in aws-codepipeline-server/src/main/java/jetbrains/buildServer/buildTriggers/codepipeline/ParametersValidator.java [19:26]
public static Map<String, String> validateSettings(@NotNull Map<String, String> params, boolean acceptReferences) {
final Map<String, String> invalids = new HashMap<String, String>(AWSCommonParams.validate(params, acceptReferences));
if (StringUtil.isEmptyOrSpaces(CodePipelineUtil.getActionToken(params))) {
invalids.put(CodePipelineConstants.ACTION_TOKEN_PARAM, CodePipelineConstants.ACTION_TOKEN_LABEL + " parameter must not be empty");
}
return invalids;
}