UnrecognizedPropertyException while writing to Active-Objects table

Hello,

I developed a Jira plugin for 6.4.12 version and later upgraded it for 8.20.11 version, which our new Jira version. In the old version it works fine, but in the new version I get an error when writing to the active objects table. The table is not updating with the data I am sending.

	at com.sun.jersey.spi.container.AdaptingContainerRequest.getEntity(AdaptingContainerRequest.java:236)
	at com.sun.jersey.spi.container.ContainerRequest.getEntity(ContainerRequest.java:490)
	at org.codehaus.jackson.jaxrs.JacksonJsonProvider.readFrom(JacksonJsonProvider.java:419)
	at org.codehaus.jackson.map.ObjectMapper.readValue(ObjectMapper.java:1315)
	at org.codehaus.jackson.map.ObjectMapper._readValue(ObjectMapper.java:2704)
	at org.codehaus.jackson.map.deser.BeanDeserializer.deserialize(BeanDeserializer.java:580)
	at org.codehaus.jackson.map.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:703)
	at org.codehaus.jackson.map.deser.BeanDeserializer._handleUnknown(BeanDeserializer.java:725)
	at org.codehaus.jackson.map.deser.BeanDeserializer.handleUnknownProperty(BeanDeserializer.java:1365)
	at org.codehaus.jackson.map.deser.std.StdDeserializer.handleUnknownProperty(StdDeserializer.java:659)
	at org.codehaus.jackson.map.deser.std.StdDeserializer.reportUnknownProperty(StdDeserializer.java:673)
	at org.codehaus.jackson.map.deser.StdDeserializationContext.unknownFieldException(StdDeserializationContext.java:267)
	at org.codehaus.jackson.map.exc.UnrecognizedPropertyException.from(UnrecognizedPropertyException.java:53)
 at [Source: org.apache.catalina.connector.CoyoteInputStream@7595ffd9; line: 1, column: 35] (through reference chain: com.vestel.plugins.jira.rest.CommentModel["commentbody"])
org.codehaus.jackson.map.exc.UnrecognizedPropertyException: Unrecognized field "commentbody" (Class com.vestel.plugins.jira.rest.CommentModel), not marked as ignorable

Could you help us for this problem?