Poller stops working after 1 cycle - spring-integration

Question

At the beginning of my flow I have a file inbound adapter which reads a directory periodically:
<int-file:inbound-channel-adapter id="filteredFiles"
directory="${controller.cycle.lists.input.dir}"
channel="semaphoreChannel" filename-pattern="*.xml">
<int:poller fixed-delay="3000"/>**
</int-file:inbound-channel-adapter>
When the SI workflow ends it never happens again. It seems the poller is dead and stops working.
There aren't any error messages in the log nor any warnings.
Channel configuration:
<int:channel id="semaphoreChannel" datatype="java.io.File"/>
Second configuration:
<int-file:inbound-channel-adapter id="filteredFiles"
directory="${controller.cycle.lists.input.dir}"
channel="semaphoreChannel" filename-pattern="*.xml">
<int:poller cron="0 * * * * *" />
</int-file:inbound-channel-adapter>

Answer 1

It does not make sense.
Since you use default settings for other <poller> options, you end up with:
public static final int MAX_MESSAGES_UNBOUNDED = Integer.MIN_VALUE;
private volatile long maxMessagesPerPoll = MAX_MESSAGES_UNBOUNDED;
That means the FileReadingMessageSource reads all files by provided pattern during the single poller cycle.
The poller doesn't stop to work, but there is nothing more in the directory to read.
Change to this max-messages-per-poll="1" and let us know how it is.
From other side you can switch on DEBUG logging level for the org.springframework.integration.endpoint.SourcePollingChannelAdapter and there will be a message in logs:
Received no Message during the poll, returning 'false'