[jira] [Created] (CAMEL-10874) JettyHttpComponent sets selector threads to 0 when running on 1 CPU

["Nick Houghton (JIRA)" <ji...@apache.org>]

Nick Houghton created CAMEL-10874:
-------------------------------------

             Summary: JettyHttpComponent sets selector threads to 0 when running on 1 CPU
                 Key: CAMEL-10874
                 URL: https://issues.apache.org/jira/browse/CAMEL-10874
             Project: Camel
          Issue Type: Bug
          Components: camel-jetty
    Affects Versions: 2.18.2, 2.17.5, 2.16.5
            Reporter: Nick Houghton


In JettyHttpComponent, "createHttpClientTransport" method the number of selectors is derived by:
{noformat}
int selectors = Runtime.getRuntime().availableProcessors() / 2;
{noformat}
If the number of available processors is 1, divided by 2, cast to int is 0 which causes an IllegalArgumentException.

The safe way to do this is via Math.max, like the Jetty code does:

{noformat}
int selector = Math.max(1, Runtime.getRuntime().availableProcessors() / 2);
{noformat}

As per the code this is only exercised when maxThreads is not null, otherwise the default constructor is called and selectors are created properly.



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