[CAMEL-20156] openapi-java: REST DSL param arrayType with allowableValues can lead to NoSuchMethodException

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.21.2, 4.0.2, 4.2.0
• Fix Version/s: 4.3.0
• Component/s: camel-openapi-java
• Estimated Complexity: Unknown
• Assignee: Zheng Feng
• Reporter: James Netherton
• Created: 27/Nov/23 09:06
• Updated: 30/Nov/23 11:16
• Resolved: 30/Nov/23 11:16

Description

There is some logic in the openapi-java component to handle different array types:

https://github.com/apache/camel/blob/main/components/camel-openapi-java/src/main/java/org/apache/camel/openapi/RestOpenApiReader.java#L498-L534

If you provide a set of allowable values, then you end up in method convertAndSetItemsEnum:

https://github.com/apache/camel/blob/main/components/camel-openapi-java/src/main/java/org/apache/camel/openapi/RestOpenApiReader.java#L705

The problem is that the code attempts to invoke static method valueOf. This will only be present for types that are standard JDK types (Integer, Float, Double etc). For types like ByteArraySchema, BinarySchema etc, no such method exists hence Camel startup will fail with NoSuchMethodException.

Issue Links

• links to: GitHub Pull Request #12269