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Posted to commits@maven.apache.org by hb...@apache.org on 2018/12/27 00:29:20 UTC

[maven] branch MNG-6533-2 created (now efd8164)

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

hboutemy pushed a change to branch MNG-6533-2
in repository https://gitbox.apache.org/repos/asf/maven.git.


      at efd8164  [MNG-6533] ProjectBuilder report ModelProblem instead of Exception

This branch includes the following new commits:

     new 932b03d  refactoring: extracted initParent() method
     new 184c78d  [MNG-6533] Test: ProjectBuildingException miss reference to MavenProject
     new c41962a  [MNG-6533] Prefer passing the interim project in ProjectBuildingResult
     new efd8164  [MNG-6533] ProjectBuilder report ModelProblem instead of Exception

The 4 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "add" were already present in the repository and have only
been added to this reference.



[maven] 03/04: [MNG-6533] Prefer passing the interim project in ProjectBuildingResult

Posted by hb...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

hboutemy pushed a commit to branch MNG-6533-2
in repository https://gitbox.apache.org/repos/asf/maven.git

commit c41962abc7a8c04f162eaf51b171a4abd47e1159
Author: Mickael Istria <mi...@redhat.com>
AuthorDate: Thu Nov 29 22:21:29 2018 +0100

    [MNG-6533] Prefer passing the interim project in ProjectBuildingResult
    
    Initialize the interim project with "simple" items (ie do not build
    not reference parent if it's not yet in the projectIndex) and returns
    it when installation fails further.
    This give a partial validation of the file, pretty convenient in IDEs.
---
 .../maven/project/DefaultProjectBuilder.java       | 185 ++++++++++++---------
 1 file changed, 103 insertions(+), 82 deletions(-)

diff --git a/maven-core/src/main/java/org/apache/maven/project/DefaultProjectBuilder.java b/maven-core/src/main/java/org/apache/maven/project/DefaultProjectBuilder.java
index 0d2887b..5e8626a 100644
--- a/maven-core/src/main/java/org/apache/maven/project/DefaultProjectBuilder.java
+++ b/maven-core/src/main/java/org/apache/maven/project/DefaultProjectBuilder.java
@@ -172,8 +172,8 @@ public class DefaultProjectBuilder
 
                 modelProblems = result.getProblems();
 
-                initProject( project, Collections.<String, MavenProject>emptyMap(), result,
-                             new HashMap<File, Boolean>(), projectBuildingRequest );
+                initProject( project, Collections.<String, MavenProject>emptyMap(), true,
+                             result, new HashMap<File, Boolean>(), projectBuildingRequest );
             }
             else if ( projectBuildingRequest.isResolveDependencies() )
             {
@@ -418,6 +418,7 @@ public class DefaultProjectBuilder
         ModelBuildingRequest request = getModelBuildingRequest( config );
 
         MavenProject project = new MavenProject();
+        project.setFile( pomFile );
 
         request.setPomFile( pomFile );
         request.setTwoPhaseBuilding( true );
@@ -427,106 +428,116 @@ public class DefaultProjectBuilder
             new DefaultModelBuildingListener( project, projectBuildingHelper, config.request );
         request.setModelBuildingListener( listener );
 
+        ModelBuildingResult result;
         try
         {
-            ModelBuildingResult result = modelBuilder.build( request );
+            result = modelBuilder.build( request );
+        }
+        catch ( ModelBuildingException e )
+        {
+            result = e.getResult();
+            if ( result == null || result.getEffectiveModel() == null )
+            {
+                 results.add( new DefaultProjectBuildingResult( e.getModelId(), pomFile, e.getProblems() ) );
 
-            Model model = result.getEffectiveModel();
+                 return false;
+            }
+            // validation error, continue project building and delay failing to help IDEs
+            // result.getProblems().addAll(e.getProblems()) ?
+            noErrors = false;
+        }
 
-            projectIndex.put( result.getModelIds().get( 0 ), project );
+        Model model = result.getEffectiveModel();
+        // first pass: build without building parent.
+        initProject( project, projectIndex, false, result, new HashMap<File, Boolean>( 0 ), config.request );
 
-            InterimResult interimResult = new InterimResult( pomFile, request, result, listener, isRoot );
-            interimResults.add( interimResult );
+        projectIndex.put( result.getModelIds().get( 0 ), project );
 
-            if ( recursive && !model.getModules().isEmpty() )
-            {
-                File basedir = pomFile.getParentFile();
+        InterimResult interimResult = new InterimResult( pomFile, request, result, listener, isRoot );
+        interimResults.add( interimResult );
+
+        if ( recursive && !model.getModules().isEmpty() )
+        {
+            File basedir = pomFile.getParentFile();
 
-                List<File> moduleFiles = new ArrayList<>();
+            List<File> moduleFiles = new ArrayList<>();
 
-                for ( String module : model.getModules() )
+            for ( String module : model.getModules() )
+            {
+                if ( StringUtils.isEmpty( module ) )
                 {
-                    if ( StringUtils.isEmpty( module ) )
-                    {
-                        continue;
-                    }
+                    continue;
+                }
 
-                    module = module.replace( '\\', File.separatorChar ).replace( '/', File.separatorChar );
+                module = module.replace( '\\', File.separatorChar ).replace( '/', File.separatorChar );
 
-                    File moduleFile = new File( basedir, module );
+                File moduleFile = new File( basedir, module );
 
-                    if ( moduleFile.isDirectory() )
-                    {
-                        moduleFile = modelProcessor.locatePom( moduleFile );
-                    }
+                if ( moduleFile.isDirectory() )
+                {
+                    moduleFile = modelProcessor.locatePom( moduleFile );
+                }
 
-                    if ( !moduleFile.isFile() )
-                    {
-                        ModelProblem problem =
-                            new DefaultModelProblem( "Child module " + moduleFile + " of " + pomFile
-                                + " does not exist", ModelProblem.Severity.ERROR, ModelProblem.Version.BASE, model, -1,
-                                                     -1, null );
-                        result.getProblems().add( problem );
+                if ( !moduleFile.isFile() )
+                {
+                    ModelProblem problem =
+                        new DefaultModelProblem( "Child module " + moduleFile + " of " + pomFile
+                            + " does not exist", ModelProblem.Severity.ERROR, ModelProblem.Version.BASE, model, -1,
+                                                 -1, null );
+                    result.getProblems().add( problem );
 
-                        noErrors = false;
+                    noErrors = false;
 
-                        continue;
-                    }
+                    continue;
+                }
 
-                    if ( Os.isFamily( Os.FAMILY_WINDOWS ) )
+                if ( Os.isFamily( Os.FAMILY_WINDOWS ) )
+                {
+                    // we don't canonicalize on unix to avoid interfering with symlinks
+                    try
                     {
-                        // we don't canonicalize on unix to avoid interfering with symlinks
-                        try
-                        {
-                            moduleFile = moduleFile.getCanonicalFile();
-                        }
-                        catch ( IOException e )
-                        {
-                            moduleFile = moduleFile.getAbsoluteFile();
-                        }
+                        moduleFile = moduleFile.getCanonicalFile();
                     }
-                    else
+                    catch ( IOException e )
                     {
-                        moduleFile = new File( moduleFile.toURI().normalize() );
+                        moduleFile = moduleFile.getAbsoluteFile();
                     }
+                }
+                else
+                {
+                    moduleFile = new File( moduleFile.toURI().normalize() );
+                }
 
-                    if ( aggregatorFiles.contains( moduleFile ) )
+                if ( aggregatorFiles.contains( moduleFile ) )
+                {
+                    StringBuilder buffer = new StringBuilder( 256 );
+                    for ( File aggregatorFile : aggregatorFiles )
                     {
-                        StringBuilder buffer = new StringBuilder( 256 );
-                        for ( File aggregatorFile : aggregatorFiles )
-                        {
-                            buffer.append( aggregatorFile ).append( " -> " );
-                        }
-                        buffer.append( moduleFile );
-
-                        ModelProblem problem =
-                            new DefaultModelProblem( "Child module " + moduleFile + " of " + pomFile
-                                + " forms aggregation cycle " + buffer, ModelProblem.Severity.ERROR,
-                                                     ModelProblem.Version.BASE, model, -1, -1, null );
-                        result.getProblems().add( problem );
-
-                        noErrors = false;
-
-                        continue;
+                        buffer.append( aggregatorFile ).append( " -> " );
                     }
+                    buffer.append( moduleFile );
 
-                    moduleFiles.add( moduleFile );
-                }
+                    ModelProblem problem =
+                        new DefaultModelProblem( "Child module " + moduleFile + " of " + pomFile
+                            + " forms aggregation cycle " + buffer, ModelProblem.Severity.ERROR,
+                                                 ModelProblem.Version.BASE, model, -1, -1, null );
+                    result.getProblems().add( problem );
 
-                interimResult.modules = new ArrayList<>();
-
-                if ( !build( results, interimResult.modules, projectIndex, moduleFiles, aggregatorFiles, false,
-                             recursive, config ) )
-                {
                     noErrors = false;
+
+                    continue;
                 }
+
+                moduleFiles.add( moduleFile );
             }
-        }
-        catch ( ModelBuildingException e )
-        {
-            results.add( new DefaultProjectBuildingResult( e.getModelId(), pomFile, e.getProblems() ) );
 
-            noErrors = false;
+            interimResult.modules = new ArrayList<>();
+
+            if ( !build( results, interimResult.modules, projectIndex, moduleFiles, aggregatorFiles, false,
+                         recursive, config ) )
+            {
+                noErrors = false;
+            }
         }
 
         return noErrors;
@@ -579,12 +590,13 @@ public class DefaultProjectBuilder
 
         for ( InterimResult interimResult : interimResults )
         {
+            MavenProject project = interimResult.listener.getProject();
             try
             {
                 ModelBuildingResult result = modelBuilder.build( interimResult.request, interimResult.result );
 
-                MavenProject project = interimResult.listener.getProject();
-                initProject( project, projectIndex, result, profilesXmls, request );
+                // 2nd pass of initialization: resolve and build parent if necessary
+                initProject( project, projectIndex, true, result, profilesXmls, request );
 
                 List<MavenProject> modules = new ArrayList<>();
                 noErrors =
@@ -606,8 +618,16 @@ public class DefaultProjectBuilder
             }
             catch ( ModelBuildingException e )
             {
-                results.add( new DefaultProjectBuildingResult( e.getModelId(), interimResult.pomFile,
-                                                               e.getProblems() ) );
+                DefaultProjectBuildingResult result = null;
+                if ( project == null )
+                {
+                    result = new DefaultProjectBuildingResult( e.getModelId(), interimResult.pomFile, e.getProblems() );
+                }
+                else
+                {
+                    result = new DefaultProjectBuildingResult( project, e.getProblems(), null );
+                }
+                results.add( result );
 
                 noErrors = false;
             }
@@ -617,7 +637,8 @@ public class DefaultProjectBuilder
     }
 
     @SuppressWarnings( "checkstyle:methodlength" )
-    private void initProject( MavenProject project, Map<String, MavenProject> projects, ModelBuildingResult result,
+    private void initProject( MavenProject project, Map<String, MavenProject> projects,
+                              boolean buildParentIfNotExisting, ModelBuildingResult result,
                               Map<File, Boolean> profilesXmls, ProjectBuildingRequest projectBuildingRequest )
     {
         Model model = result.getEffectiveModel();
@@ -626,7 +647,7 @@ public class DefaultProjectBuilder
         project.setOriginalModel( result.getRawModel() );
         project.setFile( model.getPomFile() );
 
-        initParent( project, projects, result, projectBuildingRequest );
+        initParent( project, projects, buildParentIfNotExisting, result, projectBuildingRequest );
 
         Artifact projectArtifact =
             repositorySystem.createArtifact( project.getGroupId(), project.getArtifactId(), project.getVersion(), null,
@@ -803,8 +824,8 @@ public class DefaultProjectBuilder
         }
     }
 
-    private void initParent( MavenProject project, Map<String, MavenProject> projects, ModelBuildingResult result,
-                             ProjectBuildingRequest projectBuildingRequest )
+    private void initParent( MavenProject project, Map<String, MavenProject> projects, boolean buildParentIfNotExisting,
+                             ModelBuildingResult result, ProjectBuildingRequest projectBuildingRequest )
     {
         Model parentModel = result.getModelIds().size() > 1 && !result.getModelIds().get( 1 ).isEmpty()
                                 ? result.getRawModel( result.getModelIds().get( 1 ) )
@@ -823,7 +844,7 @@ public class DefaultProjectBuilder
             String parentModelId = result.getModelIds().get( 1 );
             File parentPomFile = result.getRawModel( parentModelId ).getPomFile();
             MavenProject parent = projects.get( parentModelId );
-            if ( parent == null )
+            if ( parent == null && buildParentIfNotExisting )
             {
                 //
                 // At this point the DefaultModelBuildingListener has fired and it populates the


[maven] 02/04: [MNG-6533] Test: ProjectBuildingException miss reference to MavenProject

Posted by hb...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

hboutemy pushed a commit to branch MNG-6533-2
in repository https://gitbox.apache.org/repos/asf/maven.git

commit 184c78d97a8b7c34588421f911b0affd0c9b3050
Author: Mickael Istria <mi...@redhat.com>
AuthorDate: Thu Nov 29 18:26:46 2018 +0100

    [MNG-6533] Test: ProjectBuildingException miss reference to MavenProject
---
 .../apache/maven/project/ProjectBuilderTest.java   | 40 ++++++++++++++++++++++
 .../resources/projects/artifactMissingVersion.xml  | 34 ++++++++++++++++++
 2 files changed, 74 insertions(+)

diff --git a/maven-core/src/test/java/org/apache/maven/project/ProjectBuilderTest.java b/maven-core/src/test/java/org/apache/maven/project/ProjectBuilderTest.java
index 18f22bd..d954fb3 100644
--- a/maven-core/src/test/java/org/apache/maven/project/ProjectBuilderTest.java
+++ b/maven-core/src/test/java/org/apache/maven/project/ProjectBuilderTest.java
@@ -27,6 +27,7 @@ import java.util.Properties;
 import org.apache.maven.AbstractCoreMavenComponentTestCase;
 import org.apache.maven.execution.MavenSession;
 import org.apache.maven.model.building.FileModelSource;
+import org.apache.maven.model.building.ModelBuildingRequest;
 import org.apache.maven.model.building.ModelSource;
 
 public class ProjectBuilderTest
@@ -126,4 +127,43 @@ public class ProjectBuilderTest
         assertEquals( 0, mavenProject.getArtifacts().size() );
     }
 
+    public void testReadErroneousMavenProjectContainsReference()
+        throws Exception
+    {
+        File pomFile = new File( "src/test/resources/projects/artifactMissingVersion.xml" ).getAbsoluteFile();
+        MavenSession mavenSession = createMavenSession( null );
+        ProjectBuildingRequest configuration = new DefaultProjectBuildingRequest();
+        configuration.setValidationLevel( ModelBuildingRequest.VALIDATION_LEVEL_MINIMAL );
+        configuration.setRepositorySession( mavenSession.getRepositorySession() );
+        org.apache.maven.project.ProjectBuilder projectBuilder =
+            lookup( org.apache.maven.project.ProjectBuilder.class );
+
+        // single project build entry point
+        try
+        {
+            projectBuilder.build( pomFile, configuration );
+        }
+        catch ( ProjectBuildingException ex )
+        {
+            assertEquals( 1, ex.getResults().size() );
+            MavenProject project = ex.getResults().get( 0 ).getProject();
+            assertNotNull( project );
+            assertEquals( "testArtifactMissingVersion", project.getArtifactId() );
+            assertEquals( pomFile, project.getFile() );
+        }
+
+        // multi projects build entry point
+        try
+        {
+            projectBuilder.build( Collections.singletonList( pomFile ), false, configuration );
+        }
+        catch ( ProjectBuildingException ex )
+        {
+            assertEquals( 1, ex.getResults().size() );
+            MavenProject project = ex.getResults().get( 0 ).getProject();
+            assertNotNull( project );
+            assertEquals( "testArtifactMissingVersion", project.getArtifactId() );
+            assertEquals( pomFile, project.getFile() );
+        }
+    }
 }
diff --git a/maven-core/src/test/resources/projects/artifactMissingVersion.xml b/maven-core/src/test/resources/projects/artifactMissingVersion.xml
new file mode 100644
index 0000000..b87aa28
--- /dev/null
+++ b/maven-core/src/test/resources/projects/artifactMissingVersion.xml
@@ -0,0 +1,34 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>markerTest</groupId>
+  <artifactId>testArtifactMissingVersion</artifactId>
+  <version>0.0.1-SNAPSHOT</version>
+
+  <dependencies>
+    <dependency>
+      <groupId>missing</groupId>
+      <artifactId>missing</artifactId>
+    </dependency>
+  </dependencies>
+  <build>
+    <plugins>
+      <plugin>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>2.0.2</version>
+      </plugin>
+      <plugin>
+        <artifactId>maven-jar-plugin</artifactId>
+        <version>2.2</version>
+      </plugin>
+      <plugin>
+        <artifactId>maven-resources-plugin</artifactId>
+        <version>2.4.1</version>
+      </plugin>
+      <plugin>
+        <artifactId>maven-surefire-plugin</artifactId>
+        <version>2.4.3</version>
+      </plugin>
+    </plugins>
+  </build>
+</project>


[maven] 04/04: [MNG-6533] ProjectBuilder report ModelProblem instead of Exception

Posted by hb...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

hboutemy pushed a commit to branch MNG-6533-2
in repository https://gitbox.apache.org/repos/asf/maven.git

commit efd8164bf2d1b05a989e9e00ca3b86dc76394326
Author: Mickael Istria <mi...@redhat.com>
AuthorDate: Fri Nov 30 11:28:03 2018 +0100

    [MNG-6533] ProjectBuilder report ModelProblem instead of Exception
    
    Sending ModelProblems allows to keep processing other pom files.
---
 .../maven/project/DefaultProjectBuilder.java       | 22 +++++++++++++++---
 .../apache/maven/project/ProjectBuilderTest.java   | 26 ++++++++++++++++++++++
 maven-core/src/test/resources/projects/badPom.xml  |  8 +++++++
 3 files changed, 53 insertions(+), 3 deletions(-)

diff --git a/maven-core/src/main/java/org/apache/maven/project/DefaultProjectBuilder.java b/maven-core/src/main/java/org/apache/maven/project/DefaultProjectBuilder.java
index 5e8626a..8710f8b 100644
--- a/maven-core/src/main/java/org/apache/maven/project/DefaultProjectBuilder.java
+++ b/maven-core/src/main/java/org/apache/maven/project/DefaultProjectBuilder.java
@@ -448,8 +448,16 @@ public class DefaultProjectBuilder
         }
 
         Model model = result.getEffectiveModel();
-        // first pass: build without building parent.
-        initProject( project, projectIndex, false, result, new HashMap<File, Boolean>( 0 ), config.request );
+        try
+        {
+            // first pass: build without building parent.
+            initProject( project, projectIndex, false, result, new HashMap<File, Boolean>( 0 ), config.request );
+        }
+        catch ( Exception e )
+        {
+            result.getProblems().add( new DefaultModelProblem( null, ModelProblem.Severity.ERROR, null, model, -1, -1,
+                  e ) );
+        }
 
         projectIndex.put( result.getModelIds().get( 0 ), project );
 
@@ -596,7 +604,15 @@ public class DefaultProjectBuilder
                 ModelBuildingResult result = modelBuilder.build( interimResult.request, interimResult.result );
 
                 // 2nd pass of initialization: resolve and build parent if necessary
-                initProject( project, projectIndex, true, result, profilesXmls, request );
+                try
+                {
+                    initProject( project, projectIndex, true, result, profilesXmls, request );
+                }
+                catch ( Exception e )
+                {
+                    result.getProblems().add( new DefaultModelProblem( null, ModelProblem.Severity.ERROR, null,
+                            result.getEffectiveModel(), -1, -1, e ) );
+                }
 
                 List<MavenProject> modules = new ArrayList<>();
                 noErrors =
diff --git a/maven-core/src/test/java/org/apache/maven/project/ProjectBuilderTest.java b/maven-core/src/test/java/org/apache/maven/project/ProjectBuilderTest.java
index d954fb3..e52c9ce 100644
--- a/maven-core/src/test/java/org/apache/maven/project/ProjectBuilderTest.java
+++ b/maven-core/src/test/java/org/apache/maven/project/ProjectBuilderTest.java
@@ -166,4 +166,30 @@ public class ProjectBuilderTest
             assertEquals( pomFile, project.getFile() );
         }
     }
+
+    public void testReadInvalidPom()
+        throws Exception
+    {
+        File pomFile = new File( "src/test/resources/projects/badPom.xml" ).getAbsoluteFile();
+        MavenSession mavenSession = createMavenSession( null );
+        ProjectBuildingRequest configuration = new DefaultProjectBuildingRequest();
+        configuration.setValidationLevel( ModelBuildingRequest.VALIDATION_LEVEL_MINIMAL );
+        configuration.setRepositorySession( mavenSession.getRepositorySession() );
+        org.apache.maven.project.ProjectBuilder projectBuilder =
+            lookup( org.apache.maven.project.ProjectBuilder.class );
+
+        // multi projects build entry point
+        try
+        {
+            projectBuilder.build( Collections.singletonList( pomFile ), false, configuration );
+        }
+        catch ( ProjectBuildingException ex )
+        {
+            assertEquals( 1, ex.getResults().size() );
+            MavenProject project = ex.getResults().get( 0 ).getProject();
+            assertNotNull( project );
+            assertNotSame( 0, ex.getResults().get( 0 ).getProblems().size() );
+        }
+    }
+
 }
diff --git a/maven-core/src/test/resources/projects/badPom.xml b/maven-core/src/test/resources/projects/badPom.xml
new file mode 100644
index 0000000..219ae94
--- /dev/null
+++ b/maven-core/src/test/resources/projects/badPom.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  some garbage maven project builder can't parse
+
+</project>


[maven] 01/04: refactoring: extracted initParent() method

Posted by hb...@apache.org.
This is an automated email from the ASF dual-hosted git repository.

hboutemy pushed a commit to branch MNG-6533-2
in repository https://gitbox.apache.org/repos/asf/maven.git

commit 932b03d1cfeea34c2dbe08c8578388c223992c1b
Author: Hervé Boutemy <hb...@apache.org>
AuthorDate: Thu Dec 27 01:01:10 2018 +0100

    refactoring: extracted initParent() method
---
 .../maven/project/DefaultProjectBuilder.java       | 150 +++++++++++----------
 1 file changed, 78 insertions(+), 72 deletions(-)

diff --git a/maven-core/src/main/java/org/apache/maven/project/DefaultProjectBuilder.java b/maven-core/src/main/java/org/apache/maven/project/DefaultProjectBuilder.java
index 35a4e9f..0d2887b 100644
--- a/maven-core/src/main/java/org/apache/maven/project/DefaultProjectBuilder.java
+++ b/maven-core/src/main/java/org/apache/maven/project/DefaultProjectBuilder.java
@@ -626,78 +626,7 @@ public class DefaultProjectBuilder
         project.setOriginalModel( result.getRawModel() );
         project.setFile( model.getPomFile() );
 
-        Model parentModel = result.getModelIds().size() > 1 && !result.getModelIds().get( 1 ).isEmpty()
-                                ? result.getRawModel( result.getModelIds().get( 1 ) )
-                                : null;
-
-        if ( parentModel != null )
-        {
-            final String parentGroupId = inheritedGroupId( result, 1 );
-            final String parentVersion = inheritedVersion( result, 1 );
-
-            project.setParentArtifact( repositorySystem.createProjectArtifact( parentGroupId,
-                                                                               parentModel.getArtifactId(),
-                                                                               parentVersion ) );
-
-            // org.apache.maven.its.mng4834:parent:0.1
-            String parentModelId = result.getModelIds().get( 1 );
-            File parentPomFile = result.getRawModel( parentModelId ).getPomFile();
-            MavenProject parent = projects.get( parentModelId );
-            if ( parent == null )
-            {
-                //
-                // At this point the DefaultModelBuildingListener has fired and it populates the
-                // remote repositories with those found in the pom.xml, along with the existing externally
-                // defined repositories.
-                //
-                projectBuildingRequest.setRemoteRepositories( project.getRemoteArtifactRepositories() );
-                if ( parentPomFile != null )
-                {
-                    project.setParentFile( parentPomFile );
-                    try
-                    {
-                        parent = build( parentPomFile, projectBuildingRequest ).getProject();
-                    }
-                    catch ( ProjectBuildingException e )
-                    {
-                        // MNG-4488 where let invalid parents slide on by
-                        if ( logger.isDebugEnabled() )
-                        {
-                            // Message below is checked for in the MNG-2199 core IT.
-                            logger.warn( "Failed to build parent project for " + project.getId(), e );
-                        }
-                        else
-                        {
-                            // Message below is checked for in the MNG-2199 core IT.
-                            logger.warn( "Failed to build parent project for " + project.getId() );
-                        }
-                    }
-                }
-                else
-                {
-                    Artifact parentArtifact = project.getParentArtifact();
-                    try
-                    {
-                        parent = build( parentArtifact, projectBuildingRequest ).getProject();
-                    }
-                    catch ( ProjectBuildingException e )
-                    {
-                        // MNG-4488 where let invalid parents slide on by
-                        if ( logger.isDebugEnabled() )
-                        {
-                            // Message below is checked for in the MNG-2199 core IT.
-                            logger.warn( "Failed to build parent project for " + project.getId(), e );
-                        }
-                        else
-                        {
-                            // Message below is checked for in the MNG-2199 core IT.
-                            logger.warn( "Failed to build parent project for " + project.getId() );
-                        }
-                    }
-                }
-            }
-            project.setParent( parent );
-        }
+        initParent( project, projects, result, projectBuildingRequest );
 
         Artifact projectArtifact =
             repositorySystem.createArtifact( project.getGroupId(), project.getArtifactId(), project.getVersion(), null,
@@ -874,6 +803,83 @@ public class DefaultProjectBuilder
         }
     }
 
+    private void initParent( MavenProject project, Map<String, MavenProject> projects, ModelBuildingResult result,
+                             ProjectBuildingRequest projectBuildingRequest )
+    {
+        Model parentModel = result.getModelIds().size() > 1 && !result.getModelIds().get( 1 ).isEmpty()
+                                ? result.getRawModel( result.getModelIds().get( 1 ) )
+                                : null;
+
+        if ( parentModel != null )
+        {
+            final String parentGroupId = inheritedGroupId( result, 1 );
+            final String parentVersion = inheritedVersion( result, 1 );
+
+            project.setParentArtifact( repositorySystem.createProjectArtifact( parentGroupId,
+                                                                               parentModel.getArtifactId(),
+                                                                               parentVersion ) );
+
+            // org.apache.maven.its.mng4834:parent:0.1
+            String parentModelId = result.getModelIds().get( 1 );
+            File parentPomFile = result.getRawModel( parentModelId ).getPomFile();
+            MavenProject parent = projects.get( parentModelId );
+            if ( parent == null )
+            {
+                //
+                // At this point the DefaultModelBuildingListener has fired and it populates the
+                // remote repositories with those found in the pom.xml, along with the existing externally
+                // defined repositories.
+                //
+                projectBuildingRequest.setRemoteRepositories( project.getRemoteArtifactRepositories() );
+                if ( parentPomFile != null )
+                {
+                    project.setParentFile( parentPomFile );
+                    try
+                    {
+                        parent = build( parentPomFile, projectBuildingRequest ).getProject();
+                    }
+                    catch ( ProjectBuildingException e )
+                    {
+                        // MNG-4488 where let invalid parents slide on by
+                        if ( logger.isDebugEnabled() )
+                        {
+                            // Message below is checked for in the MNG-2199 core IT.
+                            logger.warn( "Failed to build parent project for " + project.getId(), e );
+                        }
+                        else
+                        {
+                            // Message below is checked for in the MNG-2199 core IT.
+                            logger.warn( "Failed to build parent project for " + project.getId() );
+                        }
+                    }
+                }
+                else
+                {
+                    Artifact parentArtifact = project.getParentArtifact();
+                    try
+                    {
+                        parent = build( parentArtifact, projectBuildingRequest ).getProject();
+                    }
+                    catch ( ProjectBuildingException e )
+                    {
+                        // MNG-4488 where let invalid parents slide on by
+                        if ( logger.isDebugEnabled() )
+                        {
+                            // Message below is checked for in the MNG-2199 core IT.
+                            logger.warn( "Failed to build parent project for " + project.getId(), e );
+                        }
+                        else
+                        {
+                            // Message below is checked for in the MNG-2199 core IT.
+                            logger.warn( "Failed to build parent project for " + project.getId() );
+                        }
+                    }
+                }
+            }
+            project.setParent( parent );
+        }
+    }
+
     private static String inheritedGroupId( final ModelBuildingResult result, final int modelIndex )
     {
         String groupId = null;