mp911de

package com.example.demo;

import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.TreeMap;
import java.util.stream.IntStream;

odrotbohm

Using annotation based null checks in Eclipse

Found issues

Calls to remote API not using nullability annotations cause warnings

Assume you call some external API (e.g. JDK API) that doesn’t use the nullability annotations:

eeichinger

                <!--
                    compile java 1.8, target java 1.7
                -->
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-compiler-plugin</artifactId>
                    <version>3.3</version>
                    <configuration>
                        <encoding>utf-8</encoding>
                        <source>1.8</source>

aslakknutsen

JDK 8 Released

Most of us won’t be able to use/deploy JDK 8 in production for a looong time. But that shouldn’t stop us from using it, right?

It should be possible to sneak in JDK 8 in the back way, the same way we snuck in Groovy and other libraries we wanted to use.

The Test Suite to the rescue

The Maven compiler plugin run in two separate lifecycles, compile and testCompile. Those can be configured separately.

odrotbohm

@MappedSuperclass
public abstract class AbstractAuditable<U, PK extends Serializable> extends AbstractPersistable<PK> implements
  	Auditable<U, PK> {
  // …
}

mikekelly

{
  "_links": {
    "self": { "href": "/foo" },
  },
  "_controls": {
    "attack": {
      "target": "/attacks",
      "method": "POST",
      "headers": {
        "Content-Type": "application/json"

odrotbohm

JPQL: select p from Person p 
      left outer join p.address address 
      order by address.city
SQL:  select person0_ from Person person0_ 
      left outer join Address address1_ on person0_.id=address1_.person_id 
      order by address1_.city

JPQL: select p from Person p 
      left outer join p.address address 
      order by p.address.city

bric3

#  _______ _     _                      _       _                                   _ 
# |__   __| |   (_)                    (_)     | |                                 | |
#    | |  | |__  _ ___    ___  ___ _ __ _ _ __ | |_    _ __ ___   _____   _____  __| |
#    | |  | '_ \| / __|  / __|/ __| '__| | '_ \| __|  | '_ ` _ \ / _ \ \ / / _ \/ _` |
#    | |  | | | | \__ \  \__ \ (__| |  | | |_) | |_   | | | | | | (_) \ V /  __/ (_| |
#    |_|  |_| |_|_|___/  |___/\___|_|  |_| .__/ \__|  |_| |_| |_|\___/ \_/ \___|\__,_|
#                                        | |                                          
#                                        |_|                                          
#
# New home : https://github.com/bric3/osx-jdk5-installer