Building and managing Java function dependencies

Cloud Functions supports two methods of managing Java function dependencies: automatic installation from the source code using Maven and adding dependencies manually to a project archive. However, you cannot configure dependencies using both methods at the same time.

Dependency installation is limited in terms of resources and execution time. For more information, see Quotas and limits in Cloud Functions. You can view the dependency installation log via the link displayed in the list of operations.

MavenMaven

Maven is a dependency management system for Java.

To deliver dependencies, configure them in the pom.xml file. No other steps, including project compilation, are required.

To set the dependency loading order, upload a file named classpath.txt to the project root. This file must list the dependencies line by line in the required order.

Manual delivery of dependenciesManual delivery of dependencies

To configure dependencies manually, place the JAR archives of the required libraries in the project archive root. Example:

build.zip
+--org
+----package
+------Main.java
+--dependency.jar

Recommended versions of Java librariesRecommended versions of Java libraries