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testTooManyServerChannels() — netty Function Reference

Architecture documentation for the testTooManyServerChannels() function in OioEventLoopTest.java from the netty codebase.

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Dependency Diagram

graph TD
  6b4900fc_9600_3087_715b_7b5fc25aa68f["testTooManyServerChannels()"]
  014786d9_6185_4241_3f9d_b335998e5758["OioEventLoopTest"]
  6b4900fc_9600_3087_715b_7b5fc25aa68f -->|defined in| 014786d9_6185_4241_3f9d_b335998e5758
  style 6b4900fc_9600_3087_715b_7b5fc25aa68f fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

transport/src/test/java/io/netty/channel/oio/OioEventLoopTest.java lines 40–66

    @Test
    public void testTooManyServerChannels() throws Exception {
        EventLoopGroup g = new OioEventLoopGroup(1);
        ServerBootstrap b = new ServerBootstrap();
        b.channel(OioServerSocketChannel.class);
        b.group(g);
        b.childHandler(new ChannelInboundHandlerAdapter());
        ChannelFuture f1 = b.bind(0);
        f1.sync();

        ChannelFuture f2 = b.bind(0);
        f2.await();

        assertInstanceOf(ChannelException.class, f2.cause());
        assertThat(f2.cause().getMessage().toLowerCase()).contains("too many channels");

        final CountDownLatch notified = new CountDownLatch(1);
        f2.addListener(new ChannelFutureListener() {
            @Override
            public void operationComplete(ChannelFuture future) throws Exception {
                notified.countDown();
            }
        });

        notified.await();
        g.shutdownGracefully();
    }

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Frequently Asked Questions

What does testTooManyServerChannels() do?
testTooManyServerChannels() is a function in the netty codebase, defined in transport/src/test/java/io/netty/channel/oio/OioEventLoopTest.java.
Where is testTooManyServerChannels() defined?
testTooManyServerChannels() is defined in transport/src/test/java/io/netty/channel/oio/OioEventLoopTest.java at line 40.

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