AWS SAM CLI java8 runtime is not supported

Question

I'm trying to build a Lambda application using AWS SAM CLI command:

sam build --template C:/MyProject/template.yaml --build-dir C:/MyProject/.aws-sam/build

but I'm getting this error:

Build Failed

Error: 'java8' runtime is not supported

This is my template.yaml:

AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: >
  AWS Serverless Application
  Sample SAM Template for AWS Serverless Application
Globals:
  Function:
      Timeout: 20
Resources:
  HelloWorldFunction:
      Type: AWS::Serverless::Function
      Properties:
          CodeUri: target/HelloWorld-1.0.jar
          Handler: helloworld.App::handleRequest
          Runtime: java8
          Environment: 
              Variables:
                  PARAM1: VALUE
          Events:
              HelloWorld:
                  Type: Api
                  Properties:
                      Path: /hello
                      Method: get

It's an example project made in Intellij using AWS Toolkit plugin, I have installed SAM CLI version 0.9.0 and jdk1.8.0_191 (I've tried different versions but it didn't work), at the project's GitHub I can see that java 8 is supported:

[ ] Supported AWS Lambda Runtimes
    [x] java8

Why am I getting this error?

Still no progress, for now I have to test everything in AWS without local testing. — Michael Dz, Jan 17 '19 at 09:32

score 3 · Accepted Answer · edited Jan 17 '19 at 18:29

3

Seems like the build option doesn't support the java8 runtime

When I run sam build --help the result is: enter image description here which implies that it only works for python

edited Jan 17 '19 at 18:29

matsev

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answered Jan 17 '19 at 16:41

sakata-san

46
2

That's correct, Java 8 support for build is still under development: https://github.com/awslabs/aws-sam-cli/issues/880 – Michael Dz Jan 31 '19 at 15:42
This is not true anymore. – jack2684 Jan 03 '21 at 08:18

score 0 · Answer 2 · answered Jul 16 '21 at 03:58

0

In my case,

Previously, I had given like below,

CodeUri: hello-world.jar

I have changed it to

CodeUri: ./hello-world

where hello-world is my java project's source directory.

answered Jul 16 '21 at 03:58

NIrav Modi

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AWS SAM CLI java8 runtime is not supported

2 Answers2