#24 Indirect static required modules should stay on classpath

Author: rfscholte

plexus-java/src/main/java/org/codehaus/plexus/languages/java/jpms/LocationManager.java

@@ -259,7 +259,8 @@ public String extract( Path path )
             selectRequires( mainModuleDescriptor, 
                             Collections.unmodifiableMap( availableNamedModules ),
                             Collections.unmodifiableMap( availableProviders ), 
-                            requiredNamedModules );
+                            requiredNamedModules,
+                            true );
         }
 
         for ( String additionalModule : request.getAdditionalModules() )
@@ -373,11 +374,15 @@ private ResolvePathResult resolvePath( Path path, ModuleNameExtractor fileModule
     private void selectRequires( JavaModuleDescriptor module, 
                                  Map<String, JavaModuleDescriptor> availableModules,
                                  Map<String, Set<String>> availableProviders,
-                                 Set<String> namedModules )
+                                 Set<String> namedModules,
+                                 boolean includeStatic )
     {
         for ( JavaModuleDescriptor.JavaRequires requires : module.requires() )
         {
-            selectModule( requires.name(), availableModules, availableProviders, namedModules );
+            if ( includeStatic || !requires.modifiers​().contains( JavaModuleDescriptor.JavaRequires.JavaModifier.STATIC )  )
+            {
+                selectModule( requires.name(), availableModules, availableProviders, namedModules );
+            }
         }
 
         for ( String uses : module.uses() )
@@ -390,7 +395,7 @@ private void selectRequires( JavaModuleDescriptor module,
 
                     if ( requiredModule != null && namedModules.add( providerModule ) )
                     {
-                        selectRequires( requiredModule, availableModules, availableProviders, namedModules );
+                        selectRequires( requiredModule, availableModules, availableProviders, namedModules, false );
                     }
                 }
             }
@@ -404,7 +409,7 @@ private void selectModule( String module, Map<String, JavaModuleDescriptor> avai
 
         if ( requiredModule != null && namedModules.add( module ) )
         {
-            selectRequires( requiredModule, availableModules, availableProviders, namedModules );
+            selectRequires( requiredModule, availableModules, availableProviders, namedModules, false );
         }
     }
 

plexus-java/src/test/java/org/codehaus/plexus/languages/java/jpms/LocationManagerTest.java

@@ -358,5 +358,27 @@ public void testParseModuleDescriptor() throws Exception
         assertThat( result.getModuleNameSource(), is( ModuleNameSource.MODULEDESCRIPTOR ) );
         assertThat( result.getModuleDescriptor().name(), is( "a.b.c" ) );
     }
+    
+    @Test
+    public void testTransitiveStatic() throws Exception 
+    {
+        Path moduleA = Paths.get( "src/test/resources/mock/module-info.java" ); // some file called module-info.java
+        Path moduleB = Paths.get( "src/test/resources/mock/jar0.jar" ); // any existing file
+        Path moduleC = Paths.get( "src/test/resources/mock/jar1.jar" ); // any existing file
+        ResolvePathsRequest<Path> request = ResolvePathsRequest.ofPaths( moduleB, moduleC ).setMainModuleDescriptor( moduleA );
+        
+        when(  qdoxParser.fromSourcePath( moduleA ) ).thenReturn( JavaModuleDescriptor.newModule( "moduleA" )
+                                                                  .requires( "moduleB" ).build() );
+        when(  asmParser.getModuleDescriptor( moduleB ) ).thenReturn( JavaModuleDescriptor.newModule( "moduleB" )
+                                                                      .requires​( Collections.singleton( JavaModuleDescriptor.JavaRequires.JavaModifier.STATIC ), "moduleC" ).build() );
+        when(  asmParser.getModuleDescriptor( moduleC ) ).thenReturn( JavaModuleDescriptor.newModule( "moduleC" ).build() );
+        
+        
+        ResolvePathsResult<Path> result = locationManager.resolvePaths( request );
+        assertThat( result.getPathElements().size(), is( 2 ) );
+        assertThat( result.getModulepathElements().size(), is( 1 ) );
+        assertThat( result.getClasspathElements().size(), is( 1 ) );
+        assertThat( result.getPathExceptions().size(), is( 0 ) );
+    }
 
 }