Don't report package facade classes as output of sources without top-level members.

compiler/backend/src/org/jetbrains/jet/codegen/PackageCodegen.java

@@ -87,7 +87,8 @@ public class PackageCodegen {
                 JetFile sourceFile = getRepresentativePackageFile(files);
 
                 String className = AsmUtil.internalNameByFqNameWithoutInnerClasses(getPackageClassFqName(fqName));
-                ClassBuilder v = PackageCodegen.this.state.getFactory().newVisitor(Type.getObjectType(className), files);
+                ClassBuilder v = PackageCodegen.this.state.getFactory()
+                        .newVisitor(Type.getObjectType(className), getPackageFilesWithCallables(files));
                 v.defineClass(sourceFile, V1_6,
                               ACC_PUBLIC | ACC_FINAL,
                               className,
@@ -111,18 +112,7 @@ public class PackageCodegen {
             return null;
         }
 
-        List<JetFile> packageFilesWithCallables = ContainerUtil.filter(packageFiles, new Condition<JetFile>() {
+        List<JetFile> packageFilesWithCallables = getPackageFilesWithCallables(packageFiles);
-            @Override
-            public boolean value(JetFile packageFile) {
-                for (JetDeclaration declaration : packageFile.getDeclarations()) {
-                    if (declaration instanceof JetProperty || declaration instanceof JetNamedFunction) {
-                        return true;
-                    }
-                }
-                return false;
-            }
-        });
-
         return packageFilesWithCallables.size() == 1 ? packageFilesWithCallables.get(0) : null;
     }
 
@@ -359,6 +349,21 @@ public class PackageCodegen {
         MemberCodegen.genClassOrObject(context, classOrObject, state, null);
     }
 
+    @NotNull
+    public static List<JetFile> getPackageFilesWithCallables(@NotNull Collection<JetFile> packageFiles) {
+        return ContainerUtil.filter(packageFiles, new Condition<JetFile>() {
+            @Override
+            public boolean value(JetFile packageFile) {
+                for (JetDeclaration declaration : packageFile.getDeclarations()) {
+                    if (declaration instanceof JetProperty || declaration instanceof JetNamedFunction) {
+                        return true;
+                    }
+                }
+                return false;
+            }
+        });
+    }
+
     public void done() {
         v.done();
     }

compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/kotlin/incremental/IncrementalPackageFragmentProvider.kt

@@ -38,6 +38,8 @@ import org.jetbrains.jet.lang.resolve.kotlin.DeserializedResolverUtils
 import java.util.Collections
 import org.jetbrains.jet.utils.addToStdlib.singletonOrEmptyList
 import org.jetbrains.jet.storage.NotNullLazyValue
+import org.jetbrains.jet.lang.psi.JetNamedFunction
+import org.jetbrains.jet.lang.psi.JetProperty
 
 public class IncrementalPackageFragmentProvider(
         sourceFiles: Collection<JetFile>,
@@ -70,7 +72,9 @@ public class IncrementalPackageFragmentProvider(
         }
 
         for (source in sourceFiles) {
-            createPackageFragment(source.getPackageFqName())
+            if (source.getDeclarations().any { it is JetProperty || it is JetNamedFunction }) {
+                createPackageFragment(source.getPackageFqName())
+            }
         }
     }
 

jps-plugin/test/org/jetbrains/jet/jps/build/KotlinJpsBuildTest.java

@@ -154,7 +154,7 @@ public class KotlinJpsBuildTest extends AbstractKotlinJpsBuildTestCase {
 
         checkPackageDeletedFromOutputWhen(Operation.CHANGE, "kotlinProject", "src/main.kt", "foo.FooPackage");
         checkPackageDeletedFromOutputWhen(Operation.CHANGE, "kotlinProject", "src/boo.kt", "boo.BooPackage");
-        checkClassesDeletedFromOutputWhen(Operation.CHANGE, "kotlinProject", "src/Bar.kt", "foo.Bar", "foo.FooPackage");
+        checkClassesDeletedFromOutputWhen(Operation.CHANGE, "kotlinProject", "src/Bar.kt", "foo.Bar");
 
         checkPackageDeletedFromOutputWhen(Operation.DELETE, "kotlinProject", "src/main.kt", "foo.FooPackage");
         assertFilesNotExistInOutput(module, "foo/FooPackage.class");