org.openrewrite.staticanalysis.UnnecessaryThrows failing to detect thrown exception that is thrown in the method

[blipper]

What version of OpenRewrite are you using?

I am using

6.6.3

What is the smallest, simplest way to reproduce the problem?

import lombok.Getter;

public class PuntException extends Exception
{
    @Getter
    private final String puntReason;
    @Getter
    private final String source;

    public PuntException(String message, String puntReason)
    {
        this(message, puntReason, null);
    }

    public PuntException(String message, String puntReason, String source) {
        super(message);
        this.puntReason = puntReason;
        this.source = source;
    }
}

   import com.amazon.javelinrenderingservice.exception.PuntException;

    @WithSpan
    public AAXXSPGetAdResponse getAAXResponse(
        RenderPlacementRequest renderPlacementRequest,
        CacheData cacheData,
        AdWorkflowDebugTracer adWorkflowDebugTracer,
        Metrics metrics,
        ServiceLogEntry.ServiceLogEntryBuilder serviceLogEntryBuilder) throws AAXResponseException, PuntException {

        if (cacheData.getPlacementInfo().getPlacement().getConfig().getEnableNoCreativePunting()
                && StringUtils.isEmpty(aaxxspGetAdResponse.getCreative())) {
            throw new PuntException(
                    String.format("Request was punted because of empty exchange creative for requestId: '%s'",
                            renderPlacementRequest.getRequestId()), PuntReason.NO_EXCHANGE_CREATIVE.name(), "JRS");
        }

        return aaxxspGetAdResponse;
    }

What did you expect to see?

throws AAXResponseException, PuntException 

What did you see instead?

throws AAXResponseException

What is the full stack trace of any errors you encountered?

/workplace/mnr/InsistorRedux/src/JavelinRenderingService/src/com/amazon/javelinrenderingservice/client/aax/AAXClientAdaptor.java:71: error: unreported exception PuntException; must be caught or declared to be thrown
            throw new PuntException(

Are you interested in [contributing a fix to OpenRewrite]

Yes

[timtebeek]

That's odd that we're not picking this up; and thanks for offering to help! Feel free to chime into our Slack as well if you'd like help with setting up your tests and IDE to explore a fix.