Merge pull request #34 from apache/deps

declare dependencies
diff --git a/pom.xml b/pom.xml
index b46adf4..b3cb802 100644
--- a/pom.xml
+++ b/pom.xml
@@ -109,7 +109,26 @@
       <artifactId>maven-model</artifactId>
       <version>${mavenVersion}</version>
     </dependency>
-
+    <dependency>
+      <groupId>org.apache.maven</groupId>
+      <artifactId>maven-settings</artifactId>
+      <version>${mavenVersion}</version>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.maven.shared</groupId>
+      <artifactId>maven-shared-utils</artifactId>
+      <version>3.3.3</version>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.maven</groupId>
+      <artifactId>maven-aether-provider</artifactId>
+      <version>3.0</version>
+    </dependency>
+    <dependency>
+      <groupId>org.sonatype.sisu</groupId>
+      <artifactId>sisu-inject-plexus</artifactId>
+      <version>1.4.2</version>
+    </dependency>
     <dependency>
       <groupId>org.apache.maven.shared</groupId>
       <artifactId>maven-common-artifact-filters</artifactId>
@@ -175,18 +194,6 @@
       <scope>test</scope>
     </dependency>
     <dependency>
-      <groupId>org.apache.maven.plugin-testing</groupId>
-      <artifactId>maven-plugin-testing-tools</artifactId>
-      <version>2.1</version>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
-      <groupId>org.apache.maven.plugin-testing</groupId>
-      <artifactId>maven-test-tools</artifactId>
-      <version>2.1</version>
-      <scope>test</scope>
-    </dependency>
-    <dependency>
       <groupId>org.mockito</groupId>
       <artifactId>mockito-core</artifactId>
       <version>2.28.2</version>
@@ -203,7 +210,7 @@
       <groupId>jaxen</groupId>
       <artifactId>jaxen</artifactId>
       <version>1.2.0</version>
-      <scope>runtime</scope>
+      <scope>test</scope>
     </dependency>    
     
     <dependency>