spring-cloud-gcp-dependencies/linkage-checker-exclusion-rules.xml

<LinkageCheckerFilter>
	<LinkageError>
		<Source>
			<Package name="com.google.cloud.spring.autoconfigure"/>
		</Source>
		<Reason>
			Spring's autoconfigure classes work only when certain classes are available.
		</Reason>
	</LinkageError>
	<LinkageError>
		<Target>
			<Class name="org.springframework.integration.file.remote.handler.FileTransferringMessageHandler"/>
		</Target>
		<Source>
			<Class name="com.google.cloud.spring.storage.integration.outbound.GcsMessageHandler"/>
		</Source>
		<Reason>
			The source class is used only when the target class is available.
		</Reason>
	</LinkageError>
</LinkageCheckerFilter>