diff --git a/jaeger-context/build.gradle b/jaeger-context/build.gradle
index 014dd05c4..2f5b4c851 100644
--- a/jaeger-context/build.gradle
+++ b/jaeger-context/build.gradle
@@ -44,7 +44,6 @@ sourceSets {
 
 jar {
     from sourceSets.main.output
-    from sourceSets.test.output
     manifest {
         attributes('Implementation-Title': 'jaeger-context', 'Implementation-Version': project.version)
     }
diff --git a/jaeger-core/build.gradle b/jaeger-core/build.gradle
index 2d4bf8944..a25926cbd 100644
--- a/jaeger-core/build.gradle
+++ b/jaeger-core/build.gradle
@@ -86,7 +86,6 @@ sourceSets {
 
 jar {
     from sourceSets.main.output
-    from sourceSets.test.output
     manifest {
         attributes('Implementation-Title': 'jaeger-core', 'Implementation-Version': project.version)
     }
diff --git a/jaeger-dropwizard/build.gradle b/jaeger-dropwizard/build.gradle
index c30aceff0..3d20f4383 100644
--- a/jaeger-dropwizard/build.gradle
+++ b/jaeger-dropwizard/build.gradle
@@ -47,7 +47,6 @@ sourceSets {
 
 jar {
     from sourceSets.main.output
-    from sourceSets.test.output
     manifest {
         attributes('Implementation-Title': 'jaeger-dropwizard', 'Implementation-Version': project.version)
     }
diff --git a/jaeger-jaxrs2/build.gradle b/jaeger-jaxrs2/build.gradle
index 76908a5d9..a30201ff6 100644
--- a/jaeger-jaxrs2/build.gradle
+++ b/jaeger-jaxrs2/build.gradle
@@ -55,7 +55,6 @@ sourceSets {
 
 jar {
     from sourceSets.main.output
-    from sourceSets.test.output
     manifest {
         attributes('Implementation-Title': 'jaeger-jaxrs2', 'Implementation-Version': project.version)
     }
diff --git a/jaeger-zipkin/build.gradle b/jaeger-zipkin/build.gradle
index 38ded83da..487852f31 100644
--- a/jaeger-zipkin/build.gradle
+++ b/jaeger-zipkin/build.gradle
@@ -47,7 +47,6 @@ sourceSets {
 
 jar {
     from sourceSets.main.output
-    from sourceSets.test.output
     manifest {
         attributes('Implementation-Title': 'jaeger-zipkin', 'Implementation-Version': project.version)
     }
diff --git a/jaeger-zipkin/src/main/java/com/uber/jaeger/senders/zipkin/ZipkinSender.java b/jaeger-zipkin/src/main/java/com/uber/jaeger/senders/zipkin/ZipkinSender.java
index ac2a2ccc6..f847db0f1 100644
--- a/jaeger-zipkin/src/main/java/com/uber/jaeger/senders/zipkin/ZipkinSender.java
+++ b/jaeger-zipkin/src/main/java/com/uber/jaeger/senders/zipkin/ZipkinSender.java
@@ -51,6 +51,7 @@ public final class ZipkinSender implements Sender {
   /**
    * @param endpoint The POST URL for zipkin's <a href="http://zipkin.io/zipkin-api/#/">v1 api</a>, usually
    *                 "http://zipkinhost:9411/api/v1/spans"
+   * @return new sender
    */
   public static ZipkinSender create(String endpoint) {
     return new ZipkinSender(URLConnectionSender.create(endpoint));
@@ -66,6 +67,7 @@ public static ZipkinSender create(String endpoint) {
    * }</pre>
    *
    * @param delegate indicates an alternate sender library than {@link URLConnectionSender}
+   * @return new sender
    */
   public static ZipkinSender create(zipkin.reporter.Sender delegate) {
     return new ZipkinSender(delegate);