Add back maven example and add build to Travis

This CL also updates `.travis.yml` to run `run-local-tests.sh` to make it more in line with what we do internally.

RELNOTES=Add back maven example

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=315743889

11 files changed, 435 insertions, 0 deletions

diff --git a/examples/maven/coffee/pom.xml b/examples/maven/coffee/pom.xml
new file mode 100644
index 000000000..a196d997d
--- /dev/null
+++ b/examples/maven/coffee/pom.xml
@@ -0,0 +1,59 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Copyright (C) 2012 The Dagger Authors.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>com.google.dagger.examples</groupId>
+    <artifactId>parent</artifactId>
+    <version>LOCAL-SNAPSHOT</version>
+  </parent>
+
+  <artifactId>coffee</artifactId>
+  <name>Examples: Coffee</name>
+
+  <dependencies>
+    <dependency>
+      <!-- Force the correct version of Guava to be on the classpath. -->
+      <groupId>com.google.guava</groupId>
+      <artifactId>guava</artifactId>
+    </dependency>
+    <dependency>
+      <groupId>com.google.dagger</groupId>
+      <artifactId>dagger</artifactId>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>3.6.1</version>
+        <configuration>
+          <annotationProcessorPaths>
+            <path>
+              <groupId>com.google.dagger</groupId>
+              <artifactId>dagger-compiler</artifactId>
+              <version>${project.version}</version>
+            </path>
+          </annotationProcessorPaths>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+</project>
diff --git a/examples/maven/coffee/src/main/java/example/dagger/CoffeeApp.java b/examples/maven/coffee/src/main/java/example/dagger/CoffeeApp.java
new file mode 100644
index 000000000..723ab919c
--- /dev/null
+++ b/examples/maven/coffee/src/main/java/example/dagger/CoffeeApp.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2020 The Dagger Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package example.dagger;
+
+import dagger.Component;
+import javax.inject.Singleton;
+
+/** The main app responsible for brewing the coffee and printing the logs. */
+public class CoffeeApp {
+  @Singleton
+  @Component(
+      modules = {
+        HeaterModule.class,
+        PumpModule.class
+      }
+  )
+  public interface CoffeeShop {
+    CoffeeMaker maker();
+    CoffeeLogger logger();
+  }
+
+  public static void main(String[] args) {
+    CoffeeShop coffeeShop = DaggerCoffeeApp_CoffeeShop.builder().build();
+    coffeeShop.maker().brew();
+    coffeeShop.logger().logs().forEach(log -> System.out.println(log));
+  }
+}
diff --git a/examples/maven/coffee/src/main/java/example/dagger/CoffeeLogger.java b/examples/maven/coffee/src/main/java/example/dagger/CoffeeLogger.java
new file mode 100644
index 000000000..16d2bdbc6
--- /dev/null
+++ b/examples/maven/coffee/src/main/java/example/dagger/CoffeeLogger.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2020 The Dagger Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package example.dagger;
+
+import java.util.ArrayList;
+import java.util.List;
+import javax.inject.Inject;
+import javax.inject.Singleton;
+
+/** A logger to logs steps while brewing coffee. */
+@Singleton
+public final class CoffeeLogger {
+  private final List<String> logs = new ArrayList<>();
+
+  @Inject
+  CoffeeLogger() {}
+
+  public void log(String msg) {
+    logs.add(msg);
+  }
+
+  public List<String> logs() {
+    return new ArrayList<>(logs);
+  }
+}
diff --git a/examples/maven/coffee/src/main/java/example/dagger/CoffeeMaker.java b/examples/maven/coffee/src/main/java/example/dagger/CoffeeMaker.java
new file mode 100644
index 000000000..20c1f27a8
--- /dev/null
+++ b/examples/maven/coffee/src/main/java/example/dagger/CoffeeMaker.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2020 The Dagger Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package example.dagger;
+
+import dagger.Lazy;
+import javax.inject.Inject;
+
+/** A coffee maker to brew the coffee. */
+public class CoffeeMaker {
+  private final CoffeeLogger logger;
+  private final Lazy<Heater> heater; // Create a possibly costly heater only when we use it.
+  private final Pump pump;
+
+  @Inject
+  CoffeeMaker(CoffeeLogger logger, Lazy<Heater> heater, Pump pump) {
+    this.logger = logger;
+    this.heater = heater;
+    this.pump = pump;
+  }
+
+  public void brew() {
+    heater.get().on();
+    pump.pump();
+    logger.log(" [_]P coffee! [_]P ");
+    heater.get().off();
+  }
+}
diff --git a/examples/maven/coffee/src/main/java/example/dagger/ElectricHeater.java b/examples/maven/coffee/src/main/java/example/dagger/ElectricHeater.java
new file mode 100644
index 000000000..567c7aa6b
--- /dev/null
+++ b/examples/maven/coffee/src/main/java/example/dagger/ElectricHeater.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2020 The Dagger Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package example.dagger;
+
+import javax.inject.Inject;
+
+/** An electric heater to heat the coffee. */
+public class ElectricHeater implements Heater {
+
+  private final CoffeeLogger logger;
+  private boolean heating;
+
+  @Inject
+  ElectricHeater(CoffeeLogger logger) {
+    this.logger = logger;
+  }
+
+  @Override
+  public void on() {
+    this.heating = true;
+    logger.log("~ ~ ~ heating ~ ~ ~");
+  }
+
+  @Override
+  public void off() {
+    this.heating = false;
+  }
+
+  @Override
+  public boolean isHot() {
+    return heating;
+  }
+}
diff --git a/examples/maven/coffee/src/main/java/example/dagger/Heater.java b/examples/maven/coffee/src/main/java/example/dagger/Heater.java
new file mode 100644
index 000000000..3d6d1f2b4
--- /dev/null
+++ b/examples/maven/coffee/src/main/java/example/dagger/Heater.java
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2020 The Dagger Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package example.dagger;
+
+/** A heater to heat the coffee. */
+public interface Heater {
+  void on();
+  void off();
+  boolean isHot();
+}
diff --git a/examples/maven/coffee/src/main/java/example/dagger/HeaterModule.java b/examples/maven/coffee/src/main/java/example/dagger/HeaterModule.java
new file mode 100644
index 000000000..fb8c9691b
--- /dev/null
+++ b/examples/maven/coffee/src/main/java/example/dagger/HeaterModule.java
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2020 The Dagger Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package example.dagger;
+
+import dagger.Binds;
+import dagger.Module;
+import javax.inject.Singleton;
+
+@Module
+interface HeaterModule {
+  @Binds
+  @Singleton
+  Heater bindHeater(ElectricHeater impl);
+}
diff --git a/examples/maven/coffee/src/main/java/example/dagger/Pump.java b/examples/maven/coffee/src/main/java/example/dagger/Pump.java
new file mode 100644
index 000000000..712b21c43
--- /dev/null
+++ b/examples/maven/coffee/src/main/java/example/dagger/Pump.java
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2020 The Dagger Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package example.dagger;
+
+/** A pump to pump the coffee. */
+public interface Pump {
+  void pump();
+}
diff --git a/examples/maven/coffee/src/main/java/example/dagger/PumpModule.java b/examples/maven/coffee/src/main/java/example/dagger/PumpModule.java
new file mode 100644
index 000000000..202fed3b6
--- /dev/null
+++ b/examples/maven/coffee/src/main/java/example/dagger/PumpModule.java
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2020 The Dagger Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package example.dagger;
+
+import dagger.Binds;
+import dagger.Module;
+
+@Module
+abstract class PumpModule {
+  @Binds
+  abstract Pump providePump(Thermosiphon pump);
+}
diff --git a/examples/maven/coffee/src/main/java/example/dagger/Thermosiphon.java b/examples/maven/coffee/src/main/java/example/dagger/Thermosiphon.java
new file mode 100644
index 000000000..d94c33f22
--- /dev/null
+++ b/examples/maven/coffee/src/main/java/example/dagger/Thermosiphon.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2020 The Dagger Authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package example.dagger;
+
+import javax.inject.Inject;
+
+/** A thermosiphon to pump the coffee. */
+public class Thermosiphon implements Pump {
+  private final CoffeeLogger logger;
+  private final Heater heater;
+
+  @Inject
+  Thermosiphon(CoffeeLogger logger, Heater heater) {
+    this.logger = logger;
+    this.heater = heater;
+  }
+
+  @Override
+  public void pump() {
+    if (heater.isHot()) {
+      logger.log("=> => pumping => =>");
+    }
+  }
+}
diff --git a/examples/maven/pom.xml b/examples/maven/pom.xml
new file mode 100644
index 000000000..be21b9649
--- /dev/null
+++ b/examples/maven/pom.xml
@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  Copyright (C) 2013 The Dagger Authors.
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.sonatype.oss</groupId>
+    <artifactId>oss-parent</artifactId>
+    <version>9</version>
+  </parent>
+
+  <groupId>com.google.dagger.examples</groupId>
+  <artifactId>parent</artifactId>
+  <packaging>pom</packaging>
+  <name>Examples</name>
+  <version>LOCAL-SNAPSHOT</version>
+
+  <modules>
+    <module>coffee</module>
+  </modules>
+
+  <!-- Example-only dependencies. -->
+  <dependencyManagement>
+    <dependencies>
+      <dependency>
+        <groupId>com.google.dagger</groupId>
+        <artifactId>dagger</artifactId>
+        <version>${project.version}</version>
+      </dependency>
+      <dependency>
+        <groupId>com.google.dagger</groupId>
+        <artifactId>dagger-compiler</artifactId>
+        <version>${project.version}</version>
+      </dependency>
+      <dependency>
+        <groupId>com.google.guava</groupId>
+        <artifactId>guava</artifactId>
+        <version>26.0-jre</version>
+      </dependency>
+    </dependencies>
+  </dependencyManagement>
+
+  <build>
+    <pluginManagement>
+      <plugins>
+       <plugin>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <configuration>
+            <source>1.8</source>
+            <target>1.8</target>
+          </configuration>
+        </plugin>
+      </plugins>
+    </pluginManagement>
+  </build>
+</project>