CircleCI: Error unmarshaling return header; nested exception is:

This configuration got rid of the issue:

Changing from JVM_OPTS: -Xmx3200m to JVM_OPTS: -Xmx2048m was important

version: 2

executors:
  my-executor:
    docker:
      - image: circleci/android:api-28-node
    working_directory: ~/code
    environment:
      JVM_OPTS: -Xmx2048m
      GRADLE_OPTS: -Xmx1536m -XX:+HeapDumpOnOutOfMemoryError -Dorg.gradle.caching=true -Dorg.gradle.configureondemand=true -Dkotlin.compiler.execution.strategy=in-process -Dkotlin.incremental=false