diff --git a/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/descriptor/ClassDescriptorFromJvmBytecode.java b/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/descriptor/ClassDescriptorFromJvmBytecode.java
index cb2b23a1477..5175b35a1ba 100644
--- a/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/descriptor/ClassDescriptorFromJvmBytecode.java
+++ b/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/descriptor/ClassDescriptorFromJvmBytecode.java
@@ -36,7 +36,8 @@ public class ClassDescriptorFromJvmBytecode extends MutableClassDescriptorLite {
     @NotNull
     private final JavaDescriptorResolver javaDescriptorResolver;
 
-    private ResolverClassData resolverBinaryClassData = null;
+    @NotNull
+    private final ResolverClassData resolverBinaryClassData;
 
 
     // lazy
@@ -44,24 +45,21 @@ public class ClassDescriptorFromJvmBytecode extends MutableClassDescriptorLite {
 
     public ClassDescriptorFromJvmBytecode(
             @NotNull DeclarationDescriptor containingDeclaration, @NotNull ClassKind kind,
-            @NotNull JavaDescriptorResolver javaDescriptorResolver
+            @NotNull JavaDescriptorResolver javaDescriptorResolver,
+            @NotNull ResolverClassData data
     ) {
         super(containingDeclaration, kind);
         this.javaDescriptorResolver = javaDescriptorResolver;
+        resolverBinaryClassData = data;
     }
 
     @NotNull
     @Override
     public Collection<ConstructorDescriptor> getConstructors() {
         if (constructors == null) {
-            assert resolverBinaryClassData != null;
             this.constructors = javaDescriptorResolver.resolveConstructors(resolverBinaryClassData,
                                                                            this);
         }
         return constructors;
     }
-
-    public void setClassData(@NotNull ResolverClassData resolverBinaryClassData) {
-        this.resolverBinaryClassData = resolverBinaryClassData;
-    }
 }
diff --git a/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/resolver/JavaClassObjectResolver.java b/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/resolver/JavaClassObjectResolver.java
index b928d484c3d..ec855c918e0 100644
--- a/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/resolver/JavaClassObjectResolver.java
+++ b/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/resolver/JavaClassObjectResolver.java
@@ -110,10 +110,9 @@ public final class JavaClassObjectResolver {
         String qualifiedName = classObjectPsiClass.getQualifiedName();
         assert qualifiedName != null;
         FqName fqName = new FqName(qualifiedName);
-        ClassDescriptorFromJvmBytecode classObjectDescriptor
-                = new ClassDescriptorFromJvmBytecode(containing, ClassKind.CLASS_OBJECT, javaDescriptorResolver);
         ResolverClassData classObjectData = ResolverClassData.createBinaryClassData(classObjectPsiClass, fqName);
-        classObjectDescriptor.setClassData(classObjectData);
+        ClassDescriptorFromJvmBytecode classObjectDescriptor
+                = new ClassDescriptorFromJvmBytecode(containing, ClassKind.CLASS_OBJECT, javaDescriptorResolver, classObjectData);
         classObjectDescriptor.setSupertypes(supertypesResolver.getSupertypes(classObjectDescriptor, new PsiClassWrapper(classObjectPsiClass), classObjectData,
                                                                              Collections.<TypeParameterDescriptor>emptyList()
         ));
@@ -151,10 +150,9 @@ public final class JavaClassObjectResolver {
     ) {
         FqNameUnsafe fqName = DescriptorResolverUtils.getFqNameForClassObject(psiClass);
 
-        ClassDescriptorFromJvmBytecode classObjectDescriptor = new ClassDescriptorFromJvmBytecode(
-                containing, ClassKind.CLASS_OBJECT, javaDescriptorResolver);
         ResolverClassData classData = ResolverClassData.createBinaryClassData(psiClass, null);
-        classObjectDescriptor.setClassData(classData);
+        ClassDescriptorFromJvmBytecode classObjectDescriptor = new ClassDescriptorFromJvmBytecode(
+                containing, ClassKind.CLASS_OBJECT, javaDescriptorResolver, classData);
 
         ResolverClassData data = ResolverClassData.createSyntheticClassObjectClassData(psiClass);
         setUpClassObjectDescriptor(classObjectDescriptor, containing, fqName, data, getClassObjectName(containing.getName().getName()));
diff --git a/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/resolver/JavaClassResolver.java b/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/resolver/JavaClassResolver.java
index cc055f75b00..b13e1006807 100644
--- a/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/resolver/JavaClassResolver.java
+++ b/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/resolver/JavaClassResolver.java
@@ -224,10 +224,9 @@ public final class JavaClassResolver {
     ) {
         JetClassAnnotation jetClassAnnotation = JetClassAnnotation.get(psiClass);
         ClassKind kind = getClassKind(psiClass, jetClassAnnotation);
-        ClassDescriptorFromJvmBytecode classDescriptor
-                = new ClassDescriptorFromJvmBytecode(containingDeclaration, kind, javaDescriptorResolver);
         ResolverClassData classData = ResolverClassData.createBinaryClassData(psiClass, fqName);
-        classDescriptor.setClassData(classData);
+        ClassDescriptorFromJvmBytecode classDescriptor
+                = new ClassDescriptorFromJvmBytecode(containingDeclaration, kind, javaDescriptorResolver, classData);
 
         cache(javaClassToKotlinFqName(fqName), classDescriptor);
         classDescriptor.setName(Name.identifier(psiClass.getName()));