Introduce javax.annotation-api dependency as a workaround for build with JDK 11

Signed-off-by: Eric Zhao <sczyh16@gmail.com>

Author: sczyh30

pom.xml

@@ -48,6 +48,7 @@
         <protobuf.version>3.10.0</protobuf.version>
         <grpc.version>1.42.1</grpc.version>
         <slf4j.version>1.7.36</slf4j.version>
+        <javax.annotation-api.version>1.3.2</javax.annotation-api.version>
 
         <!-- Test libs -->
         <junit.version>4.12</junit.version>
@@ -94,6 +95,14 @@
             <version>${slf4j.version}</version>
         </dependency>
 
+
+        <!-- workaround for compile in JDK 11 -->
+        <dependency>
+            <groupId>javax.annotation</groupId>
+            <artifactId>javax.annotation-api</artifactId>
+            <version>${javax.annotation-api.version}</version>
+        </dependency>
+
         <!-- test-scope dependencies -->
         <dependency>
             <groupId>junit</groupId>