Import Spring Boot's dependency BOM, fix spring-boot:run at parent project level

CONTRIBUTING.md

@@ -223,7 +223,55 @@ entity_dataset {
 '
 ```
 
-#### Tips for quickly running Postgres, Redis and Kafka locally with Docker
+## Development
+
+Notes:
+
+  - Use of Lombok is being phased out, prefer to use [Google Auto] in new code.
+
+[Google Auto]: https://github.com/google/auto
+
+### Running Unit Tests
+
+    $ mvn test
+
+### Running Integration Tests
+
+_Note: integration suite isn't yet separated from unit._
+
+    $ mvn verify
+
+### Running Components Locally
+
+The `core` and `serving` modules are Spring Boot applications. These may be run as usual for [the Spring Boot Maven plugin][boot-maven]:
+
+    $ mvn --also-make --projects core sprint-boot:run
+
+    # Or for short:
+    $ mvn -am -pl core spring-boot:run
+
+Note the use of `--also-make` since some components depend on library modules from within the project.
+
+[boot-maven]: https://docs.spring.io/spring-boot/docs/current/maven-plugin/index.html
+
+#### Running From IntelliJ
+
+IntelliJ IDEA Ultimate has built-in support for Spring Boot projects, so everything may work out of the box. The Community Edition needs help with two matters:
+
+1. The IDE is [not clever enough][idea-also-make] to apply `--also-make` for Maven when it should.
+1. The Spring Boot Maven plugin automatically puts dependencies with `provided` scope on the runtime classpath when using `spring-boot:run`, such as its embedded Tomcat server. The "Play" buttons in the gutter or right-click menu of a `main()` method [do not do this][idea-boot-main].
+
+Fortunately there is one simple way to address both:
+
+1. Open `View > Tool Windows > Maven`
+1. Drill down to e.g. `Feast Core > Plugins > spring-boot:run`, right-click and `Create 'feast-core [spring-boot'…`
+1. In the dialog that pops up, check the `Resolve Workspace artifacts` box
+1. Click `OK`. You should now be able to select this run configuration for the Play button in the main toolbar, keyboard shortcuts, etc.
+
+[idea-also-make]: https://stackoverflow.com/questions/15073877/using-mavens-also-make-option-in-intellij
+[idea-boot-main]: https://stackoverflow.com/questions/30237768/run-spring-boots-main-using-ide
+
+#### Tips for Running Postgres, Redis and Kafka with Docker
 
 This guide assumes you are running Docker service on a bridge network (which
 is usually the case if you're running Linux). Otherwise, you may need to

core/pom.xml

@@ -32,6 +32,13 @@
 
     <build>
         <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+                <configuration>
+                    <skip>false</skip>
+                </configuration>
+            </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-shade-plugin</artifactId>
@@ -87,6 +94,14 @@
             <version>${project.version}</version>
         </dependency>
 
+        <!-- Hot reloading for Spring Boot. spring-boot-maven-plugin removes
+             this automatically when packaging. -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-devtools</artifactId>
+            <optional>true</optional>
+        </dependency>
+
         <dependency>
           <groupId>javax.inject</groupId>
           <artifactId>javax.inject</artifactId>
@@ -111,7 +126,6 @@
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-data-jpa</artifactId>
-            <version>${springBootVersion}</version>
         </dependency>
         <!--compile "org.springframework.boot:spring-boot-starter-actuator:${springBootVersion}"-->
         <dependency>
@@ -125,7 +139,6 @@
             <artifactId>spring-boot-configuration-processor</artifactId>
         </dependency>
 
-
         <!--compile "io.grpc:grpc-services:${grpcVersion}"-->
         <dependency>
             <groupId>io.grpc</groupId>
@@ -175,8 +188,8 @@
         <dependency>
             <groupId>org.postgresql</groupId>
             <artifactId>postgresql</artifactId>
-            <version>42.2.5</version>
-            <scope>runtime</scope>
+            <scope>provided</scope>
+            <optional>true</optional>
         </dependency>
 
         <dependency>
@@ -190,10 +203,9 @@
             <artifactId>lombok</artifactId>
         </dependency>
 
-        <!--testCompile 'org.hamcrest:hamcrest-all:1.3'-->
         <dependency>
             <groupId>org.hamcrest</groupId>
-            <artifactId>hamcrest-all</artifactId>
+            <artifactId>hamcrest-library</artifactId>
         </dependency>
 
         <!--testCompile 'com.jayway.jsonpath:json-path-assert:2.2.0'-->
@@ -213,10 +225,12 @@
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-test</artifactId>
+            <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-test-autoconfigure</artifactId>
+            <scope>test</scope>
         </dependency>
     </dependencies>
 </project>

core/src/test/java/feast/core/job/dataflow/DataflowJobMonitorTest.java

@@ -35,7 +35,6 @@
 import feast.types.FieldProto.Field;
 import feast.types.ValueProto.BoolList;
 import feast.types.ValueProto.Value;
-import feast.types.ValueProto.ValueType;
 import java.io.IOException;
 import org.junit.Before;
 import org.junit.Test;

ingestion/pom.xml

@@ -248,7 +248,6 @@
     <dependency>
       <groupId>org.apache.kafka</groupId>
       <artifactId>kafka_2.12</artifactId>
-      <version>2.3.0</version>
       <scope>test</scope>
     </dependency>