[CXF-8581] Exceptions caught during JSON serialisation aren't handled correctly

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 3.4.4
• Component/s: JAX-RS

Environment

OpenJDK 11

Windows 10 x64

Apache CXF 3.4.4

• Estimated Complexity: Moderate

Language

Java

• Assignee: Unassigned
• Reporter: Marcel Schramm
• Created: 11/Aug/21 09:24
• Updated: 09/Sep/21 15:24
• Resolved: 09/Sep/21 15:24

Description

When trying to serialize an object that contains unserializable data, cxf runs into an exception.

An error log message is printed by `JAXRSUtils.logMessageHandlerProblem`. However, the message contains no stack trace. On top of that the invoking client receives a `200 OK` HTTP status code and partially written JSON, followed by an error message.

 

What I'd have expected instead, is to use the registered `ExceptionMapper`, which would turn this into an `500 Internal Server Error`. On top of that, it should print the stacktrace, as it's pretty hard to know what's going on otherwise.

 

In our specific case, we had an object that contains a `java.awt.Font` object.