Add java example

app/java/.gitignore

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+# App
+logs/*
+
+# Gradle
+.gradle
+build/
+
+# Ignore Gradle GUI config
+gradle-app.setting
+

app/java/.travis.yml

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+language: java
+
+jdk:
+  - openjdk8
+  - openjdk11
+  - oraclejdk11
+
+os:
+  - linux
+
+before_cache:
+  - rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
+  - rm -fr $HOME/.gradle/caches/*/plugin-resolution/
+
+cache:
+  directories:
+    - $HOME/.gradle/caches/
+    - $HOME/.gradle/wrapper/
+
+# Override default install process on TravisCI
+# Avoid default `gradlew assemble` execution. Be explicit about it on the `script` section.
+# More info: https://github.com/travis-ci/travis-ci/issues/8667
+install: true
+
+# Build pipeline
+# Compile before running the tests in order to easily check which task could be failing.
+script:
+  - ./gradlew assemble
+  - ./gradlew check

app/java/README.md

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+# Java Bootstrap (base / project skeleton)
+
+## Introduction
+
+This is a repository intended to serve as a starting point if you want to bootstrap a project in Java 8 with JUnit 5.2 and Gradle 4.6.
+
+## How To Start
+
+1. Install Java 8
+2. Clone this repository `git clone https://github.com/CodelyTV/java-bootstrap`.
+3. Run the tests with `./gradlew test`
+4. Start developing!

app/java/bitbucket-pipelines.yml

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+image: java:8
+
+options:
+  max-time: 10
+
+pipelines:
+  default:
+    - step:
+        caches:
+          - gradle
+        script:
+          - bash ./gradlew build

app/java/build.gradle

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+apply plugin: 'java'
+
+sourceCompatibility = 1.8
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation 'org.apache.logging.log4j:log4j-core:2.11.1'
+    implementation 'com.vlkan.log4j2:log4j2-logstash-layout:0.15'
+
+    testCompile 'org.junit.jupiter:junit-jupiter-api:5.2.0'
+    testRuntime 'org.junit.jupiter:junit-jupiter-engine:5.2.0'
+}
+
+test {
+    useJUnitPlatform()
+
+    testLogging {
+        events "passed", "skipped", "failed"
+    }
+
+    reports {
+        html.enabled = true
+    }
+}
+
+wrapper {
+    description = 'Generates gradlew[.bat] scripts'
+    gradleVersion = '4.6'
+}

app/java/gradle/wrapper/gradle-wrapper.properties

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+#Fri Jun 01 07:06:45 CEST 2018
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10-all.zip

app/java/src/main/java/tv/codely/elastic_stack_example/Greeter.java

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+package tv.codely.elastic_stack_example;
+
+public class Greeter {
+
+    public String greet(String name) {
+        return "Hello " + name;
+    }
+
+}