21:39:08,503 INFO  [org.wildfly.extension.undertow] (ServerService Thread Pool -- 76) WFLYUT0021: Registered web context: '/jberet-mdc-reproducer' for server 'default-server'
21:39:08,565 INFO  [org.jboss.as.server] (External Management Request Threads -- 1) WFLYSRV0010: Deployed "jberet-mdc-reproducer.war" (runtime-name : "jberet-mdc-reproducer.war")
21:39:16,071 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {cbk=jberet-mdc-reproducer}
21:39:16,122 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 1) readItem(); Thread: Batch Thread - 1; MDC: {cbk=jberet-mdc-reproducer}
21:39:16,122 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 1) readItem(); Thread: Batch Thread - 1; MDC: {cbk=jberet-mdc-reproducer}
21:39:16,122 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 1) readItem(); Thread: Batch Thread - 1; MDC: {cbk=jberet-mdc-reproducer}
21:39:16,122 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 1) writeItems([A, B, C]); Thread: Batch Thread - 1; MDC: {cbk=jberet-mdc-reproducer}
21:39:16,123 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 1) readItem(); Thread: Batch Thread - 1; MDC: {cbk=jberet-mdc-reproducer}
21:39:16,762 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {oed=jberet-mdc-reproducer}
21:39:16,766 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 2) readItem(); Thread: Batch Thread - 2; MDC: {oed=jberet-mdc-reproducer}
21:39:16,766 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 2) readItem(); Thread: Batch Thread - 2; MDC: {oed=jberet-mdc-reproducer}
21:39:16,766 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 2) readItem(); Thread: Batch Thread - 2; MDC: {oed=jberet-mdc-reproducer}
21:39:16,766 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 2) writeItems([A, B, C]); Thread: Batch Thread - 2; MDC: {oed=jberet-mdc-reproducer}
21:39:16,767 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 2) readItem(); Thread: Batch Thread - 2; MDC: {oed=jberet-mdc-reproducer}
21:39:17,391 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {mkr=jberet-mdc-reproducer}
21:39:17,393 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 3) readItem(); Thread: Batch Thread - 3; MDC: {mkr=jberet-mdc-reproducer}
21:39:17,394 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 3) readItem(); Thread: Batch Thread - 3; MDC: {mkr=jberet-mdc-reproducer}
21:39:17,394 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 3) readItem(); Thread: Batch Thread - 3; MDC: {mkr=jberet-mdc-reproducer}
21:39:17,394 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 3) writeItems([A, B, C]); Thread: Batch Thread - 3; MDC: {mkr=jberet-mdc-reproducer}
21:39:17,394 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 3) readItem(); Thread: Batch Thread - 3; MDC: {mkr=jberet-mdc-reproducer}
21:39:18,060 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {iev=jberet-mdc-reproducer}
21:39:18,063 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 4) readItem(); Thread: Batch Thread - 4; MDC: {iev=jberet-mdc-reproducer}
21:39:18,063 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 4) readItem(); Thread: Batch Thread - 4; MDC: {iev=jberet-mdc-reproducer}
21:39:18,064 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 4) readItem(); Thread: Batch Thread - 4; MDC: {iev=jberet-mdc-reproducer}
21:39:18,064 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 4) writeItems([A, B, C]); Thread: Batch Thread - 4; MDC: {iev=jberet-mdc-reproducer}
21:39:18,064 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 4) readItem(); Thread: Batch Thread - 4; MDC: {iev=jberet-mdc-reproducer}
21:39:18,704 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {npx=jberet-mdc-reproducer}
21:39:18,707 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 5) readItem(); Thread: Batch Thread - 5; MDC: {npx=jberet-mdc-reproducer}
21:39:18,707 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 5) readItem(); Thread: Batch Thread - 5; MDC: {npx=jberet-mdc-reproducer}
21:39:18,707 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 5) readItem(); Thread: Batch Thread - 5; MDC: {npx=jberet-mdc-reproducer}
21:39:18,707 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 5) writeItems([A, B, C]); Thread: Batch Thread - 5; MDC: {npx=jberet-mdc-reproducer}
21:39:18,708 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 5) readItem(); Thread: Batch Thread - 5; MDC: {npx=jberet-mdc-reproducer}
21:39:19,360 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {xad=jberet-mdc-reproducer}
21:39:19,362 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 6) readItem(); Thread: Batch Thread - 6; MDC: {xad=jberet-mdc-reproducer}
21:39:19,362 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 6) readItem(); Thread: Batch Thread - 6; MDC: {xad=jberet-mdc-reproducer}
21:39:19,362 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 6) readItem(); Thread: Batch Thread - 6; MDC: {xad=jberet-mdc-reproducer}
21:39:19,362 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 6) writeItems([A, B, C]); Thread: Batch Thread - 6; MDC: {xad=jberet-mdc-reproducer}
21:39:19,363 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 6) readItem(); Thread: Batch Thread - 6; MDC: {xad=jberet-mdc-reproducer}
21:39:20,034 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {bdj=jberet-mdc-reproducer}
21:39:20,037 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 7) readItem(); Thread: Batch Thread - 7; MDC: {bdj=jberet-mdc-reproducer}
21:39:20,038 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 7) readItem(); Thread: Batch Thread - 7; MDC: {bdj=jberet-mdc-reproducer}
21:39:20,038 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 7) readItem(); Thread: Batch Thread - 7; MDC: {bdj=jberet-mdc-reproducer}
21:39:20,038 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 7) writeItems([A, B, C]); Thread: Batch Thread - 7; MDC: {bdj=jberet-mdc-reproducer}
21:39:20,039 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 7) readItem(); Thread: Batch Thread - 7; MDC: {bdj=jberet-mdc-reproducer}
21:39:20,648 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {wqg=jberet-mdc-reproducer}
21:39:20,651 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 8) readItem(); Thread: Batch Thread - 8; MDC: {wqg=jberet-mdc-reproducer}
21:39:20,652 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 8) readItem(); Thread: Batch Thread - 8; MDC: {wqg=jberet-mdc-reproducer}
21:39:20,652 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 8) readItem(); Thread: Batch Thread - 8; MDC: {wqg=jberet-mdc-reproducer}
21:39:20,652 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 8) writeItems([A, B, C]); Thread: Batch Thread - 8; MDC: {wqg=jberet-mdc-reproducer}
21:39:20,652 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 8) readItem(); Thread: Batch Thread - 8; MDC: {wqg=jberet-mdc-reproducer}
21:39:21,273 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {uhp=jberet-mdc-reproducer}
21:39:21,275 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 9) readItem(); Thread: Batch Thread - 9; MDC: {uhp=jberet-mdc-reproducer}
21:39:21,276 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 9) readItem(); Thread: Batch Thread - 9; MDC: {uhp=jberet-mdc-reproducer}
21:39:21,276 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 9) readItem(); Thread: Batch Thread - 9; MDC: {uhp=jberet-mdc-reproducer}
21:39:21,276 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 9) writeItems([A, B, C]); Thread: Batch Thread - 9; MDC: {uhp=jberet-mdc-reproducer}
21:39:21,276 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 9) readItem(); Thread: Batch Thread - 9; MDC: {uhp=jberet-mdc-reproducer}
21:39:24,791 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {cjy=jberet-mdc-reproducer}
21:39:24,794 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 10) readItem(); Thread: Batch Thread - 10; MDC: {cjy=jberet-mdc-reproducer}
21:39:24,794 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 10) readItem(); Thread: Batch Thread - 10; MDC: {cjy=jberet-mdc-reproducer}
21:39:24,795 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 10) readItem(); Thread: Batch Thread - 10; MDC: {cjy=jberet-mdc-reproducer}
21:39:24,795 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 10) writeItems([A, B, C]); Thread: Batch Thread - 10; MDC: {cjy=jberet-mdc-reproducer}
21:39:24,795 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 10) readItem(); Thread: Batch Thread - 10; MDC: {cjy=jberet-mdc-reproducer}
21:39:34,287 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {nkq=jberet-mdc-reproducer}
21:39:34,289 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 1) readItem(); Thread: Batch Thread - 1; MDC: {cbk=jberet-mdc-reproducer}
21:39:34,289 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 1) readItem(); Thread: Batch Thread - 1; MDC: {cbk=jberet-mdc-reproducer}
21:39:34,289 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 1) readItem(); Thread: Batch Thread - 1; MDC: {cbk=jberet-mdc-reproducer}
21:39:34,289 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 1) writeItems([A, B, C]); Thread: Batch Thread - 1; MDC: {cbk=jberet-mdc-reproducer}
21:39:34,290 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 1) readItem(); Thread: Batch Thread - 1; MDC: {cbk=jberet-mdc-reproducer}
21:39:35,879 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {kbb=jberet-mdc-reproducer}
21:39:35,880 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 2) readItem(); Thread: Batch Thread - 2; MDC: {oed=jberet-mdc-reproducer}
21:39:35,881 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 2) readItem(); Thread: Batch Thread - 2; MDC: {oed=jberet-mdc-reproducer}
21:39:35,881 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 2) readItem(); Thread: Batch Thread - 2; MDC: {oed=jberet-mdc-reproducer}
21:39:35,881 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 2) writeItems([A, B, C]); Thread: Batch Thread - 2; MDC: {oed=jberet-mdc-reproducer}
21:39:35,881 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 2) readItem(); Thread: Batch Thread - 2; MDC: {oed=jberet-mdc-reproducer}
21:39:36,619 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {cet=jberet-mdc-reproducer}
21:39:36,621 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 3) readItem(); Thread: Batch Thread - 3; MDC: {mkr=jberet-mdc-reproducer}
21:39:36,621 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 3) readItem(); Thread: Batch Thread - 3; MDC: {mkr=jberet-mdc-reproducer}
21:39:36,621 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 3) readItem(); Thread: Batch Thread - 3; MDC: {mkr=jberet-mdc-reproducer}
21:39:36,622 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 3) writeItems([A, B, C]); Thread: Batch Thread - 3; MDC: {mkr=jberet-mdc-reproducer}
21:39:36,622 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 3) readItem(); Thread: Batch Thread - 3; MDC: {mkr=jberet-mdc-reproducer}
21:39:37,300 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {rni=jberet-mdc-reproducer}
21:39:37,302 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 4) readItem(); Thread: Batch Thread - 4; MDC: {iev=jberet-mdc-reproducer}
21:39:37,302 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 4) readItem(); Thread: Batch Thread - 4; MDC: {iev=jberet-mdc-reproducer}
21:39:37,302 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 4) readItem(); Thread: Batch Thread - 4; MDC: {iev=jberet-mdc-reproducer}
21:39:37,302 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 4) writeItems([A, B, C]); Thread: Batch Thread - 4; MDC: {iev=jberet-mdc-reproducer}
21:39:37,302 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 4) readItem(); Thread: Batch Thread - 4; MDC: {iev=jberet-mdc-reproducer}
21:39:37,929 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {luw=jberet-mdc-reproducer}
21:39:37,931 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 5) readItem(); Thread: Batch Thread - 5; MDC: {npx=jberet-mdc-reproducer}
21:39:37,931 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 5) readItem(); Thread: Batch Thread - 5; MDC: {npx=jberet-mdc-reproducer}
21:39:37,931 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 5) readItem(); Thread: Batch Thread - 5; MDC: {npx=jberet-mdc-reproducer}
21:39:37,931 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 5) writeItems([A, B, C]); Thread: Batch Thread - 5; MDC: {npx=jberet-mdc-reproducer}
21:39:37,932 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 5) readItem(); Thread: Batch Thread - 5; MDC: {npx=jberet-mdc-reproducer}
21:39:38,571 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {kow=jberet-mdc-reproducer}
21:39:38,574 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 6) readItem(); Thread: Batch Thread - 6; MDC: {xad=jberet-mdc-reproducer}
21:39:38,574 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 6) readItem(); Thread: Batch Thread - 6; MDC: {xad=jberet-mdc-reproducer}
21:39:38,574 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 6) readItem(); Thread: Batch Thread - 6; MDC: {xad=jberet-mdc-reproducer}
21:39:38,574 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 6) writeItems([A, B, C]); Thread: Batch Thread - 6; MDC: {xad=jberet-mdc-reproducer}
21:39:38,574 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 6) readItem(); Thread: Batch Thread - 6; MDC: {xad=jberet-mdc-reproducer}
21:39:39,165 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {sbj=jberet-mdc-reproducer}
21:39:39,167 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 7) readItem(); Thread: Batch Thread - 7; MDC: {bdj=jberet-mdc-reproducer}
21:39:39,168 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 7) readItem(); Thread: Batch Thread - 7; MDC: {bdj=jberet-mdc-reproducer}
21:39:39,168 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 7) readItem(); Thread: Batch Thread - 7; MDC: {bdj=jberet-mdc-reproducer}
21:39:39,168 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 7) writeItems([A, B, C]); Thread: Batch Thread - 7; MDC: {bdj=jberet-mdc-reproducer}
21:39:39,168 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 7) readItem(); Thread: Batch Thread - 7; MDC: {bdj=jberet-mdc-reproducer}
21:39:39,782 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {uil=jberet-mdc-reproducer}
21:39:39,784 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 8) readItem(); Thread: Batch Thread - 8; MDC: {wqg=jberet-mdc-reproducer}
21:39:39,784 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 8) readItem(); Thread: Batch Thread - 8; MDC: {wqg=jberet-mdc-reproducer}
21:39:39,784 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 8) readItem(); Thread: Batch Thread - 8; MDC: {wqg=jberet-mdc-reproducer}
21:39:39,785 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 8) writeItems([A, B, C]); Thread: Batch Thread - 8; MDC: {wqg=jberet-mdc-reproducer}
21:39:39,785 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 8) readItem(); Thread: Batch Thread - 8; MDC: {wqg=jberet-mdc-reproducer}
21:39:40,380 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {wjz=jberet-mdc-reproducer}
21:39:40,382 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 9) readItem(); Thread: Batch Thread - 9; MDC: {uhp=jberet-mdc-reproducer}
21:39:40,382 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 9) readItem(); Thread: Batch Thread - 9; MDC: {uhp=jberet-mdc-reproducer}
21:39:40,382 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 9) readItem(); Thread: Batch Thread - 9; MDC: {uhp=jberet-mdc-reproducer}
21:39:40,382 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 9) writeItems([A, B, C]); Thread: Batch Thread - 9; MDC: {uhp=jberet-mdc-reproducer}
21:39:40,382 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 9) readItem(); Thread: Batch Thread - 9; MDC: {uhp=jberet-mdc-reproducer}
21:39:40,930 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {kcy=jberet-mdc-reproducer}
21:39:40,932 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 10) readItem(); Thread: Batch Thread - 10; MDC: {cjy=jberet-mdc-reproducer}
21:39:40,932 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 10) readItem(); Thread: Batch Thread - 10; MDC: {cjy=jberet-mdc-reproducer}
21:39:40,932 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 10) readItem(); Thread: Batch Thread - 10; MDC: {cjy=jberet-mdc-reproducer}
21:39:40,932 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 10) writeItems([A, B, C]); Thread: Batch Thread - 10; MDC: {cjy=jberet-mdc-reproducer}
21:39:40,933 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 10) readItem(); Thread: Batch Thread - 10; MDC: {cjy=jberet-mdc-reproducer}
21:39:41,498 INFO  [org.jboss.gss.batch.Endpoint] (default task-1) Endpoint.start(); Thread: default task-1; MDC: {sfb=jberet-mdc-reproducer}
21:39:41,500 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 1) readItem(); Thread: Batch Thread - 1; MDC: {cbk=jberet-mdc-reproducer}
21:39:41,500 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 1) readItem(); Thread: Batch Thread - 1; MDC: {cbk=jberet-mdc-reproducer}
21:39:41,500 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 1) readItem(); Thread: Batch Thread - 1; MDC: {cbk=jberet-mdc-reproducer}
21:39:41,500 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 1) writeItems([A, B, C]); Thread: Batch Thread - 1; MDC: {cbk=jberet-mdc-reproducer}
21:39:41,501 INFO  [org.jboss.gss.batch.DummyReader] (Batch Thread - 1) readItem(); Thread: Batch Thread - 1; MDC: {cbk=jberet-mdc-reproducer}