This topic describes the Java runtime environments in which you can write function code in Function Compute.
Background information
Unlike scripting languages such as Python and Node.js, Java code must be compiled
before it can be run on a Java virtual machine (JVM). For Java, Function Compute has the following limits:
- No support for code compilation: You can upload only developed and compiled ZIP packages or JAR packages. Function Compute does not support Java-based compilation.
- No support for online editing: You cannot edit code online because code cannot be uploaded. You can submit code only by uploading JAR packages or using Object Storage Service (OSS).
Java runtime
Function Compute supports the following Java runtime environments:
| Version | OS | Architecture |
|---|---|---|
| Java 11 | Linux | x86_64 |
| Java 8 | Linux | x86_64 |
Function Compute provides the following dependency libraries for Java runtime:
com.aliyun:fc-java-core: defines information such as the handler interface and context objects used in a request handler.com.aliyun:fc-java-events: provides the event types of common event sources.FC SDK for Java: the official Function Compute SDK for Java.