KB-1058 SerializationException in application server log

sadie.sands — Wed, 26 Mar 2025 17:27:00 GMT

Current Revision posted to Appian Knowledge Base by sadie.sands on 3/26/2025 5:27:00 PM

Symptoms

When accessing Tempo, the following pink box error is returned:

A server error was encountered while processing your request. Please try again.

The application server log contains the following errors:

ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/suite]] (ajp-/0.0.0.0:8009-1) 
Exception while dispatching incoming RPC call: com.google.gwt.user.client.rpc.SerializationException: 
Type '[Lcom.appiancorp.suiteapi.type.Datatype;' was not assignable to 'com.google.gwt.user.client.rpc.IsSerializable' and did not have a custom field serializer.
For security purposes, this type will not be serialized.: instance = [Lcom.appiancorp.suiteapi.type.Datatype;@1f5a7cbd
    at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize(ServerSerializationStreamWriter.java:667) [gwt-servlet-2.7.0.jar:]
    at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject(AbstractSerializationStreamWriter.java:130) [gwt-servlet-2.7.0.jar:]
    ...
    at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:420) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:926) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]
    at java.lang.Thread.run(Unknown Source) [rt.jar:1.8.0_51]

INFO  [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/suite]] (ajp-/0.0.0.0:8009-7) tempoSvcServlet: ERROR: The serialization policy file '/tempo/BB8E60244F72839F9C31728D856B5C74.gwt.rpc' was not found; did you forget to include it in this deployment?
INFO  [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/suite]] (ajp-/0.0.0.0:8009-7) tempoSvcServlet: WARNING: Failed to get the SerializationPolicy 'BB8E60244F72839F9C31728D856B5C74'; a legacy, 1.3.3 compatible, serialization policy will be used.  You may experience SerializationExceptions as a result.

Cause

The web server is not serving the correct static content.

Action

To correct the issue, perform the following:

Navigate to <APACHE_HOME>/www/suite/.
Navigate to <APPIAN_HOME>/deployment/web.war/.
Compare the two directories using a difference checker. Alternatively, ensure that the size of the folder contents from Step 1 and 2 are the same.
If they are not the same, copy over the contents from <APPIAN_HOME>/deployment/web.war/ to <APACHE_HOME>/www/suite/.
Note: The files from these two directories must NOT be merged. Fully replace the pre-existing contents of <APACHE_HOME>/www/suite/ when performing Step 4.

Affected Versions

This article applies to all versions of Appian using a web server.

Last Reviewed: March 2025

Tags: administration, user interface, upgrade

KB-1058 SerializationException in application server log

Ryan Good — Tue, 26 Mar 2024 14:25:45 GMT

Revision 4 posted to Appian Knowledge Base by Ryan Good on 3/26/2024 2:25:45 PM

Symptoms

When accessing Tempo, the following pink box error is returned:

A server error was encountered while processing your request. Please try again.

The application server log contains the following errors:

ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/suite]] (ajp-/0.0.0.0:8009-1) 
Exception while dispatching incoming RPC call: com.google.gwt.user.client.rpc.SerializationException: 
Type '[Lcom.appiancorp.suiteapi.type.Datatype;' was not assignable to 'com.google.gwt.user.client.rpc.IsSerializable' and did not have a custom field serializer.
For security purposes, this type will not be serialized.: instance = [Lcom.appiancorp.suiteapi.type.Datatype;@1f5a7cbd
    at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize(ServerSerializationStreamWriter.java:667) [gwt-servlet-2.7.0.jar:]
    at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject(AbstractSerializationStreamWriter.java:130) [gwt-servlet-2.7.0.jar:]
    ...
    at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:420) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:926) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]
    at java.lang.Thread.run(Unknown Source) [rt.jar:1.8.0_51]

INFO  [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/suite]] (ajp-/0.0.0.0:8009-7) tempoSvcServlet: ERROR: The serialization policy file '/tempo/BB8E60244F72839F9C31728D856B5C74.gwt.rpc' was not found; did you forget to include it in this deployment?
INFO  [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/suite]] (ajp-/0.0.0.0:8009-7) tempoSvcServlet: WARNING: Failed to get the SerializationPolicy 'BB8E60244F72839F9C31728D856B5C74'; a legacy, 1.3.3 compatible, serialization policy will be used.  You may experience SerializationExceptions as a result.

Cause

The web server is not serving the correct static content.

Action

To correct the issue, perform the following:

Navigate to <APACHE_HOME>/suite/.
Navigate to <APPIAN_HOME>/deployment/web.war/.
Compare the two directories using a difference checker. Alternatively, ensure that the size of the folder contents from Step 1 and 2 are the same.
If they are not the same, copy over the contents from <APPIAN_HOME>/deployment/web.war/ to <APACHE_HOME>/suite/.
Note: The files from these two directories must NOT be merged. Fully replace the pre-existing contents of <APACHE_HOME>/suite/ when performing Step 4.

Affected Versions

This article applies to all versions of Appian using a web server.

Last Reviewed: March 2024

Tags: administration, user interface, upgrade

KB-1058 SerializationException in application server log

Ryan Good — Tue, 19 Mar 2024 20:04:05 GMT

Revision 3 posted to Appian Knowledge Base by Ryan Good on 3/19/2024 8:04:05 PM

Symptoms

When accessing Tempo, the following pink box error is returned:

A server error was encountered while processing your request. Please try again.

The application server log contains the following errors:

ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/suite]] (ajp-/0.0.0.0:8009-1) 
Exception while dispatching incoming RPC call: com.google.gwt.user.client.rpc.SerializationException: 
Type '[Lcom.appiancorp.suiteapi.type.Datatype;' was not assignable to 'com.google.gwt.user.client.rpc.IsSerializable' and did not have a custom field serializer.
For security purposes, this type will not be serialized.: instance = [Lcom.appiancorp.suiteapi.type.Datatype;@1f5a7cbd
    at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize(ServerSerializationStreamWriter.java:667) [gwt-servlet-2.7.0.jar:]
    at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject(AbstractSerializationStreamWriter.java:130) [gwt-servlet-2.7.0.jar:]
    ...
    at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:420) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:926) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]
    at java.lang.Thread.run(Unknown Source) [rt.jar:1.8.0_51]

INFO  [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/suite]] (ajp-/0.0.0.0:8009-7) tempoSvcServlet: ERROR: The serialization policy file '/tempo/BB8E60244F72839F9C31728D856B5C74.gwt.rpc' was not found; did you forget to include it in this deployment?
INFO  [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/suite]] (ajp-/0.0.0.0:8009-7) tempoSvcServlet: WARNING: Failed to get the SerializationPolicy 'BB8E60244F72839F9C31728D856B5C74'; a legacy, 1.3.3 compatible, serialization policy will be used.  You may experience SerializationExceptions as a result.

Cause

The web server is not serving the correct static content.

Action

To correct the issue, perform the following:

Navigate to <APACHE_HOME>/suite/.
Navigate to <APPIAN_HOME>/deployment/web.war/.
Compare the two directories using a difference checker. Alternatively, ensure that the size of the folder contents from Step 1 and 2 are the same.
If they are not the same, copy over the contents from <APPIAN_HOME>/deployment/web.war/ to <APACHE_HOME>/suite/.
Note: The files from these two directories must NOT be merged. Fully replace the pre-existing contents of <APACHE_HOME>/suite/ when performing Step 3.

Affected Versions

This article applies to all versions of Appian using a web server.

Last Reviewed: March 2024

Tags: administration, user interface, upgrade

KB-1058 SerializationException in application server log

James Lee — Mon, 25 May 2020 17:53:41 GMT

Revision 2 posted to Appian Knowledge Base by James Lee on 5/25/2020 5:53:41 PM

Symptoms

When accessing Tempo, the following pink box error is returned:

A server error was encountered while processing your request. Please try again.

The application server log contains the following errors:

ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/suite]] (ajp-/0.0.0.0:8009-1) 
Exception while dispatching incoming RPC call: com.google.gwt.user.client.rpc.SerializationException: 
Type '[Lcom.appiancorp.suiteapi.type.Datatype;' was not assignable to 'com.google.gwt.user.client.rpc.IsSerializable' and did not have a custom field serializer.
For security purposes, this type will not be serialized.: instance = [Lcom.appiancorp.suiteapi.type.Datatype;@1f5a7cbd
    at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize(ServerSerializationStreamWriter.java:667) [gwt-servlet-2.7.0.jar:]
    at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject(AbstractSerializationStreamWriter.java:130) [gwt-servlet-2.7.0.jar:]
    ...
    at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:420) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:926) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]
    at java.lang.Thread.run(Unknown Source) [rt.jar:1.8.0_51]

INFO  [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/suite]] (ajp-/0.0.0.0:8009-7) tempoSvcServlet: ERROR: The serialization policy file '/tempo/BB8E60244F72839F9C31728D856B5C74.gwt.rpc' was not found; did you forget to include it in this deployment?
INFO  [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/suite]] (ajp-/0.0.0.0:8009-7) tempoSvcServlet: WARNING: Failed to get the SerializationPolicy 'BB8E60244F72839F9C31728D856B5C74'; a legacy, 1.3.3 compatible, serialization policy will be used.  You may experience SerializationExceptions as a result.

Cause

The web server is not servicing the correct static content.

Action

To correct the issue, perform the following:

Navigate to <WEB_SERVER_HOME>/suite/.
Navigate to <APPIAN_HOME>/ear/suite.ear/web.war.
Compare the two directories using a difference checker. Alternatively, ensure that the size of the folder contents of Step 1 and 2 are the same. If they are not the same, copy over the contents from <APPIAN_HOME>/ear/suite.ear/web.war to <WEB_SERVER>/suite/.

Affected Versions

This article applies to all versions of Appian using a web server.

Last Reviewed: May 2020

Tags: administration, user interface, upgrade

KB-1058 SerializationException in application server log

Nick Vigilante — Tue, 14 Feb 2017 19:26:20 GMT

Revision 1 posted to Appian Knowledge Base by Nick Vigilante on 2/14/2017 7:26:20 PM

Symptoms

When accessing Tempo, the following pink box error is returned:

A server error was encountered while processing your request. Please try again.

The application server log contains the following error:

ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/suite]] (ajp-/0.0.0.0:8009-1) 
Exception while dispatching incoming RPC call: com.google.gwt.user.client.rpc.SerializationException: 
Type '[Lcom.appiancorp.suiteapi.type.Datatype;' was not assignable to 'com.google.gwt.user.client.rpc.IsSerializable' and did not have a custom field serializer.
For security purposes, this type will not be serialized.: instance = [Lcom.appiancorp.suiteapi.type.Datatype;@1f5a7cbd
    at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize(ServerSerializationStreamWriter.java:667) [gwt-servlet-2.7.0.jar:]
    at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject(AbstractSerializationStreamWriter.java:130) [gwt-servlet-2.7.0.jar:]
    ...
    at org.apache.coyote.ajp.AjpProtocol$AjpConnectionHandler.process(AjpProtocol.java:420) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:926) [jbossweb-7.5.7.Final-redhat-1.jar:7.5.7.Final-redhat-1]
    at java.lang.Thread.run(Unknown Source) [rt.jar:1.8.0_51]

Cause

The web server is not servicing the correct static content.

Action

To correct the issue, perform the following:

Navigate to <WEB_SERVER_HOME>/suite/.
Navigate to <APPIAN_HOME>/ear/suite.ear/web.war.
Compare the two directories using a difference checker. Alternatively, ensure that the size of the folder contents of Step 1 and 2 are the same. If they are not the same, copy over the contents from <APPIAN_HOME>/ear/suite.ear/web.war to <WEB_SERVER>/suite/.

Affected Versions

This article applies to all versions of Appian using a web server.

Last Reviewed: February 2017

Tags: administration, user interface, upgrade