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Posted to commits@maven.apache.org by kh...@apache.org on 2018/03/03 19:18:48 UTC

[maven-artifact-transfer] 01/01: [MSHARED-680] - Add null check for DependencyResolver/DependencyCollector/ProjectDeployer Interfaces

This is an automated email from the ASF dual-hosted git repository.

khmarbaise pushed a commit to branch MSHARED-680
in repository https://gitbox.apache.org/repos/asf/maven-artifact-transfer.git

commit 62d72f2e2a48e461a624e880e3ccd4f15d2a6be1
Author: Karl Heinz Marbaise <kh...@apache.org>
AuthorDate: Wed Feb 21 22:06:52 2018 +0100

    [MSHARED-680] - Add null check for DependencyResolver/DependencyCollector/ProjectDeployer Interfaces
---
 .gitignore                                         |   1 +
 .../dependencies/collect/DependencyCollector.java  |   6 ++
 .../internal/DefaultDependencyCollector.java       |  52 +++++++++-
 .../shared/project/deploy/ProjectDeployer.java     |  10 +-
 .../deploy/internal/DefaultProjectDeployer.java    |  95 +++++++++--------
 .../shared/project/install/ProjectInstaller.java   |  14 +--
 .../install/internal/DefaultProjectInstaller.java  |   3 +-
 .../internal/DefaultArtifactDeployerTest.java      |  12 ++-
 .../internal/DefaultArtifactInstallerTest.java     |   3 +-
 .../internal/DefaultDependencyCollectorTest.java   | 115 +++++++++++++++++++++
 .../DefaultDependencyCoordinateTest.java           |   1 +
 .../internal/DefaultProjectDeployerTest.java       |  82 +++++++++++++++
 .../internal/DefaultProjectInstallerTest.java      |  27 ++---
 13 files changed, 341 insertions(+), 80 deletions(-)

diff --git a/.gitignore b/.gitignore
index d0d7222..3578f45 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,5 +12,6 @@ out/
 .DS_Store
 /bootstrap
 /dependencies.xml
+/dependency-reduced-pom.xml
 .java-version
 dependency-reduced-pom.xml
diff --git a/src/main/java/org/apache/maven/shared/dependencies/collect/DependencyCollector.java b/src/main/java/org/apache/maven/shared/dependencies/collect/DependencyCollector.java
index c7d6783..ce996ed 100644
--- a/src/main/java/org/apache/maven/shared/dependencies/collect/DependencyCollector.java
+++ b/src/main/java/org/apache/maven/shared/dependencies/collect/DependencyCollector.java
@@ -40,6 +40,8 @@ public interface DependencyCollector
      * @param root {@link Dependency}
      * @return {@link CollectorResult}
      * @throws DependencyCollectorException in case of an error.
+     * @throws IllegalArgumentException in case of parameter <code>buildingRequest</code> is <code>null</code> or
+     *             parameter <code>root</code> is <code>null</code>.
      */
     CollectorResult collectDependencies( ProjectBuildingRequest buildingRequest, Dependency root )
         throws DependencyCollectorException;
@@ -50,6 +52,8 @@ public interface DependencyCollector
      * @return {@link CollectorResult}
      * @throws DependencyCollectorException in case of an error which can be a component lookup error or
      *  an error while trying to look up the dependencies.
+     * @throws IllegalArgumentException in case of parameter <code>buildingRequest</code> is <code>null</code> or
+     *             parameter <code>root</code> is <code>null</code>.
      */
     CollectorResult collectDependencies( ProjectBuildingRequest buildingRequest, DependableCoordinate root )
                     throws DependencyCollectorException;
@@ -60,6 +64,8 @@ public interface DependencyCollector
      * @return {@link CollectorResult}
      * @throws DependencyCollectorException in case of an error which can be a component lookup error or
      *  an error while trying to look up the dependencies.
+     * @throws IllegalArgumentException in case of parameter <code>buildingRequest</code> is <code>null</code> or
+     *             parameter <code>root</code> is <code>null</code>.
      */
     CollectorResult collectDependencies( ProjectBuildingRequest buildingRequest, Model root )
                     throws DependencyCollectorException;
diff --git a/src/main/java/org/apache/maven/shared/dependencies/collect/internal/DefaultDependencyCollector.java b/src/main/java/org/apache/maven/shared/dependencies/collect/internal/DefaultDependencyCollector.java
index 19bdc32..ed8f331 100644
--- a/src/main/java/org/apache/maven/shared/dependencies/collect/internal/DefaultDependencyCollector.java
+++ b/src/main/java/org/apache/maven/shared/dependencies/collect/internal/DefaultDependencyCollector.java
@@ -36,18 +36,21 @@ import org.codehaus.plexus.personality.plexus.lifecycle.phase.Contextualizable;
 
 /**
  * This DependencyCollector passes the request to the proper Maven 3.x implementation
- *  
+ * 
  * @author Robert Scholte
  */
 @Component( role = DependencyCollector.class, hint = "default" )
-public class DefaultDependencyCollector implements DependencyCollector, Contextualizable 
+public class DefaultDependencyCollector
+    implements DependencyCollector, Contextualizable
 {
     private PlexusContainer container;
-   
+
     @Override
     public CollectorResult collectDependencies( ProjectBuildingRequest buildingRequest, Dependency root )
         throws DependencyCollectorException
     {
+        validateParameters( buildingRequest, root );
+
         try
         {
             String hint = isMaven31() ? "maven31" : "maven3";
@@ -61,11 +64,13 @@ public class DefaultDependencyCollector implements DependencyCollector, Contextu
             throw new DependencyCollectorException( e.getMessage(), e );
         }
     }
-    
+
     @Override
     public CollectorResult collectDependencies( ProjectBuildingRequest buildingRequest, DependableCoordinate root )
         throws DependencyCollectorException
     {
+        validateParameters( buildingRequest, root );
+
         try
         {
             String hint = isMaven31() ? "maven31" : "maven3";
@@ -79,11 +84,13 @@ public class DefaultDependencyCollector implements DependencyCollector, Contextu
             throw new DependencyCollectorException( e.getMessage(), e );
         }
     }
-    
+
     @Override
     public CollectorResult collectDependencies( ProjectBuildingRequest buildingRequest, Model root )
         throws DependencyCollectorException
     {
+        validateParameters( buildingRequest, root );
+
         try
         {
             String hint = isMaven31() ? "maven31" : "maven3";
@@ -98,6 +105,41 @@ public class DefaultDependencyCollector implements DependencyCollector, Contextu
         }
     }
 
+    private void validateParameters( ProjectBuildingRequest buildingRequest, DependableCoordinate root )
+    {
+        validateBuildingRequest( buildingRequest );
+        if ( root == null )
+        {
+            throw new IllegalArgumentException( "The parameter root is not allowed to be null." );
+        }
+    }
+
+    private void validateParameters( ProjectBuildingRequest buildingRequest, Dependency root )
+    {
+        validateBuildingRequest( buildingRequest );
+        if ( root == null )
+        {
+            throw new IllegalArgumentException( "The parameter root is not allowed to be null." );
+        }
+    }
+
+    private void validateParameters( ProjectBuildingRequest buildingRequest, Model root )
+    {
+        validateBuildingRequest( buildingRequest );
+        if ( root == null )
+        {
+            throw new IllegalArgumentException( "The parameter root is not allowed to be null." );
+        }
+    }
+
+    private void validateBuildingRequest( ProjectBuildingRequest buildingRequest )
+    {
+        if ( buildingRequest == null )
+        {
+            throw new IllegalArgumentException( "The parameter buildingRequest is not allowed to be null." );
+        }
+    }
+
     /**
      * @return true if the current Maven version is Maven 3.1.
      */
diff --git a/src/main/java/org/apache/maven/shared/project/deploy/ProjectDeployer.java b/src/main/java/org/apache/maven/shared/project/deploy/ProjectDeployer.java
index 2c4519b..b09adeb 100644
--- a/src/main/java/org/apache/maven/shared/project/deploy/ProjectDeployer.java
+++ b/src/main/java/org/apache/maven/shared/project/deploy/ProjectDeployer.java
@@ -21,6 +21,7 @@ package org.apache.maven.shared.project.deploy;
 
 import org.apache.maven.artifact.repository.ArtifactRepository;
 import org.apache.maven.project.ProjectBuildingRequest;
+import org.apache.maven.shared.artifact.deploy.ArtifactDeployerException;
 import org.apache.maven.shared.project.NoFileAssignedException;
 
 /**
@@ -55,11 +56,12 @@ public interface ProjectDeployer
      * @param request {@link ProjectDeployerRequest}
      * @param artifactRepository {@link ArtifactRepository}
      * @throws NoFileAssignedException In case of missing file which has not been assigned to project.
-     * @throws IllegalArgumentException in case of artifact is not correctly assigned.
+     * @throws ArtifactDeployerException in case of artifact could not correctly deployed.
+     * @throws IllegalArgumentException in case <code>buildingRequest</code> is <code>null</code>, <code>request</code>
+     *             is <code>null</code> or <code>artifactRepository</code> is <code>null</code>.
      */
     void deploy( ProjectBuildingRequest buildingRequest, ProjectDeployerRequest request,
-                        ArtifactRepository artifactRepository )
-        throws NoFileAssignedException, IllegalArgumentException;
-
+                 ArtifactRepository artifactRepository )
+        throws NoFileAssignedException, ArtifactDeployerException;
 
 }
diff --git a/src/main/java/org/apache/maven/shared/project/deploy/internal/DefaultProjectDeployer.java b/src/main/java/org/apache/maven/shared/project/deploy/internal/DefaultProjectDeployer.java
index e1a14af..b4d88ff 100644
--- a/src/main/java/org/apache/maven/shared/project/deploy/internal/DefaultProjectDeployer.java
+++ b/src/main/java/org/apache/maven/shared/project/deploy/internal/DefaultProjectDeployer.java
@@ -54,24 +54,19 @@ public class DefaultProjectDeployer
     private ArtifactDeployer deployer;
 
     /**
-     * This will deploy a single project which may contain several artifacts into the appropriate remote repository.
-     * 
-     * @param buildingRequest {@link ProjectBuildingRequest}
-     * @param request {@link ProjectDeployerRequest}
-     * @param artifactRepository {@link ArtifactRepository}
-     * @throws IllegalArgumentException in case of artifact is not correctly assigned.
-     * @throws NoFileAssignedException In case no file has been assigned to main file.
+     * {@inheritDoc}
      */
-    public void deploy( ProjectBuildingRequest buildingRequest, ProjectDeployerRequest request,
+    public void deploy( ProjectBuildingRequest buildingRequest, ProjectDeployerRequest projectDeployerRequest,
                         ArtifactRepository artifactRepository )
-        throws NoFileAssignedException, IllegalArgumentException
+        throws NoFileAssignedException, IllegalArgumentException, ArtifactDeployerException
     {
+        validateParameters( buildingRequest, projectDeployerRequest, artifactRepository );
 
-        Artifact artifact = request.getProject().getArtifact();
-        String packaging = request.getProject().getPackaging();
-        File pomFile = request.getProject().getFile();
+        Artifact artifact = projectDeployerRequest.getProject().getArtifact();
+        String packaging = projectDeployerRequest.getProject().getPackaging();
+        File pomFile = projectDeployerRequest.getProject().getFile();
 
-        List<Artifact> attachedArtifacts = request.getProject().getAttachedArtifacts();
+        List<Artifact> attachedArtifacts = projectDeployerRequest.getProject().getAttachedArtifacts();
 
         // Deploy the POM
         boolean isPomArtifact = "pom".equals( packaging );
@@ -85,54 +80,68 @@ public class DefaultProjectDeployer
             artifact.addMetadata( metadata );
         }
 
-        if ( request.isUpdateReleaseInfo() )
+        // FIXME: It does not make sense to set an artifact explicitly to a "Release"
+        // cause this should be choosen only by the not existing of "-SNAPSHOT" in the
+        // version.
+        if ( projectDeployerRequest.isUpdateReleaseInfo() )
         {
             artifact.setRelease( true );
         }
 
         artifact.setRepository( artifactRepository );
 
-        int retryFailedDeploymentCount = request.getRetryFailedDeploymentCount();
+        int retryFailedDeploymentCount = projectDeployerRequest.getRetryFailedDeploymentCount();
 
-        try
+        List<Artifact> deployableArtifacts = new ArrayList<Artifact>();
+        if ( isPomArtifact )
+        {
+            deployableArtifacts.add( artifact );
+        }
+        else
         {
-            List<Artifact> deployableArtifacts = new ArrayList<Artifact>();
-            if ( isPomArtifact )
+            File file = artifact.getFile();
+
+            if ( file != null && file.isFile() )
             {
                 deployableArtifacts.add( artifact );
             }
-            else
+            else if ( !attachedArtifacts.isEmpty() )
             {
-                File file = artifact.getFile();
-
-                if ( file != null && file.isFile() )
-                {
-                    deployableArtifacts.add( artifact );
-                }
-                else if ( !attachedArtifacts.isEmpty() )
-                {
-                    // TODO: Reconsider this exception? Better Exception type?
-                    throw new NoFileAssignedException( "The packaging plugin for this project did not assign "
-                        + "a main file to the project but it has attachments. Change packaging to 'pom'." );
-                }
-                else
-                {
-                    // TODO: Reconsider this exception? Better Exception type?
-                    throw new NoFileAssignedException( "The packaging for this project did not assign "
-                        + "a file to the build artifact" );
-                }
+                // TODO: Reconsider this exception? Better Exception type?
+                throw new NoFileAssignedException( "The packaging plugin for this project did not assign "
+                    + "a main file to the project but it has attachments. Change packaging to 'pom'." );
             }
-
-            for ( Artifact attached : attachedArtifacts )
+            else
             {
-                deployableArtifacts.add( attached );
+                // TODO: Reconsider this exception? Better Exception type?
+                throw new NoFileAssignedException( "The packaging for this project did not assign "
+                    + "a file to the build artifact" );
             }
+        }
+
+        for ( Artifact attached : attachedArtifacts )
+        {
+            deployableArtifacts.add( attached );
+        }
 
-            deploy( buildingRequest, deployableArtifacts, artifactRepository, retryFailedDeploymentCount );
+        deploy( buildingRequest, deployableArtifacts, artifactRepository, retryFailedDeploymentCount );
+    }
+
+    private void validateParameters( ProjectBuildingRequest buildingRequest,
+                                     ProjectDeployerRequest projectDeployerRequest,
+                                     ArtifactRepository artifactRepository )
+    {
+        if ( buildingRequest == null )
+        {
+            throw new IllegalArgumentException( "The parameter buildingRequest is not allowed to be null." );
+        }
+        if ( projectDeployerRequest == null )
+        {
+            throw new IllegalArgumentException( "The parameter projectDeployerRequest is not allowed to be null." );
         }
-        catch ( ArtifactDeployerException e )
+        if ( artifactRepository == null )
         {
-            throw new IllegalArgumentException( e.getMessage(), e );
+            throw new IllegalArgumentException( "The parameter artifactRepository is not allowed to be null." );
         }
     }
 
diff --git a/src/main/java/org/apache/maven/shared/project/install/ProjectInstaller.java b/src/main/java/org/apache/maven/shared/project/install/ProjectInstaller.java
index 0ddc46c..0fab22e 100644
--- a/src/main/java/org/apache/maven/shared/project/install/ProjectInstaller.java
+++ b/src/main/java/org/apache/maven/shared/project/install/ProjectInstaller.java
@@ -54,15 +54,15 @@ public interface ProjectInstaller
      *  installer.install( session.getProjectBuildingRequest(), pir );
      * </pre>
      * 
-     * To set a different local repository than the current one in the Maven session, you can inject an instance of
-     * the <code>RepositoryManager</code> and set the path to the local repository, called 
-     * <code>localRepositoryPath</code>, as such:
+     * To set a different local repository than the current one in the Maven session, you can inject an instance of the
+     * <code>RepositoryManager</code> and set the path to the local repository, called <code>localRepositoryPath</code>,
+     * as such:
      * 
      * <pre class="java">
-     *  &#64;Component
-     *  private RepositoryManager repositoryManager;
+     * &#64;Component
+     * private RepositoryManager repositoryManager;
      * 
-     *  buildingRequest = repositoryManager.setLocalRepositoryBasedir( buildingRequest, localRepositoryPath );
+     * buildingRequest = repositoryManager.setLocalRepositoryBasedir( buildingRequest, localRepositoryPath );
      * </pre>
      * 
      * @param projectBuildingRequest {@link ProjectBuildingRequest}
@@ -74,6 +74,6 @@ public interface ProjectInstaller
      *             parameter <code>projectInstallerRequest</code> is <code>null</code>.
      */
     void install( ProjectBuildingRequest projectBuildingRequest, ProjectInstallerRequest projectInstallerRequest )
-        throws IOException, ArtifactInstallerException, NoFileAssignedException, IllegalArgumentException;
+        throws IOException, ArtifactInstallerException, NoFileAssignedException;
 
 }
diff --git a/src/main/java/org/apache/maven/shared/project/install/internal/DefaultProjectInstaller.java b/src/main/java/org/apache/maven/shared/project/install/internal/DefaultProjectInstaller.java
index 5d277d3..799790a 100644
--- a/src/main/java/org/apache/maven/shared/project/install/internal/DefaultProjectInstaller.java
+++ b/src/main/java/org/apache/maven/shared/project/install/internal/DefaultProjectInstaller.java
@@ -71,7 +71,6 @@ public class DefaultProjectInstaller
     public void install( ProjectBuildingRequest buildingRequest, ProjectInstallerRequest installerRequest )
         throws IOException, ArtifactInstallerException, NoFileAssignedException, IllegalArgumentException
     {
-
         validateParameters( buildingRequest, installerRequest );
         MavenProject project = installerRequest.getProject();
         boolean createChecksum = installerRequest.isCreateChecksum();
@@ -157,7 +156,7 @@ public class DefaultProjectInstaller
             throw new IllegalArgumentException( "The parameter installerRequest is not allowed to be null." );
         }
     }
-    
+
     /**
      * Installs the checksums for the specified artifact if this has been enabled in the plugin configuration. This
      * method creates checksums for files that have already been installed to the local repo to account for on-the-fly
diff --git a/src/test/java/org/apache/maven/shared/artifact/deploy/internal/DefaultArtifactDeployerTest.java b/src/test/java/org/apache/maven/shared/artifact/deploy/internal/DefaultArtifactDeployerTest.java
index cfd9587..5e17f60 100644
--- a/src/test/java/org/apache/maven/shared/artifact/deploy/internal/DefaultArtifactDeployerTest.java
+++ b/src/test/java/org/apache/maven/shared/artifact/deploy/internal/DefaultArtifactDeployerTest.java
@@ -64,9 +64,10 @@ public class DefaultArtifactDeployerTest
     public void deployShouldReturnIllegalArgumentExceptionForSecondParameterWithNull()
         throws ArtifactDeployerException
     {
+        ProjectBuildingRequest pbr = mock( ProjectBuildingRequest.class );
+
         thrown.expect( IllegalArgumentException.class );
         thrown.expectMessage( "The parameter mavenArtifacts is not allowed to be null." );
-        ProjectBuildingRequest pbr = mock( ProjectBuildingRequest.class );
         dap.deploy( pbr, null );
     }
 
@@ -74,9 +75,10 @@ public class DefaultArtifactDeployerTest
     public void deployShouldReturnIllegalArgumentExceptionForSecondParameterWithEmpty()
         throws ArtifactDeployerException
     {
+        ProjectBuildingRequest pbr = mock( ProjectBuildingRequest.class );
+
         thrown.expect( IllegalArgumentException.class );
         thrown.expectMessage( "The collection mavenArtifacts is not allowed to be empty." );
-        ProjectBuildingRequest pbr = mock( ProjectBuildingRequest.class );
         dap.deploy( pbr, Collections.<Artifact>emptyList() );
     }
 
@@ -94,9 +96,10 @@ public class DefaultArtifactDeployerTest
     public void deploy3ParametersShouldReturnIllegalArgumentExceptionForSecondParameterWithNull()
         throws ArtifactDeployerException
     {
+        ProjectBuildingRequest pbr = mock( ProjectBuildingRequest.class );
+
         thrown.expect( IllegalArgumentException.class );
         thrown.expectMessage( "The parameter mavenArtifacts is not allowed to be null." );
-        ProjectBuildingRequest pbr = mock( ProjectBuildingRequest.class );
         dap.deploy( pbr, null, null );
     }
 
@@ -104,9 +107,10 @@ public class DefaultArtifactDeployerTest
     public void deploy3ParametersShouldReturnIllegalArgumentExceptionForSecondParameterWithEmpty()
         throws ArtifactDeployerException
     {
+        ProjectBuildingRequest pbr = mock( ProjectBuildingRequest.class );
+
         thrown.expect( IllegalArgumentException.class );
         thrown.expectMessage( "The collection mavenArtifacts is not allowed to be empty." );
-        ProjectBuildingRequest pbr = mock( ProjectBuildingRequest.class );
         dap.deploy( pbr, null, Collections.<Artifact>emptyList() );
     }
 
diff --git a/src/test/java/org/apache/maven/shared/artifact/install/internal/DefaultArtifactInstallerTest.java b/src/test/java/org/apache/maven/shared/artifact/install/internal/DefaultArtifactInstallerTest.java
index 144f33f..d26ed01 100644
--- a/src/test/java/org/apache/maven/shared/artifact/install/internal/DefaultArtifactInstallerTest.java
+++ b/src/test/java/org/apache/maven/shared/artifact/install/internal/DefaultArtifactInstallerTest.java
@@ -45,8 +45,7 @@ public class DefaultArtifactInstallerTest
     public ExpectedException thrown = ExpectedException.none();
 
     @Test
-    public void installShouldReturnIllegalArgumentExceptionForFirstParameterWithNull()
-        throws ArtifactInstallerException
+    public void installShouldReturnIllegalArgumentExceptionForFirstParameterWithNull() throws IllegalArgumentException, ArtifactInstallerException
     {
         DefaultArtifactInstaller dai = new DefaultArtifactInstaller();
 
diff --git a/src/test/java/org/apache/maven/shared/dependencies/collect/internal/DefaultDependencyCollectorTest.java b/src/test/java/org/apache/maven/shared/dependencies/collect/internal/DefaultDependencyCollectorTest.java
new file mode 100644
index 0000000..5e48299
--- /dev/null
+++ b/src/test/java/org/apache/maven/shared/dependencies/collect/internal/DefaultDependencyCollectorTest.java
@@ -0,0 +1,115 @@
+package org.apache.maven.shared.dependencies.collect.internal;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import static org.mockito.Mockito.mock;
+
+import org.apache.maven.model.Dependency;
+import org.apache.maven.model.Model;
+import org.apache.maven.project.ProjectBuildingRequest;
+import org.apache.maven.shared.artifact.deploy.ArtifactDeployerException;
+import org.apache.maven.shared.artifact.resolve.ArtifactResolverException;
+import org.apache.maven.shared.dependencies.DependableCoordinate;
+import org.apache.maven.shared.dependencies.collect.DependencyCollector;
+import org.apache.maven.shared.dependencies.collect.DependencyCollectorException;
+import org.apache.maven.shared.dependencies.collect.internal.DefaultDependencyCollector;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+public class DefaultDependencyCollectorTest
+{
+
+    @Rule
+    public ExpectedException thrown = ExpectedException.none();
+
+    private DependencyCollector dc;
+
+    @Before
+    public void setUp()
+    {
+        dc = new DefaultDependencyCollector();
+    }
+
+    @Test
+    public void collectDependenciesWithDependableCoordinatShouldFailWithIAEWhenParameterBuildingRequestIsNull()
+        throws ArtifactDeployerException, ArtifactResolverException, DependencyCollectorException
+    {
+        thrown.expect( IllegalArgumentException.class );
+        thrown.expectMessage( "The parameter buildingRequest is not allowed to be null." );
+
+        dc.collectDependencies( null, (DependableCoordinate) null );
+    }
+
+    @Test
+    public void collectDependenciesWithDependableCoordinatShouldFailWithIAEWhenParameterRootIsNull()
+        throws ArtifactDeployerException, ArtifactResolverException, DependencyCollectorException
+    {
+        thrown.expect( IllegalArgumentException.class );
+        thrown.expectMessage( "The parameter root is not allowed to be null." );
+
+        ProjectBuildingRequest request = mock( ProjectBuildingRequest.class );
+        dc.collectDependencies( request, (DependableCoordinate) null );
+    }
+
+    @Test
+    public void collectDependenciesWithDependencyShouldFailWithIAEWhenParameterBuildingRequestIsNull()
+        throws ArtifactDeployerException, ArtifactResolverException, DependencyCollectorException
+    {
+        thrown.expect( IllegalArgumentException.class );
+        thrown.expectMessage( "The parameter buildingRequest is not allowed to be null." );
+
+        dc.collectDependencies( null, (Dependency) null );
+    }
+
+    @Test
+    public void collectDependenciesWithDependencyShouldFailWithIAEWhenParameterRootIsNull()
+        throws ArtifactDeployerException, ArtifactResolverException, DependencyCollectorException
+    {
+        thrown.expect( IllegalArgumentException.class );
+        thrown.expectMessage( "The parameter root is not allowed to be null." );
+
+        ProjectBuildingRequest request = mock( ProjectBuildingRequest.class );
+        dc.collectDependencies( request, (Dependency) null );
+    }
+
+    @Test
+    public void collectDependenciesWithModelShouldFailWithIAEWhenParameterBuildingRequestIsNull()
+        throws ArtifactDeployerException, ArtifactResolverException, DependencyCollectorException
+    {
+        thrown.expect( IllegalArgumentException.class );
+        thrown.expectMessage( "The parameter buildingRequest is not allowed to be null." );
+
+        dc.collectDependencies( null, (Model) null );
+    }
+
+    @Test
+    public void collectDependenciesWithModelShouldFailWithIAEWhenParameterRootIsNull()
+        throws ArtifactDeployerException, ArtifactResolverException, DependencyCollectorException
+    {
+        thrown.expect( IllegalArgumentException.class );
+        thrown.expectMessage( "The parameter root is not allowed to be null." );
+
+        ProjectBuildingRequest request = mock( ProjectBuildingRequest.class );
+        dc.collectDependencies( request, (Model) null );
+    }
+
+}
diff --git a/src/test/java/org/apache/maven/shared/dependency/DefaultDependencyCoordinateTest.java b/src/test/java/org/apache/maven/shared/dependency/DefaultDependencyCoordinateTest.java
index a52d055..f3d00ea 100644
--- a/src/test/java/org/apache/maven/shared/dependency/DefaultDependencyCoordinateTest.java
+++ b/src/test/java/org/apache/maven/shared/dependency/DefaultDependencyCoordinateTest.java
@@ -18,6 +18,7 @@ package org.apache.maven.shared.dependency;
  * specific language governing permissions and limitations
  * under the License.
  */
+
 import static org.junit.Assert.assertEquals;
 
 import org.apache.maven.shared.dependencies.DefaultDependableCoordinate;
diff --git a/src/test/java/org/apache/maven/shared/project/deploy/internal/DefaultProjectDeployerTest.java b/src/test/java/org/apache/maven/shared/project/deploy/internal/DefaultProjectDeployerTest.java
new file mode 100644
index 0000000..2d54a24
--- /dev/null
+++ b/src/test/java/org/apache/maven/shared/project/deploy/internal/DefaultProjectDeployerTest.java
@@ -0,0 +1,82 @@
+package org.apache.maven.shared.project.deploy.internal;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import static org.mockito.Mockito.mock;
+
+import org.apache.maven.project.ProjectBuildingRequest;
+import org.apache.maven.shared.artifact.deploy.ArtifactDeployerException;
+import org.apache.maven.shared.project.NoFileAssignedException;
+import org.apache.maven.shared.project.deploy.ProjectDeployer;
+import org.apache.maven.shared.project.deploy.ProjectDeployerRequest;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+
+/**
+ * Check the parameter contracts which have been made based on the interface {@link ProjectDeployer}.
+ * 
+ * @author Karl Heinz Marbaise <a href="mailto:khmarbaise@apache.org">khmabaise@apache.org</a>
+ */
+public class DefaultProjectDeployerTest
+{
+    @Rule
+    public ExpectedException expectedException = ExpectedException.none();
+
+    @Test
+    public void deployShouldFailWithIAEWhileBuildingRequestIsNull()
+        throws IllegalArgumentException, NoFileAssignedException, ArtifactDeployerException
+    {
+        ProjectDeployer dpi = new DefaultProjectDeployer();
+
+        expectedException.expect( IllegalArgumentException.class );
+        expectedException.expectMessage( "The parameter buildingRequest is not allowed to be null." );
+
+        dpi.deploy( null, null, null );
+    }
+
+    @Test
+    public void deployShouldFailWithIAEWhileProjectDeployerRequestIsNull()
+        throws IllegalArgumentException, NoFileAssignedException, ArtifactDeployerException
+    {
+        ProjectDeployer dpi = new DefaultProjectDeployer();
+
+        expectedException.expect( IllegalArgumentException.class );
+        expectedException.expectMessage( "The parameter projectDeployerRequest is not allowed to be null." );
+
+        ProjectBuildingRequest pbr = mock( ProjectBuildingRequest.class );
+        dpi.deploy( pbr, null, null );
+    }
+
+    @Test
+    public void deployShouldFailWithIAEWhileArtifactRepositoryIsNull()
+        throws IllegalArgumentException, NoFileAssignedException, ArtifactDeployerException
+    {
+        ProjectDeployer dpi = new DefaultProjectDeployer();
+
+        expectedException.expect( IllegalArgumentException.class );
+        expectedException.expectMessage( "The parameter artifactRepository is not allowed to be null." );
+
+        ProjectBuildingRequest pbr = mock( ProjectBuildingRequest.class );
+        ProjectDeployerRequest pdr = mock( ProjectDeployerRequest.class );
+        dpi.deploy( pbr, pdr, null );
+    }
+
+}
diff --git a/src/test/java/org/apache/maven/shared/project/install/internal/DefaultProjectInstallerTest.java b/src/test/java/org/apache/maven/shared/project/install/internal/DefaultProjectInstallerTest.java
index 7d1cc8e..f5d65a3 100644
--- a/src/test/java/org/apache/maven/shared/project/install/internal/DefaultProjectInstallerTest.java
+++ b/src/test/java/org/apache/maven/shared/project/install/internal/DefaultProjectInstallerTest.java
@@ -38,32 +38,33 @@ import org.junit.rules.ExpectedException;
  */
 public class DefaultProjectInstallerTest
 {
+
     @Rule
-    public ExpectedException thrown = ExpectedException.none();
+    public ExpectedException expectedException = ExpectedException.none();
 
     @Test
-    public void installShouldReturnIllegalArgumentExceptionWhereBuildingRequestIsNull()
+    public void installShouldFailWithIAEWhileBuildingRequestIsNull()
         throws IOException, ArtifactInstallerException, NoFileAssignedException
     {
-        DefaultProjectInstaller dai = new DefaultProjectInstaller();
+        ProjectInstaller dpi = new DefaultProjectInstaller();
+
+        expectedException.expect( IllegalArgumentException.class );
+        expectedException.expectMessage( "The parameter buildingRequest is not allowed to be null." );
 
-        thrown.expect( IllegalArgumentException.class );
-        thrown.expectMessage( "The parameter buildingRequest is not allowed to be null." );
-        dai.install( null, null );
+        dpi.install( null, null );
     }
 
     @Test
-    public void installShouldReturnIllegalArgumentExceptionWhereInstallerRequestIsNull()
+    public void installShouldFailWithIAEWhileProjectInstallerRequestIsNull()
         throws IOException, ArtifactInstallerException, NoFileAssignedException
     {
-        DefaultProjectInstaller dai = new DefaultProjectInstaller();
+        ProjectInstaller dpi = new DefaultProjectInstaller();
 
-        thrown.expect( IllegalArgumentException.class );
-        thrown.expectMessage( "The parameter installerRequest is not allowed to be null." );
+        expectedException.expect( IllegalArgumentException.class );
+        expectedException.expectMessage( "The parameter installerRequest is not allowed to be null." );
         ProjectBuildingRequest pbr = mock( ProjectBuildingRequest.class );
-        dai.install( pbr, null );
-    }
-
 
+        dpi.install( pbr, null );
+    }
 
 }

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