GH-10083: Apply Nullability to TCP/IP module #10306
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...src/main/java/org/springframework/integration/ip/config/TcpConnectionFactoryFactoryBean.java
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...g-integration-ip/src/main/java/org/springframework/integration/ip/tcp/TcpInboundGateway.java
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...c/main/java/org/springframework/integration/ip/tcp/connection/AbstractConnectionFactory.java
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...on-ip/src/main/java/org/springframework/integration/ip/udp/UnicastSendingMessageHandler.java
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Related to: spring-projects#10083 * Add `@NullMarked` to every package * Assume `BeanFactory` and `ApplicationEventPublisher` are not null in TCP/IP components. Therefore, fix all the failing tests to ensure those properties and their propagation via `afterPropertiesSet()`
…fType` instead of `try..catch`
* Remove `SyslogdTests.java` which are not tests.
…is set in the `onInit()` * Improve `UnicastSendingMessageHandler.restartAckThread()` to reflect the proper state of the `UnicastSendingMessageHandler`
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mrpiggi
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Aug 14, 2025
| if (connection == null) { | ||
| publishNoConnectionEvent(message, connectionId); | ||
| logger.error(() -> "Connection not found when processing reply " + reply + " for " + message); | ||
| return false; |
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Just curious: This method always returns false, but I didn't look into detail. If this is desired, I wondered if for the sake of readability, this one should be changed to void.
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Good catch, @mrpiggi !
The contract is this:
@FunctionalInterface
public interface TcpListener {
/**
* Called by a TCPConnection when a new message arrives.
* @param message The message.
* @return true if the message was intercepted
*/
boolean onMessage(Message<?> message);
}
So, we need to revise and return true at some point.
mrpiggi
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Aug 14, 2025
| catch (Exception ex) { | ||
| logger.error(ex, "Exception accepting new connection(s)"); | ||
| private void keyAcceptable(final Selector selector, @Nullable ServerSocketChannel server, final long now) { | ||
| if (server != null) { |
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Just nitpicking: I tend to prefer if (server == null) { return; } as this reduces the level of indentation
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I think we had something like that before, but SonarQube has complained about unnecessary return; in the method. 🤷
The if (server != null) { also makes less code lines.
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Related to: #10083
@NullMarkedto every packageBeanFactoryandApplicationEventPublisherare not null in TCP/IP components. Therefore, fix all the failing tests to ensure those properties and their propagation viaafterPropertiesSet()