issue.
 
The reason why this is causing an exception for JDK 17 is because JDK internals 
are now strongly encapsulated (see JEP 403).
In general you should avoid using reflection based serialization and 
deserialization for classes which you do not control because you rely on their 
implementation details which could change at any point. (Unfortunately Gson 
currently does not have a setting for easily blocking such undesired reflective 
access.)
 


>  With java 17 the audit spool exception is seen if solr is not reachable.
> -------------------------------------------------------------------------
>
>                 Key: RANGER-4806
>                 URL: https://issues.apache.org/jira/browse/RANGER-4806
>             Project: Ranger
>          Issue Type: Bug
>          Components: Ranger
>            Reporter: Monika kachhadiya
>            Assignee: Monika kachhadiya
>            Priority: Major
>
> With java 17 the audit spool exception is seen if solr is not reachable. 
>  
> {code:java}
>  
>  ERROR AuditFileSpool: Error writing to file. event=AuthzAuditEvent
> com.google.gson.JsonIOException: Failed making field 
> 'java.nio.charset.Charset#name' accessible; either increase its visibility or 
> write a custom TypeAdapter for its declaring type.
> at 
> com.google.gson.internal.reflect.ReflectionHelper.makeAccessible(ReflectionHelper.java:38)
>  ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:286)
>  ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
>  ~[gson-2.10.1.jar:?]
> at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160)
>  ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294)
>  ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
>  ~[gson-2.10.1.jar:?]
> at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160)
>  ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294)
>  ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
>  ~[gson-2.10.1.jar:?]
> at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160)
>  ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294)
>  ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
>  ~[gson-2.10.1.jar:?]
> at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160)
>  ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294)
>  ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
>  ~[gson-2.10.1.jar:?]
> at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160)
>  ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294)
>  ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
>  ~[gson-2.10.1.jar:?]
> at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(ReflectiveTypeAdapterFactory.java:160)
>  ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(ReflectiveTypeAdapterFactory.java:294)
>  ~[gson-2.10.1.jar:?]
> at 
> com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(ReflectiveTypeAdapterFactory.java:130)
>  ~[gson-2.10.1.jar:?]
> at com.google.gson.Gson.getAdapter(Gson.java:556) ~[gson-2.10.1.jar:?]
> at com.google.gson.Gson.toJson(Gson.java:834) ~[gson-2.10.1.jar:?]
> at com.google.gson.Gson.toJson(Gson.java:812) ~[gson-2.10.1.jar:?]
> at com.google.gson.Gson.toJson(Gson.java:759) ~[gson-2.10.1.jar:?]
> at com.google.gson.Gson.toJson(Gson.java:736) ~[gson-2.10.1.jar:?]
> at 
> org.apache.ranger.audit.queue.AuditFileSpool.saveIndexFile(AuditFileSpool.java)
>  ~[ranger-plugins-audit-10.22.0.2.jar:10.22.0.2]
> at 
> org.apache.ranger.audit.queue.AuditFileSpool.getLogFileStream(AuditFileSpool.java)
>  ~[ranger-plugins-audit-10.22.0.2.jar:10.22.0.2]
> at 
> org.apache.ranger.audit.queue.AuditFileSpool.stashLogs(AuditFileSpool.java) 
> [ranger-plugins-audit-10.22.0.2.jar:10.22.0.2]
> at 
> org.apache.ranger.audit.queue.AuditFileSpool.stashLogs(AuditFileSpool.java) 
> [ranger-plugins-audit-10.22.0.2.jar:10.22.0.2]
> at 
> org.apache.ranger.audit.queue.AuditBatchQueue.runLogAudit(AuditBatchQueue.java)
>  [ranger-plugins-audit-10.22.0.2.jar:10.22.0.2]
> at org.apache.ranger.audit.queue.AuditBatchQueue.run(AuditBatchQueue.java) 
> [ranger-plugins-audit-10.22.0.2.jar:10.22.0.2]
> at java.lang.Thread.run(Thread.java:840) [?:?]
> Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make 
> field private final java.lang.String java.nio.charset.Charset.name 
> accessible: module java.base does not "opens java.nio.charset" to unnamed 
> module @48ae9b55
> at 
> java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:354)
>  ~[?:?]
> at 
> java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)
>  ~[?:?]
> at java.lang.reflect.Field.checkCanSetAccessible(Field.java:178) ~[?:?]
> at java.lang.reflect.Field.setAccessible(Field.java:172) ~[?:?]
> at 
> com.google.gson.internal.reflect.ReflectionHelper.makeAccessible(ReflectionHelper.java:35)
>  ~[gson-2.10.1.jar:?] {code}
>  
>  
> The root cause seems to be as mentioned here:
>  
> Similar to #1963 and other existing reports. Apparently you are deserializing 
> a JDK class (java.security.KeyFactory) without having specified a custom type 
> adapter for it. Gson will then by default use a reflection based type 
> adapter. You have to write a custom type adapter to solve this issue.
>  
> The reason why this is causing an exception for JDK 17 is because JDK 
> internals are now strongly encapsulated (see JEP 403).
> In general you should avoid using reflection based serialization and 
> deserialization for classes which you do not control because you rely on 
> their implementation details which could change at any point. (Unfortunately 
> Gson currently does not have a setting for easily blocking such undesired 
> reflective access.)
>  



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