This is an automated email from the ASF dual-hosted git repository.
khmarbaise pushed a commit to branch MNG-6164
in repository https://gitbox.apache.org/repos/asf/maven.git
commit 186cee334b531aa19baab84cbbb5eeecdacdfff2
Author: Christian Schulte <schu...@apache.org>
AuthorDate: Mon Dec 14 04:57:47 2015 +0100
[MNG-6164] Collections inconsistently immutable
Make non-empty collections returned immutable just like those returned by
java.util.Collections.
---
.../org/apache/maven/artifact/DefaultArtifact.java | 2 +-
.../maven/artifact/versioning/VersionRange.java | 2 +-
.../repository/DefaultArtifactRepository.java | 2 +-
.../maven/repository/MetadataResolutionResult.java | 27 +++++++++++++++-------
.../repository/MavenArtifactRepository.java | 2 +-
.../resolver/ArtifactResolutionResult.java | 27 +++++++++++++++-------
.../maven/artifact/resolver/ResolutionNode.java | 1 +
.../apache/maven/exception/ExceptionSummary.java | 5 +++-
.../execution/DefaultMavenExecutionResult.java | 6 +++--
.../maven/lifecycle/internal/MojoExecutor.java | 18 ++++++++-------
.../plugin/internal/DefaultMavenPluginManager.java | 2 +-
.../plugin/prefix/DefaultPluginPrefixRequest.java | 4 ++--
.../version/DefaultPluginVersionRequest.java | 2 +-
.../project/DefaultDependencyResolutionResult.java | 5 +++-
.../maven/project/DefaultProjectBuilder.java | 1 +
.../maven/project/DefaultProjectRealmCache.java | 4 +++-
.../org/apache/maven/project/MavenProject.java | 19 ++++++++-------
.../maven/project/artifact/ProjectArtifact.java | 7 ++++--
.../main/java/org/apache/maven/cli/MavenCli.java | 4 +++-
.../model/building/ModelBuildingException.java | 2 +-
20 files changed, 91 insertions(+), 51 deletions(-)
diff --git
a/maven-artifact/src/main/java/org/apache/maven/artifact/DefaultArtifact.java
b/maven-artifact/src/main/java/org/apache/maven/artifact/DefaultArtifact.java
index 1167e91..3fa1907 100644
---
a/maven-artifact/src/main/java/org/apache/maven/artifact/DefaultArtifact.java
+++
b/maven-artifact/src/main/java/org/apache/maven/artifact/DefaultArtifact.java
@@ -273,7 +273,7 @@ public class DefaultArtifact
return Collections.emptyList();
}
- return metadataMap.values();
+ return Collections.unmodifiableCollection( metadataMap.values() );
}
// ----------------------------------------------------------------------
diff --git
a/maven-artifact/src/main/java/org/apache/maven/artifact/versioning/VersionRange.java
b/maven-artifact/src/main/java/org/apache/maven/artifact/versioning/VersionRange.java
index 56343b2..e919621 100644
---
a/maven-artifact/src/main/java/org/apache/maven/artifact/versioning/VersionRange.java
+++
b/maven-artifact/src/main/java/org/apache/maven/artifact/versioning/VersionRange.java
@@ -262,7 +262,7 @@ public class VersionRange
}
else
{
- restrictions = intersection( r1, r2 );
+ restrictions = Collections.unmodifiableList( intersection( r1, r2
) );
}
ArtifactVersion version = null;
diff --git
a/maven-compat/src/main/java/org/apache/maven/artifact/repository/DefaultArtifactRepository.java
b/maven-compat/src/main/java/org/apache/maven/artifact/repository/DefaultArtifactRepository.java
index f5db5ef..16b82c5 100644
---
a/maven-compat/src/main/java/org/apache/maven/artifact/repository/DefaultArtifactRepository.java
+++
b/maven-compat/src/main/java/org/apache/maven/artifact/repository/DefaultArtifactRepository.java
@@ -256,7 +256,7 @@ public class DefaultArtifactRepository
{
if ( mirroredRepositories != null )
{
- this.mirroredRepositories = mirroredRepositories;
+ this.mirroredRepositories = Collections.unmodifiableList(
mirroredRepositories );
}
else
{
diff --git
a/maven-compat/src/main/java/org/apache/maven/repository/MetadataResolutionResult.java
b/maven-compat/src/main/java/org/apache/maven/repository/MetadataResolutionResult.java
index 70b9c3f..7be1d96 100644
---
a/maven-compat/src/main/java/org/apache/maven/repository/MetadataResolutionResult.java
+++
b/maven-compat/src/main/java/org/apache/maven/repository/MetadataResolutionResult.java
@@ -118,7 +118,10 @@ public class MetadataResolutionResult
public List<Artifact> getMissingArtifacts()
{
- return missingArtifacts == null ? Collections.<Artifact>emptyList() :
missingArtifacts;
+ return missingArtifacts == null
+ ? Collections.<Artifact>emptyList()
+ : Collections.unmodifiableList( missingArtifacts );
+
}
public MetadataResolutionResult addMissingArtifact( Artifact artifact )
@@ -148,7 +151,10 @@ public class MetadataResolutionResult
public List<Exception> getExceptions()
{
- return exceptions == null ? Collections.<Exception>emptyList() :
exceptions;
+ return exceptions == null
+ ? Collections.<Exception>emptyList()
+ : Collections.unmodifiableList( exceptions );
+
}
// ------------------------------------------------------------------------
@@ -185,7 +191,10 @@ public class MetadataResolutionResult
public List<Exception> getVersionRangeViolations()
{
- return versionRangeViolations == null ?
Collections.<Exception>emptyList() : versionRangeViolations;
+ return versionRangeViolations == null
+ ? Collections.<Exception>emptyList()
+ : Collections.unmodifiableList( versionRangeViolations );
+
}
// ------------------------------------------------------------------------
@@ -217,8 +226,10 @@ public class MetadataResolutionResult
public List<ArtifactResolutionException> getMetadataResolutionExceptions()
{
- return metadataResolutionExceptions == null ?
Collections.<ArtifactResolutionException>emptyList()
- : metadataResolutionExceptions;
+ return metadataResolutionExceptions == null
+ ? Collections.<ArtifactResolutionException>emptyList()
+ : Collections.unmodifiableList(
metadataResolutionExceptions );
+
}
// ------------------------------------------------------------------------
@@ -246,7 +257,7 @@ public class MetadataResolutionResult
return Collections.emptyList();
}
- return errorArtifactExceptions;
+ return Collections.unmodifiableList( errorArtifactExceptions );
}
// ------------------------------------------------------------------------
@@ -283,7 +294,7 @@ public class MetadataResolutionResult
return Collections.emptyList();
}
- return circularDependencyExceptions;
+ return Collections.unmodifiableList( circularDependencyExceptions );
}
// ------------------------------------------------------------------------
@@ -297,7 +308,7 @@ public class MetadataResolutionResult
return Collections.emptyList();
}
- return repositories;
+ return Collections.unmodifiableList( repositories );
}
public MetadataResolutionResult setRepositories( final
List<ArtifactRepository> repositories )
diff --git
a/maven-core/src/main/java/org/apache/maven/artifact/repository/MavenArtifactRepository.java
b/maven-core/src/main/java/org/apache/maven/artifact/repository/MavenArtifactRepository.java
index d4c64f0..f04007e 100644
---
a/maven-core/src/main/java/org/apache/maven/artifact/repository/MavenArtifactRepository.java
+++
b/maven-core/src/main/java/org/apache/maven/artifact/repository/MavenArtifactRepository.java
@@ -405,7 +405,7 @@ public class MavenArtifactRepository
{
if ( mirroredRepositories != null )
{
- this.mirroredRepositories = mirroredRepositories;
+ this.mirroredRepositories = Collections.unmodifiableList(
mirroredRepositories );
}
else
{
diff --git
a/maven-core/src/main/java/org/apache/maven/artifact/resolver/ArtifactResolutionResult.java
b/maven-core/src/main/java/org/apache/maven/artifact/resolver/ArtifactResolutionResult.java
index 6de04f3..ffae1d3 100644
---
a/maven-core/src/main/java/org/apache/maven/artifact/resolver/ArtifactResolutionResult.java
+++
b/maven-core/src/main/java/org/apache/maven/artifact/resolver/ArtifactResolutionResult.java
@@ -130,7 +130,10 @@ public class ArtifactResolutionResult
public List<Artifact> getMissingArtifacts()
{
- return missingArtifacts == null ? Collections.<Artifact>emptyList() :
missingArtifacts;
+ return missingArtifacts == null
+ ? Collections.<Artifact>emptyList()
+ : Collections.unmodifiableList( missingArtifacts );
+
}
public ArtifactResolutionResult addMissingArtifact( Artifact artifact )
@@ -165,7 +168,10 @@ public class ArtifactResolutionResult
public List<Exception> getExceptions()
{
- return exceptions == null ? Collections.<Exception>emptyList() :
exceptions;
+ return exceptions == null
+ ? Collections.<Exception>emptyList()
+ : Collections.unmodifiableList( exceptions );
+
}
// ------------------------------------------------------------------------
@@ -202,7 +208,10 @@ public class ArtifactResolutionResult
public List<Exception> getVersionRangeViolations()
{
- return versionRangeViolations == null ?
Collections.<Exception>emptyList() : versionRangeViolations;
+ return versionRangeViolations == null
+ ? Collections.<Exception>emptyList()
+ : Collections.unmodifiableList( versionRangeViolations );
+
}
// ------------------------------------------------------------------------
@@ -234,8 +243,10 @@ public class ArtifactResolutionResult
public List<ArtifactResolutionException> getMetadataResolutionExceptions()
{
- return metadataResolutionExceptions == null ?
Collections.<ArtifactResolutionException>emptyList()
- : metadataResolutionExceptions;
+ return metadataResolutionExceptions == null
+ ? Collections.<ArtifactResolutionException>emptyList()
+ : Collections.unmodifiableList(
metadataResolutionExceptions );
+
}
// ------------------------------------------------------------------------
@@ -267,7 +278,7 @@ public class ArtifactResolutionResult
return Collections.emptyList();
}
- return errorArtifactExceptions;
+ return Collections.unmodifiableList( errorArtifactExceptions );
}
// ------------------------------------------------------------------------
@@ -304,7 +315,7 @@ public class ArtifactResolutionResult
return Collections.emptyList();
}
- return circularDependencyExceptions;
+ return Collections.unmodifiableList( circularDependencyExceptions );
}
// ------------------------------------------------------------------------
@@ -318,7 +329,7 @@ public class ArtifactResolutionResult
return Collections.emptyList();
}
- return repositories;
+ return Collections.unmodifiableList( repositories );
}
public ArtifactResolutionResult setRepositories( final
List<ArtifactRepository> repositories )
diff --git
a/maven-core/src/main/java/org/apache/maven/artifact/resolver/ResolutionNode.java
b/maven-core/src/main/java/org/apache/maven/artifact/resolver/ResolutionNode.java
index a156871..8e47d2e 100644
---
a/maven-core/src/main/java/org/apache/maven/artifact/resolver/ResolutionNode.java
+++
b/maven-core/src/main/java/org/apache/maven/artifact/resolver/ResolutionNode.java
@@ -102,6 +102,7 @@ public class ResolutionNode
children.add( new ResolutionNode( a, remoteRepositories, this
) );
}
+ children = Collections.unmodifiableList( children );
}
else
{
diff --git
a/maven-core/src/main/java/org/apache/maven/exception/ExceptionSummary.java
b/maven-core/src/main/java/org/apache/maven/exception/ExceptionSummary.java
index dcc376a..6615af6 100644
--- a/maven-core/src/main/java/org/apache/maven/exception/ExceptionSummary.java
+++ b/maven-core/src/main/java/org/apache/maven/exception/ExceptionSummary.java
@@ -53,7 +53,10 @@ public class ExceptionSummary
this.exception = exception;
this.message = ( message != null ) ? message : "";
this.reference = ( reference != null ) ? reference : "";
- this.children = ( children != null ) ? children :
Collections.<ExceptionSummary>emptyList();
+ this.children = ( children != null )
+ ? Collections.unmodifiableList( children )
+ : Collections.<ExceptionSummary>emptyList();
+
}
public Throwable getException()
diff --git
a/maven-core/src/main/java/org/apache/maven/execution/DefaultMavenExecutionResult.java
b/maven-core/src/main/java/org/apache/maven/execution/DefaultMavenExecutionResult.java
index 87d8676..112a064 100644
---
a/maven-core/src/main/java/org/apache/maven/execution/DefaultMavenExecutionResult.java
+++
b/maven-core/src/main/java/org/apache/maven/execution/DefaultMavenExecutionResult.java
@@ -64,8 +64,10 @@ public class DefaultMavenExecutionResult
public List<MavenProject> getTopologicallySortedProjects()
{
- return null == topologicallySortedProjects ?
Collections.<MavenProject>emptyList()
- : topologicallySortedProjects;
+ return null == topologicallySortedProjects
+ ? Collections.<MavenProject>emptyList()
+ : Collections.unmodifiableList( topologicallySortedProjects
);
+
}
public DependencyResolutionResult getDependencyResolutionResult()
diff --git
a/maven-core/src/main/java/org/apache/maven/lifecycle/internal/MojoExecutor.java
b/maven-core/src/main/java/org/apache/maven/lifecycle/internal/MojoExecutor.java
index 766aed1..b78f54d 100644
---
a/maven-core/src/main/java/org/apache/maven/lifecycle/internal/MojoExecutor.java
+++
b/maven-core/src/main/java/org/apache/maven/lifecycle/internal/MojoExecutor.java
@@ -105,32 +105,34 @@ public class MojoExecutor
private Collection<String> toScopes( String classpath )
{
+ Collection<String> scopes = Collections.emptyList();
+
if ( StringUtils.isNotEmpty( classpath ) )
{
if ( Artifact.SCOPE_COMPILE.equals( classpath ) )
{
- return Arrays.asList( Artifact.SCOPE_COMPILE,
Artifact.SCOPE_SYSTEM, Artifact.SCOPE_PROVIDED );
+ scopes = Arrays.asList( Artifact.SCOPE_COMPILE,
Artifact.SCOPE_SYSTEM, Artifact.SCOPE_PROVIDED );
}
else if ( Artifact.SCOPE_RUNTIME.equals( classpath ) )
{
- return Arrays.asList( Artifact.SCOPE_COMPILE,
Artifact.SCOPE_RUNTIME );
+ scopes = Arrays.asList( Artifact.SCOPE_COMPILE,
Artifact.SCOPE_RUNTIME );
}
else if ( Artifact.SCOPE_COMPILE_PLUS_RUNTIME.equals( classpath ) )
{
- return Arrays.asList( Artifact.SCOPE_COMPILE,
Artifact.SCOPE_SYSTEM, Artifact.SCOPE_PROVIDED,
- Artifact.SCOPE_RUNTIME );
+ scopes = Arrays.asList( Artifact.SCOPE_COMPILE,
Artifact.SCOPE_SYSTEM, Artifact.SCOPE_PROVIDED,
+ Artifact.SCOPE_RUNTIME );
}
else if ( Artifact.SCOPE_RUNTIME_PLUS_SYSTEM.equals( classpath ) )
{
- return Arrays.asList( Artifact.SCOPE_COMPILE,
Artifact.SCOPE_SYSTEM, Artifact.SCOPE_RUNTIME );
+ scopes = Arrays.asList( Artifact.SCOPE_COMPILE,
Artifact.SCOPE_SYSTEM, Artifact.SCOPE_RUNTIME );
}
else if ( Artifact.SCOPE_TEST.equals( classpath ) )
{
- return Arrays.asList( Artifact.SCOPE_COMPILE,
Artifact.SCOPE_SYSTEM, Artifact.SCOPE_PROVIDED,
- Artifact.SCOPE_RUNTIME,
Artifact.SCOPE_TEST );
+ scopes = Arrays.asList( Artifact.SCOPE_COMPILE,
Artifact.SCOPE_SYSTEM, Artifact.SCOPE_PROVIDED,
+ Artifact.SCOPE_RUNTIME,
Artifact.SCOPE_TEST );
}
}
- return Collections.emptyList();
+ return Collections.unmodifiableCollection( scopes );
}
public void execute( MavenSession session, List<MojoExecution>
mojoExecutions, ProjectIndex projectIndex )
diff --git
a/maven-core/src/main/java/org/apache/maven/plugin/internal/DefaultMavenPluginManager.java
b/maven-core/src/main/java/org/apache/maven/plugin/internal/DefaultMavenPluginManager.java
index cec6f12..8630471 100644
---
a/maven-core/src/main/java/org/apache/maven/plugin/internal/DefaultMavenPluginManager.java
+++
b/maven-core/src/main/java/org/apache/maven/plugin/internal/DefaultMavenPluginManager.java
@@ -461,7 +461,7 @@ public class DefaultMavenPluginManager
it.remove();
}
}
- return artifacts;
+ return Collections.unmodifiableList( artifacts );
}
private Map<String, ClassLoader> calcImports( MavenProject project,
ClassLoader parent, List<String> imports )
diff --git
a/maven-core/src/main/java/org/apache/maven/plugin/prefix/DefaultPluginPrefixRequest.java
b/maven-core/src/main/java/org/apache/maven/plugin/prefix/DefaultPluginPrefixRequest.java
index 7ab86cf..01194c8 100644
---
a/maven-core/src/main/java/org/apache/maven/plugin/prefix/DefaultPluginPrefixRequest.java
+++
b/maven-core/src/main/java/org/apache/maven/plugin/prefix/DefaultPluginPrefixRequest.java
@@ -100,7 +100,7 @@ public class DefaultPluginPrefixRequest
{
if ( pluginGroups != null )
{
- this.pluginGroups = pluginGroups;
+ this.pluginGroups = Collections.unmodifiableList( pluginGroups );
}
else
{
@@ -131,7 +131,7 @@ public class DefaultPluginPrefixRequest
{
if ( repositories != null )
{
- this.repositories = repositories;
+ this.repositories = Collections.unmodifiableList( repositories );
}
else
{
diff --git
a/maven-core/src/main/java/org/apache/maven/plugin/version/DefaultPluginVersionRequest.java
b/maven-core/src/main/java/org/apache/maven/plugin/version/DefaultPluginVersionRequest.java
index 9907066..57f4250 100644
---
a/maven-core/src/main/java/org/apache/maven/plugin/version/DefaultPluginVersionRequest.java
+++
b/maven-core/src/main/java/org/apache/maven/plugin/version/DefaultPluginVersionRequest.java
@@ -140,7 +140,7 @@ public class DefaultPluginVersionRequest
{
if ( repositories != null )
{
- this.repositories = repositories;
+ this.repositories = Collections.unmodifiableList( repositories );
}
else
{
diff --git
a/maven-core/src/main/java/org/apache/maven/project/DefaultDependencyResolutionResult.java
b/maven-core/src/main/java/org/apache/maven/project/DefaultDependencyResolutionResult.java
index dbdf252..509e8b4 100644
---
a/maven-core/src/main/java/org/apache/maven/project/DefaultDependencyResolutionResult.java
+++
b/maven-core/src/main/java/org/apache/maven/project/DefaultDependencyResolutionResult.java
@@ -98,7 +98,10 @@ class DefaultDependencyResolutionResult
public List<Exception> getResolutionErrors( Dependency dependency )
{
List<Exception> errors = resolutionErrors.get( dependency );
- return ( errors != null ) ? errors :
Collections.<Exception>emptyList();
+ return ( errors != null )
+ ? Collections.unmodifiableList( errors )
+ : Collections.<Exception>emptyList();
+
}
public void setResolutionErrors( Dependency dependency, List<Exception>
errors )
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 1091a08..a659046 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
@@ -809,6 +809,7 @@ public class DefaultProjectBuilder
map.put( d.getManagementKey(), artifact );
}
}
+ map = Collections.unmodifiableMap( map );
}
else
{
diff --git
a/maven-core/src/main/java/org/apache/maven/project/DefaultProjectRealmCache.java
b/maven-core/src/main/java/org/apache/maven/project/DefaultProjectRealmCache.java
index 987f861..a7f0615 100644
---
a/maven-core/src/main/java/org/apache/maven/project/DefaultProjectRealmCache.java
+++
b/maven-core/src/main/java/org/apache/maven/project/DefaultProjectRealmCache.java
@@ -51,7 +51,9 @@ public class DefaultProjectRealmCache
public CacheKey( List<? extends ClassRealm> extensionRealms )
{
- this.extensionRealms = ( extensionRealms != null ) ?
extensionRealms : Collections.<ClassRealm>emptyList();
+ this.extensionRealms = ( extensionRealms != null )
+ ? Collections.unmodifiableList(
extensionRealms )
+ : Collections.<ClassRealm>emptyList();
this.hashCode = this.extensionRealms.hashCode();
}
diff --git
a/maven-core/src/main/java/org/apache/maven/project/MavenProject.java
b/maven-core/src/main/java/org/apache/maven/project/MavenProject.java
index dff5f3f..fd7ab40 100644
--- a/maven-core/src/main/java/org/apache/maven/project/MavenProject.java
+++ b/maven-core/src/main/java/org/apache/maven/project/MavenProject.java
@@ -778,7 +778,7 @@ public class MavenProject
{
return Collections.emptyList();
}
- return getModel().getBuild().getPlugins();
+ return Collections.unmodifiableList(
getModel().getBuild().getPlugins() );
}
public List<String> getModules()
@@ -1079,7 +1079,7 @@ public class MavenProject
}
else
{
- return build.getExtensions();
+ return Collections.unmodifiableList( build.getExtensions() );
}
}
@@ -1604,7 +1604,7 @@ public class MavenProject
{
// TODO let the scope handler deal with this
if ( Artifact.SCOPE_COMPILE.equals( a.getScope() ) ||
Artifact.SCOPE_PROVIDED.equals( a.getScope() )
- || Artifact.SCOPE_SYSTEM.equals( a.getScope() ) )
+ || Artifact.SCOPE_SYSTEM.equals( a.getScope() ) )
{
Dependency dependency = new Dependency();
@@ -1618,7 +1618,7 @@ public class MavenProject
list.add( dependency );
}
}
- return list;
+ return Collections.unmodifiableList( list );
}
@Deprecated
@@ -1662,7 +1662,7 @@ public class MavenProject
list.add( dependency );
}
- return list;
+ return Collections.unmodifiableList( list );
}
@Deprecated // used by the Maven ITs
@@ -1677,7 +1677,7 @@ public class MavenProject
List<Dependency> list = new ArrayList<>( artifacts.size() );
- for ( Artifact a : getArtifacts() )
+ for ( Artifact a : getArtifacts() )
{
// TODO let the scope handler deal with this
if ( Artifact.SCOPE_COMPILE.equals( a.getScope() ) ||
Artifact.SCOPE_RUNTIME.equals( a.getScope() ) )
@@ -1694,7 +1694,7 @@ public class MavenProject
list.add( dependency );
}
}
- return list;
+ return Collections.unmodifiableList( list );
}
@Deprecated
@@ -1790,7 +1790,7 @@ public class MavenProject
list.add( dependency );
}
}
- return list;
+ return Collections.unmodifiableList( list );
}
@Deprecated
@@ -1862,8 +1862,7 @@ public class MavenProject
{
return Collections.emptyList();
}
- return getModel().getReporting().getPlugins();
-
+ return Collections.unmodifiableList(
getModel().getReporting().getPlugins() );
}
@Deprecated
diff --git
a/maven-core/src/main/java/org/apache/maven/project/artifact/ProjectArtifact.java
b/maven-core/src/main/java/org/apache/maven/project/artifact/ProjectArtifact.java
index 8556a6a..46e56dc 100644
---
a/maven-core/src/main/java/org/apache/maven/project/artifact/ProjectArtifact.java
+++
b/maven-core/src/main/java/org/apache/maven/project/artifact/ProjectArtifact.java
@@ -58,8 +58,11 @@ public class ProjectArtifact
public List<Dependency> getManagedDependencies()
{
- DependencyManagement depMgmt = project.getDependencyManagement();
- return ( depMgmt != null ) ? depMgmt.getDependencies() :
Collections.<Dependency>emptyList();
+ DependencyManagement depMngt = project.getDependencyManagement();
+ return ( depMngt != null )
+ ? Collections.unmodifiableList( depMngt.getDependencies() )
+ : Collections.<Dependency>emptyList();
+
}
static class PomArtifactHandler
diff --git a/maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java
b/maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java
index ca8e040..6a1a34a 100644
--- a/maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java
+++ b/maven-embedder/src/main/java/org/apache/maven/cli/MavenCli.java
@@ -750,7 +750,9 @@ public class MavenCli
BootstrapCoreExtensionManager resolver = container.lookup(
BootstrapCoreExtensionManager.class );
- return resolver.loadCoreExtensions( request,
providedArtifacts, extensions );
+ return Collections.unmodifiableList(
resolver.loadCoreExtensions( request, providedArtifacts,
+
extensions ) );
+
}
finally
{
diff --git
a/maven-model-builder/src/main/java/org/apache/maven/model/building/ModelBuildingException.java
b/maven-model-builder/src/main/java/org/apache/maven/model/building/ModelBuildingException.java
index 434cb59..b527438 100644
---
a/maven-model-builder/src/main/java/org/apache/maven/model/building/ModelBuildingException.java
+++
b/maven-model-builder/src/main/java/org/apache/maven/model/building/ModelBuildingException.java
@@ -136,7 +136,7 @@ public class ModelBuildingException
{
return Collections.emptyList();
}
- return result.getProblems();
+ return Collections.unmodifiableList( result.getProblems() );
}
private static String toMessage( ModelBuildingResult result )
