4.0.0 excalibur-thread excalibur-thread-instrumented Excalibur Thread Instrumented Implementation 2.1 2001 avalon-framework avalon-framework-api 4.3 avalon-framework avalon-framework-impl 4.3 excalibur-thread excalibur-thread-api 2.1 excalibur-thread excalibur-thread-impl 2.1 excalibur-pool excalibur-pool-api 2.1 excalibur-pool excalibur-pool-impl 2.1 excalibur-pool excalibur-pool-instrumented 2.1 commons-collections commons-collections 3.1 concurrent concurrent 1.3.4 excalibur-instrument excalibur-instrument-api 2.1