[BEAM-8917] jsr305 dependency declaration for Nullable class (apache#…

…10324)

The Maven artifact org.apache.beam:beam-sdks-java-core, which contains org.apache.beam.sdk.schemas.FieldValueTypeInformation, should declare the dependency to com.google.code.findbugs:jsr305. The class needs Nullable class at runtime.

buildSrc/src/main/groovy/org/apache/beam/gradle/BeamModulePlugin.groovy

@@ -490,6 +490,7 @@ class BeamModulePlugin implements Plugin<Project> {
  jackson_module_scala : "com.fasterxml.jackson.module:jackson-module-scala_2.11:$jackson_version",
  jaxb_api : "javax.xml.bind:jaxb-api:$jaxb_api_version",
  joda_time : "joda-time:joda-time:2.10.3",
+ jsr305 : "com.google.code.findbugs:jsr305:3.0.2",
  junit : "junit:junit:4.13-beta-3",
  kafka : "org.apache.kafka:kafka_2.11:$kafka_version",
  kafka_clients : "org.apache.kafka:kafka-clients:$kafka_version",
@@ -738,6 +739,10 @@ class BeamModulePlugin implements Plugin<Project> {
  // spotbugs-annotations artifact is licensed under LGPL and cannot be included in the
  // Apache Beam distribution, but may be relied on during build.
  // See: https://www.apache.org/legal/resolved.html#prohibited
+ // Special case for jsr305 (a transitive dependency of spotbugs-annotations):
+ // sdks/java/core's FieldValueTypeInformation needs javax.annotations.Nullable at runtime.
+ // Therefore, the java core module declares jsr305 dependency (BSD license) as "compile".
+ // https:/findbugsproject/findbugs/blob/master/findbugs/licenses/LICENSE-jsr305.txt
  "com.github.spotbugs:spotbugs-annotations:3.1.12",
  "net.jcip:jcip-annotations:1.0",
  ]

sdks/java/core/build.gradle

@@ -69,6 +69,7 @@ dependencies {
  compile library.java.protobuf_java
  compile library.java.commons_compress
  compile library.java.commons_lang3
+ compile library.java.jsr305
  shadow library.java.jackson_core
  shadow library.java.jackson_annotations
  shadow library.java.jackson_databind