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Continue to ChatFinder Method – Service Builder in Liferay 7 https://rupalchatterjee.wordpress.com/2016/09/14/finder-method-service-builder-in-liferay-7/
Finder Method – Service Builder in Liferay 7 https://rupalchatterjee.wordpress.com/2016/09/14/finder-method-service-builder-in-liferay-7/