check $$TImpl class is not visible through JavaDescriptorResolver

compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/JavaClassMembersScope.java

@@ -106,7 +106,10 @@ public class JavaClassMembersScope implements JetScope {
         for (PsiClass innerClass : psiClass.getAllInnerClasses()) {
             if (name.equals(innerClass.getName())) {
                 if (innerClass.hasModifierProperty(PsiModifier.STATIC) != staticMembers) return null;
-                return semanticServices.getDescriptorResolver().resolveClass(innerClass);
+                ClassDescriptor classDescriptor = semanticServices.getDescriptorResolver().resolveClass(innerClass);
+                if (classDescriptor != null) {
+                    return classDescriptor;
+                }
             }
         }
         return null;

compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/JavaDescriptorResolver.java

@@ -106,9 +106,14 @@ public class JavaDescriptorResolver {
         this.semanticServices = semanticServices;
     }
 
-    @NotNull
+    @Nullable
     public ClassDescriptor resolveClass(@NotNull PsiClass psiClass) {
         String qualifiedName = psiClass.getQualifiedName();
+        
+        if (qualifiedName.endsWith(JvmAbi.TRAIT_IMPL_SUFFIX)) {
+            // TODO: only if -$$TImpl class is created by Kotlin
+            return null;
+        }
 
         // First, let's check that this is a real Java class, not a Java's view on a Kotlin class:
         ClassDescriptor kotlinClassDescriptor = semanticServices.getKotlinClassDescriptor(qualifiedName);
@@ -127,6 +132,12 @@ public class JavaDescriptorResolver {
 
     @Nullable
     public ClassDescriptor resolveClass(@NotNull String qualifiedName) {
+        
+        if (qualifiedName.endsWith(JvmAbi.TRAIT_IMPL_SUFFIX)) {
+            // TODO: only if -$$TImpl class is created by Kotlin
+            return null;
+        }
+        
         // First, let's check that this is a real Java class, not a Java's view on a Kotlin class:
         ClassDescriptor kotlinClassDescriptor = semanticServices.getKotlinClassDescriptor(qualifiedName);
         if (kotlinClassDescriptor != null) {
@@ -753,6 +764,9 @@ public class JavaDescriptorResolver {
             return functionDescriptor;
         }
         DeclarationDescriptor classDescriptor = method.hasModifierProperty(PsiModifier.STATIC) ? resolveNamespace(method.getContainingClass()) : resolveClass(method.getContainingClass());
+        if (classDescriptor == null) {
+            return null;
+        }
         PsiParameter[] parameters = method.getParameterList().getParameters();
         FunctionDescriptorImpl functionDescriptorImpl = new FunctionDescriptorImpl(
                 owner,

compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/JavaPackageScope.java

@@ -94,7 +94,10 @@ public class JavaPackageScope extends JetScopeImpl {
                     }
 
                     if (psiClass.hasModifierProperty(PsiModifier.PUBLIC)) {
-                        allDescriptors.add(descriptorResolver.resolveClass(psiClass));
+                        ClassDescriptor classDescriptor = descriptorResolver.resolveClass(psiClass);
+                        if (classDescriptor != null) {
+                            allDescriptors.add(classDescriptor);
+                        }
                     }
                 }
             }

compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/JavaTypeTransformer.java

@@ -94,6 +94,9 @@ public class JavaTypeTransformer {
                     }
 
                     ClassDescriptor descriptor = resolver.resolveClass(psiClass);
+                    if (descriptor == null) {
+                        return ErrorUtils.createErrorType("Unresolve java class: " + classType.getPresentableText());
+                    }
 
                     List<TypeProjection> arguments = Lists.newArrayList();
                     if (classType.isRaw()) {