HubertWo

# Removes:
# all stoped containers
# all volumes 
# all unused images 
docker container prune -f && \
docker images prune -q && \
docker volume prune -f

HubertWo

import org.jetbrains.annotations.NotNull;
... 

    // https://checkerframework.org/jsr308/specification/java-annotation-design.html#array-syntax 
  
    @Test
    public void dummy() {
        foo(null); // 1
        foo(new Integer[]{null}); // 2
    }

HubertWo

package com.github.hubertwo.okhttptest;


import okhttp3.*;

import java.io.IOException;
import java.util.concurrent.TimeUnit;

/**
 * This is a short example how to avoid problem