Fix build warnings

* Set <relativePath/> on <parent> element to prevent warnings about pointing to the wrong parent.
* Fix package name - avoid warning about invalid javadoc.

Partially resolves #156

function-samples/http-click-ingest/pom.xml

@@ -6,6 +6,7 @@
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
     <version>2.3.1.RELEASE</version>
+    <relativePath/>
   </parent>
 
   <groupId>org.springframework.cloud.dataflow.samples</groupId>

function-samples/http-region-ingest/pom.xml

@@ -6,6 +6,7 @@
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
     <version>2.3.1.RELEASE</version>
+    <relativePath/>
   </parent>
 
   <groupId>org.springframework.cloud.dataflow.samples</groupId>

function-samples/kstreams-join-user-clicks-and-region/pom.xml

@@ -7,6 +7,7 @@
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
 		<version>2.3.1.RELEASE</version>
+		<relativePath/>
 	</parent>
 
 	<groupId>org.springframework.cloud.dataflow.samples</groupId>

function-samples/kstreams-log-user-clicks-per-region/pom.xml

@@ -6,6 +6,7 @@
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
     <version>2.3.1.RELEASE</version>
+    <relativePath/>
   </parent>
 
   <groupId>org.springframework.cloud.dataflow.samples</groupId>

function-samples/transform-user-clicks-per-region/pom.xml

@@ -6,6 +6,7 @@
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
     <version>2.3.1.RELEASE</version>
+    <relativePath/>
   </parent>
 
   <groupId>org.springframework.cloud.dataflow.samples</groupId>

function-samples/uppercase-processor/pom.xml

@@ -6,6 +6,7 @@
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
     <version>2.3.1.RELEASE</version>
+    <relativePath/>
   </parent>
 
   <groupId>org.springframework.cloud.dataflow.samples</groupId>

kafka-samples/http-ingest/pom.xml

@@ -6,6 +6,7 @@
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
     <version>2.1.3.RELEASE</version>
+    <relativePath/>
   </parent>
 
   <groupId>org.springframework.cloud.dataflow.samples</groupId>

kafka-samples/kstreams-join-user-clicks-and-region/pom.xml

@@ -7,6 +7,7 @@
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
 		<version>2.1.3.RELEASE</version>
+		<relativePath/>
 	</parent>
 
 	<groupId>org.springframework.cloud.dataflow.samples</groupId>

kafka-samples/kstreams-log-user-clicks-per-region/pom.xml

@@ -6,6 +6,7 @@
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
     <version>2.1.3.RELEASE</version>
+    <relativePath/>
   </parent>
 
   <groupId>org.springframework.cloud.dataflow.samples</groupId>

kafka-samples/kstreams-word-count/pom.xml

@@ -7,6 +7,7 @@
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
 		<version>2.1.3.RELEASE</version>
+		<relativePath/>
 	</parent>
 
 	<groupId>org.springframework.cloud.dataflow.samples</groupId>

multi-io-samples/kafka-streams/user-clicks-per-region-1.2.x/http-click-ingest/pom.xml

@@ -6,6 +6,7 @@
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
     <version>2.3.11.RELEASE</version>
+    <relativePath/>
   </parent>
 
   <groupId>org.springframework.cloud.dataflow.samples</groupId>

multi-io-samples/kafka-streams/user-clicks-per-region-1.2.x/http-clicks-and-region-ingest/pom.xml

@@ -6,6 +6,7 @@
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
     <version>2.3.11.RELEASE</version>
+    <relativePath/>
   </parent>
 
   <groupId>org.springframework.cloud.dataflow.samples</groupId>

multi-io-samples/kafka-streams/user-clicks-per-region-1.2.x/http-region-ingest/pom.xml

@@ -6,6 +6,7 @@
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
     <version>2.3.11.RELEASE</version>
+    <relativePath/>
   </parent>
 
   <groupId>org.springframework.cloud.dataflow.samples</groupId>

multi-io-samples/kafka-streams/user-clicks-per-region-1.2.x/log-user-clicks-per-region/pom.xml

@@ -6,6 +6,7 @@
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
     <version>2.3.11.RELEASE</version>
+    <relativePath/>
   </parent>
 
   <groupId>org.springframework.cloud.dataflow.samples</groupId>

multi-io-samples/kafka-streams/user-clicks-per-region-1.2.x/user-clicks-per-region-processor/pom.xml

@@ -7,6 +7,7 @@
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
 		<version>2.3.11.RELEASE</version>
+		<relativePath/>
 	</parent>
 
 	<groupId>org.springframework.cloud.dataflow.samples</groupId>

multi-io-samples/ticktock/multi-output-time-kafka/src/main/java/org/springframework/cloud/stream/app/time/source/kafka/MultiOutputTimeSourceKafkaApplication.java

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package org.springframework.cloud.stream.app.time.source.rabbit;
+package org.springframework.cloud.stream.app.time.source.kafka;
 
 import java.util.Date;
 import java.util.function.Supplier;