<div dir="ltr">Hello there, <div><br></div><div>I'm trying to rewrite one of my job's web applications to use Scoped Values instead of ThreadLocal, but I've hit a minor inconvenience. Using the run method works great, but in the case where I want to return the result to my webserver, I'm forced to deal with the checked exception. I can't use throws because the endpoints are registered via lambda and so cannot throw any checked exceptions.</div><div><br></div><div>To me, the errors should ideally be handled by my registered error handler classes to return 500 errors, not for every endpoint to individually define error logic.</div><div><br></div><div>Is there a specific reason that call() throws the checked exception, but not run()?</div><div><br></div><div>What I currently do to avoid.</div><div><br></div><div>```</div><div>  @Get("/path")<br>  public Response getStuff(Context ctx) {<br>   // mdc is populated by the before filters<br>    final var context = MDC.getCopyOfContextMap();<br>    MDC.clear();<br><br>    try {</div><div>      <span style="background-color:transparent;font-family:inherit;font-style:inherit;font-variant:inherit;font-weight:inherit;white-space:inherit;margin:0px;padding:0px;border:0px;font-stretch:inherit;line-height:inherit;font-kerning:inherit;font-feature-settings:inherit;font-size:13px;vertical-align:baseline;box-sizing:inherit">final</span><span style="background-color:transparent;font-family:inherit;font-style:inherit;font-variant-ligatures:inherit;font-variant-caps:inherit;font-weight:inherit;white-space:inherit"> AtomicReference<</span>Response<span style="background-color:transparent;font-family:inherit;font-style:inherit;font-variant-ligatures:inherit;font-variant-caps:inherit;font-weight:inherit;white-space:inherit">> resultRef = </span><span style="background-color:transparent;font-family:inherit;font-style:inherit;font-variant:inherit;font-weight:inherit;white-space:inherit;margin:0px;padding:0px;border:0px;font-stretch:inherit;line-height:inherit;font-kerning:inherit;font-feature-settings:inherit;font-size:13px;vertical-align:baseline;box-sizing:inherit">new</span><span style="background-color:transparent;font-family:inherit;font-style:inherit;font-variant-ligatures:inherit;font-variant-caps:inherit;font-weight:inherit;white-space:inherit"> </span><span style="background-color:transparent;font-family:inherit;font-style:inherit;font-variant:inherit;font-weight:inherit;white-space:inherit;margin:0px;padding:0px;border:0px;font-stretch:inherit;line-height:inherit;font-kerning:inherit;font-feature-settings:inherit;font-size:13px;vertical-align:baseline;box-sizing:inherit">AtomicReference</span><span style="background-color:transparent;font-family:inherit;font-style:inherit;font-variant-ligatures:inherit;font-variant-caps:inherit;font-weight:inherit;white-space:inherit"><>();</span><br>      ScopedValue.where(SCOPE, context)<br>          .run(<br>              () -> {<br>                final var request =<br>                    new Request(ctx.queryParamMap(), ctx.headerMap(), ctx);</div><div><br>                validator.validate(request);</div><div><br>               // in the service layer a bunch of virtual threads are made to orchestrate API calls with SC</div><div>               // I want to use Scope Values to share the context.<br>                 resultRef.set( service.getAggregateData(requests));<br>              });<br>      return resultRef.get();<br>    } finally {<br>      // this gets cleared in the response filter<br>      MDC.setContextMap(context);<br>    }<br>  }<br></div><div>```</div><div><br></div><div>What I'd like to do.</div><div><br>```</div><div>  @Get("/path")<br>  public Response getStuff(Context ctx) {<br>    final var context = MDC.getCopyOfContextMap();<br>    MDC.clear();</div><div><br>    try {</div><div><br>      return ScopedValue.where(SCOPE, context)<br>          .call(<br>              () -> {<br>                final var request =<br>                    new Request(ctx.queryParamMap(), ctx.headerMap(), ctx);</div><div><br>                validator.validate(request);</div><div>                return service.getAggregateData(requests);<br>              });<br><br>    } finally {<br>      MDC.setContextMap(context);<br>    }<br>  }<br></div><div>```</div><font color="#888888">--<br><div dir="ltr"><div dir="ltr">Cheers, Josiah.</div></div></font><input name="virtru-metadata" type="hidden" value="{"email-policy":{"disableCopyPaste":false,"disablePrint":false,"disableForwarding":false,"enableNoauth":false,"expandedWatermarking":false,"expires":false,"sms":false,"expirationNum":1,"expirationUnit":"days","isManaged":false,"persistentProtection":false},"attachments":{},"compose-id":"1","compose-window":{"secure":false}}"></div>