Github user rakeshadr commented on a diff in the pull request:
https://github.com/apache/zookeeper/pull/156#discussion_r97716640
--- Diff: src/java/test/org/apache/zookeeper/server/NIOServerCnxnTest.java
---
@@ -68,4 +74,38 @@ public void testOperationsAfterCnxnClose() throws
IOException,
zk.close();
}
}
+
+ /**
+ * Mock extension of NIOServerCnxn to test for
+ * CancelledKeyException (ZOOKEEPER-2044).
+ */
+ class MockNIOServerCnxn extends NIOServerCnxn {
+ public MockNIOServerCnxn( NIOServerCnxn cnxn )
+ throws IOException {
+ super( cnxn.zkServer, cnxn.sock, cnxn.sk, cnxn.factory );
+ }
+
+ public void mockSendBuffer(ByteBuffer bb) throws Exception {
+ super.internalSendBuffer( bb );
+ }
+ }
+
+ @Test(timeout = 30000)
+ public void testValidSelectionKey() throws Exception {
+ final ZooKeeper zk = createClient();
+ try {
+ Iterable<ServerCnxn> connections =
serverFactory.getConnections();
+ for (ServerCnxn serverCnxn : connections) {
+ MockNIOServerCnxn mock = new
MockNIOServerCnxn((NIOServerCnxn) serverCnxn);
+ // Cancel key
+ ((NIOServerCnxn)
serverCnxn).sock.keyFor(((NIOServerCnxnFactory)
serverFactory).selector).cancel();;
+ mock.mockSendBuffer( ByteBuffer.allocate(8) );
+ }
+ } catch (CancelledKeyException e) {
+ e.printStackTrace();
--- End diff --
Instead of printStackTrace, can we use LOG.error("Exception while sending
bytes!", e);
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