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from 3813bb9 [FLINK-12241][hive] Support Flink functions in catalog function APIs of HiveCatalog new 022f6cc [FLINK-12478, FLINK-12480][runtime] Introduce mailbox to StreamTask main-loop. new ead9139 [FLINK-12483][runtime] Support (legacy) SourceFunction as special case in the mailbox model for stream tasks. The 2 revisions listed above as "new" are entirely new to this repository and will be described in separate emails. The revisions listed as "add" were already present in the repository and have only been added to this reference. Summary of changes: .../runtime/tasks/OneInputStreamTask.java | 12 +- .../streaming/runtime/tasks/SourceStreamTask.java | 71 ++++++- .../runtime/tasks/StreamIterationHead.java | 105 ++++----- .../flink/streaming/runtime/tasks/StreamTask.java | 82 ++++++- .../runtime/tasks/TwoInputStreamTask.java | 13 +- .../streaming/runtime/tasks/mailbox/Mailbox.java | 23 +- .../runtime/tasks/mailbox/MailboxImpl.java | 236 +++++++++++++++++++++ .../runtime/tasks/mailbox/MailboxReceiver.java | 59 ++++++ .../runtime/tasks/mailbox/MailboxSender.java | 52 +++++ ...heckpointExceptionHandlerConfigurationTest.java | 4 +- .../tasks/StreamTaskCancellationBarrierTest.java | 4 +- .../runtime/tasks/StreamTaskTerminationTest.java | 3 +- .../streaming/runtime/tasks/StreamTaskTest.java | 21 +- .../runtime/tasks/SynchronousCheckpointITCase.java | 3 +- .../runtime/tasks/SynchronousCheckpointTest.java | 3 +- .../tasks/TaskCheckpointingBehaviourTest.java | 4 +- .../runtime/tasks/mailbox/MailboxImplTest.java | 170 +++++++++++++++ .../flink/streaming/util/MockStreamTask.java | 4 +- .../jobmaster/JobMasterStopWithSavepointIT.java | 10 +- 19 files changed, 762 insertions(+), 117 deletions(-) copy flink-runtime/src/main/java/org/apache/flink/runtime/state/metainfo/StateMetaInfoWriter.java => flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/mailbox/Mailbox.java (60%) create mode 100644 flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/mailbox/MailboxImpl.java create mode 100644 flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/mailbox/MailboxReceiver.java create mode 100644 flink-streaming-java/src/main/java/org/apache/flink/streaming/runtime/tasks/mailbox/MailboxSender.java create mode 100644 flink-streaming-java/src/test/java/org/apache/flink/streaming/runtime/tasks/mailbox/MailboxImplTest.java