Include grpc plugin in agent jar

CHANGELOG.asciidoc

@@ -46,6 +46,7 @@ This is not a breaking change, so former
 * Fix side effect of calling `Statement.getUpdateCount` more than once {pull}1139[#1139]
 * Stop capturing JDBC affected rows count using `Statement.getUpdateCount` to prevent unreliable side-effects {pull}1147[#1147]
 * Fix OpenTracing error tag handling (set transaction error result when tag value is `true`) {pull}1159[#1159]
+* Due to a bug in the build we didn't include the gRPC plugin in the build so far
 
 
 [[release-notes-1.x]]

apm-agent-plugins/apm-grpc/apm-grpc-plugin/src/main/java/co/elastic/apm/agent/grpc/ClientCallImplInstrumentation.java

@@ -105,7 +105,7 @@ public Constructor(ElasticApmTracer tracer) {
 
         @Override
         public ElementMatcher<? super MethodDescription> getMethodMatcher() {
-            return isConstructor().and(takesArgument(0, MethodDescriptor.class));
+            return isConstructor().and(takesArgument(0, named("io.grpc.MethodDescriptor")));
         }
 
         @Advice.OnMethodEnter(suppress = Throwable.class)

docs/configuration.asciidoc

@@ -665,7 +665,7 @@ you should add an additional entry to this list (make sure to also include the d
 ==== `disable_instrumentations` (added[1.0.0,Changing this value at runtime is possible since version 1.15.0])
 
 A list of instrumentations which should be disabled.
-Valid options are `annotations`, `apache-commons-exec`, `apache-httpclient`, `asynchttpclient`, `concurrent`, `elasticsearch-restclient`, `exception-handler`, `executor`, `experimental`, `hibernate-search`, `http-client`, `jax-rs`, `jax-ws`, `jdbc`, `jedis`, `jms`, `jsf`, `kafka`, `lettuce`, `log4j`, `logging`, `mongodb-client`, `mule`, `okhttp`, `opentracing`, `process`, `public-api`, `quartz`, `redis`, `redisson`, `render`, `scheduled`, `servlet-api`, `servlet-api-async`, `servlet-input-stream`, `slf4j`, `spring-mvc`, `spring-resttemplate`, `spring-service-name`, `spring-view-render`, `urlconnection`.
+Valid options are `annotations`, `apache-commons-exec`, `apache-httpclient`, `asynchttpclient`, `concurrent`, `elasticsearch-restclient`, `exception-handler`, `executor`, `experimental`, `grpc`, `hibernate-search`, `http-client`, `jax-rs`, `jax-ws`, `jdbc`, `jedis`, `jms`, `jsf`, `kafka`, `lettuce`, `log4j`, `logging`, `mongodb-client`, `mule`, `okhttp`, `opentracing`, `process`, `public-api`, `quartz`, `redis`, `redisson`, `render`, `scheduled`, `servlet-api`, `servlet-api-async`, `servlet-input-stream`, `slf4j`, `spring-mvc`, `spring-resttemplate`, `spring-service-name`, `spring-view-render`, `urlconnection`.
 If you want to try out experimental features, set the value to an empty string.
 
 NOTE: Changing this value at runtime can slow down the application temporarily.
@@ -2376,7 +2376,7 @@ The default unit for this option is `ms`.
 # sanitize_field_names=password,passwd,pwd,secret,*key,*token*,*session*,*credit*,*card*,authorization,set-cookie
 
 # A list of instrumentations which should be disabled.
-# Valid options are `annotations`, `apache-commons-exec`, `apache-httpclient`, `asynchttpclient`, `concurrent`, `elasticsearch-restclient`, `exception-handler`, `executor`, `experimental`, `hibernate-search`, `http-client`, `jax-rs`, `jax-ws`, `jdbc`, `jedis`, `jms`, `jsf`, `kafka`, `lettuce`, `log4j`, `logging`, `mongodb-client`, `mule`, `okhttp`, `opentracing`, `process`, `public-api`, `quartz`, `redis`, `redisson`, `render`, `scheduled`, `servlet-api`, `servlet-api-async`, `servlet-input-stream`, `slf4j`, `spring-mvc`, `spring-resttemplate`, `spring-service-name`, `spring-view-render`, `urlconnection`.
+# Valid options are `annotations`, `apache-commons-exec`, `apache-httpclient`, `asynchttpclient`, `concurrent`, `elasticsearch-restclient`, `exception-handler`, `executor`, `experimental`, `grpc`, `hibernate-search`, `http-client`, `jax-rs`, `jax-ws`, `jdbc`, `jedis`, `jms`, `jsf`, `kafka`, `lettuce`, `log4j`, `logging`, `mongodb-client`, `mule`, `okhttp`, `opentracing`, `process`, `public-api`, `quartz`, `redis`, `redisson`, `render`, `scheduled`, `servlet-api`, `servlet-api-async`, `servlet-input-stream`, `slf4j`, `spring-mvc`, `spring-resttemplate`, `spring-service-name`, `spring-view-render`, `urlconnection`.
 # If you want to try out experimental features, set the value to an empty string.
 # 
 # NOTE: Changing this value at runtime can slow down the application temporarily.

docs/supported-technologies.asciidoc

@@ -407,8 +407,9 @@ When doing so, the ID corresponding the captured error (`error.id`) is added to
 
 | gRPC
 | 1.6.1+
-| Client (synchronous & asynchronous) & Server instrumentation
-| 1.14.0
+| Client (synchronous & asynchronous) & Server instrumentation.
+  Streaming calls are currently not instrumented.
+| 1.16.0
 
 |===
 

elastic-apm-agent/pom.xml

@@ -124,6 +124,11 @@
             <artifactId>apm-es-restclient-plugin-6_4</artifactId>
             <version>${project.version}</version>
         </dependency>
+        <dependency>
+            <groupId>${project.groupId}</groupId>
+            <artifactId>apm-grpc-plugin</artifactId>
+            <version>${project.version}</version>
+        </dependency>
         <dependency>
             <groupId>${project.groupId}</groupId>
             <artifactId>apm-kafka-base-plugin</artifactId>