Building and managing Java function dependencies

Cloud Functions supports two ways to manage 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.

The process of installing dependencies has resource and execution time limits. For more information, see Quotas and limits in Cloud Functions. You can view the dependency installation log using the link that appears in the list of operations.

MavenMaven

Maven is a system for managing dependencies in Java.

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

To set the loading order for dependencies, 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