diff --git a/compiler/frontend.java/src/org/jetbrains/kotlin/resolve/jvm/checkers/JvmFieldApplicabilityChecker.kt b/compiler/frontend.java/src/org/jetbrains/kotlin/resolve/jvm/checkers/JvmFieldApplicabilityChecker.kt
index 4a85fc80d59..caa749c8a7a 100644
--- a/compiler/frontend.java/src/org/jetbrains/kotlin/resolve/jvm/checkers/JvmFieldApplicabilityChecker.kt
+++ b/compiler/frontend.java/src/org/jetbrains/kotlin/resolve/jvm/checkers/JvmFieldApplicabilityChecker.kt
@@ -16,10 +16,7 @@
 
 package org.jetbrains.kotlin.resolve.jvm.checkers
 
-import org.jetbrains.kotlin.descriptors.ClassDescriptor
-import org.jetbrains.kotlin.descriptors.DeclarationDescriptor
-import org.jetbrains.kotlin.descriptors.PropertyDescriptor
-import org.jetbrains.kotlin.descriptors.Visibilities
+import org.jetbrains.kotlin.descriptors.*
 import org.jetbrains.kotlin.diagnostics.DiagnosticSink
 import org.jetbrains.kotlin.fileClasses.JvmFileClassUtil
 import org.jetbrains.kotlin.fileClasses.isInsideJvmMultifileClassFile
@@ -58,7 +55,7 @@ class JvmFieldApplicabilityChecker : DeclarationChecker {
 
         val problem = when {
             descriptor !is PropertyDescriptor -> NOT_A_PROPERTY
-            descriptor.modality.isOverridable -> NOT_FINAL
+            descriptor.isOverridable -> NOT_FINAL
             Visibilities.isPrivate(descriptor.visibility) -> PRIVATE
             !descriptor.hasBackingField(bindingContext) -> NO_BACKING_FIELD
             descriptor.hasCustomAccessor() -> CUSTOM_ACCESSOR
diff --git a/compiler/frontend.java/src/org/jetbrains/kotlin/resolve/jvm/checkers/declarationCheckers.kt b/compiler/frontend.java/src/org/jetbrains/kotlin/resolve/jvm/checkers/declarationCheckers.kt
index 8f7a27836e8..e904ca7858b 100644
--- a/compiler/frontend.java/src/org/jetbrains/kotlin/resolve/jvm/checkers/declarationCheckers.kt
+++ b/compiler/frontend.java/src/org/jetbrains/kotlin/resolve/jvm/checkers/declarationCheckers.kt
@@ -115,7 +115,7 @@ public class JvmNameAnnotationChecker : DeclarationChecker {
 
         if (descriptor is CallableMemberDescriptor) {
             val callableMemberDescriptor = descriptor
-            if (DescriptorUtils.isOverride(callableMemberDescriptor) || callableMemberDescriptor.modality.isOverridable) {
+            if (DescriptorUtils.isOverride(callableMemberDescriptor) || callableMemberDescriptor.isOverridable) {
                 diagnosticHolder.report(ErrorsJvm.INAPPLICABLE_JVM_NAME.on(annotationEntry))
             }
         }
diff --git a/compiler/frontend/src/org/jetbrains/kotlin/cfg/KotlinFlowInformationProvider.java b/compiler/frontend/src/org/jetbrains/kotlin/cfg/KotlinFlowInformationProvider.java
index 4fbcb9310de..356b71c927e 100644
--- a/compiler/frontend/src/org/jetbrains/kotlin/cfg/KotlinFlowInformationProvider.java
+++ b/compiler/frontend/src/org/jetbrains/kotlin/cfg/KotlinFlowInformationProvider.java
@@ -612,7 +612,7 @@ public class KotlinFlowInformationProvider {
                                         FunctionDescriptor functionDescriptor = (FunctionDescriptor) descriptor;
                                         String functionName = functionDescriptor.getName().asString();
                                         if (isMain
-                                            || functionDescriptor.getModality().isOverridable()
+                                            || ModalityKt.isOverridable(functionDescriptor)
                                             || !functionDescriptor.getOverriddenDescriptors().isEmpty()
                                             || "getValue".equals(functionName) || "setValue".equals(functionName)
                                             || "propertyDelegated".equals(functionName)
diff --git a/compiler/frontend/src/org/jetbrains/kotlin/resolve/DelegationResolver.kt b/compiler/frontend/src/org/jetbrains/kotlin/resolve/DelegationResolver.kt
index 67b0f23403a..4966553cbb1 100644
--- a/compiler/frontend/src/org/jetbrains/kotlin/resolve/DelegationResolver.kt
+++ b/compiler/frontend/src/org/jetbrains/kotlin/resolve/DelegationResolver.kt
@@ -84,7 +84,7 @@ class DelegationResolver<T : CallableMemberDescriptor> private constructor(
                     memberExtractor.getMembersByType(it)
                 } ?: emptyList<CallableMemberDescriptor>()
         return memberExtractor.getMembersByType(interfaceType).filter { descriptor ->
-            descriptor.modality.isOverridable && !classSupertypeMembers.any { isOverridableBy(it, descriptor)  }
+            descriptor.isOverridable && !classSupertypeMembers.any { isOverridableBy(it, descriptor)  }
         }
     }
 
diff --git a/compiler/frontend/src/org/jetbrains/kotlin/resolve/OverrideResolver.java b/compiler/frontend/src/org/jetbrains/kotlin/resolve/OverrideResolver.java
index a12795889a4..2ff4533fbc2 100644
--- a/compiler/frontend/src/org/jetbrains/kotlin/resolve/OverrideResolver.java
+++ b/compiler/frontend/src/org/jetbrains/kotlin/resolve/OverrideResolver.java
@@ -884,7 +884,7 @@ public class OverrideResolver {
         for (CallableMemberDescriptor overridden : overriddenDescriptors) {
             if (overridden == null) continue;
 
-            if (!overridden.getModality().isOverridable()) {
+            if (!ModalityKt.isOverridable(overridden)) {
                 reportError.overridingFinalMember(memberDescriptor, overridden);
             }
 
diff --git a/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/smartcasts/DataFlowValueFactory.java b/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/smartcasts/DataFlowValueFactory.java
index bb961621551..d7081559ac8 100644
--- a/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/smartcasts/DataFlowValueFactory.java
+++ b/compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/smartcasts/DataFlowValueFactory.java
@@ -447,10 +447,10 @@ public class DataFlowValueFactory {
         DeclarationDescriptor containingDeclaration = propertyDescriptor.getContainingDeclaration();
         if (containingDeclaration instanceof ClassDescriptor) {
             ClassDescriptor classDescriptor = (ClassDescriptor) containingDeclaration;
-            if (classDescriptor.getModality().isOverridable() && propertyDescriptor.getModality().isOverridable()) return false;
+            if (classDescriptor.getModality().isOverridable() && ModalityKt.isOverridable(propertyDescriptor)) return false;
         }
         else {
-            if (propertyDescriptor.getModality().isOverridable()) {
+            if (ModalityKt.isOverridable(propertyDescriptor)) {
                 throw new IllegalStateException("Property outside a class must not be overridable: " + propertyDescriptor.getName());
             }
         }
diff --git a/compiler/frontend/src/org/jetbrains/kotlin/resolve/constants/evaluate/ConstantExpressionEvaluator.kt b/compiler/frontend/src/org/jetbrains/kotlin/resolve/constants/evaluate/ConstantExpressionEvaluator.kt
index a06c890c11d..a90fefc57c6 100644
--- a/compiler/frontend/src/org/jetbrains/kotlin/resolve/constants/evaluate/ConstantExpressionEvaluator.kt
+++ b/compiler/frontend/src/org/jetbrains/kotlin/resolve/constants/evaluate/ConstantExpressionEvaluator.kt
@@ -531,7 +531,7 @@ private class ConstantExpressionEvaluatorVisitor(
         if (resolvedCall != null) {
             val callableDescriptor = resolvedCall.resultingDescriptor
             if (callableDescriptor is VariableDescriptor) {
-                if (callableDescriptor is PropertyDescriptor && callableDescriptor.modality.isOverridable) return null
+                if (callableDescriptor is PropertyDescriptor && callableDescriptor.isOverridable) return null
 
                 val variableInitializer = callableDescriptor.compileTimeInitializer ?: return null
 
diff --git a/core/descriptors/src/org/jetbrains/kotlin/descriptors/Modality.kt b/core/descriptors/src/org/jetbrains/kotlin/descriptors/Modality.kt
index 711034d9806..ab3fad4b6b7 100644
--- a/core/descriptors/src/org/jetbrains/kotlin/descriptors/Modality.kt
+++ b/core/descriptors/src/org/jetbrains/kotlin/descriptors/Modality.kt
@@ -35,3 +35,7 @@ enum class Modality private constructor(val isOverridable: Boolean) {
         }
     }
 }
+
+val CallableMemberDescriptor.isOverridable: Boolean
+    get() = modality != Modality.FINAL
+
diff --git a/idea/src/org/jetbrains/kotlin/idea/quickfix/ChangeMemberFunctionSignatureFix.kt b/idea/src/org/jetbrains/kotlin/idea/quickfix/ChangeMemberFunctionSignatureFix.kt
index a981bcf10b1..6bf7d31cd3f 100644
--- a/idea/src/org/jetbrains/kotlin/idea/quickfix/ChangeMemberFunctionSignatureFix.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/quickfix/ChangeMemberFunctionSignatureFix.kt
@@ -180,7 +180,7 @@ class ChangeMemberFunctionSignatureFix private constructor(
             val name = functionDescriptor.name
             return containingClass.defaultType.supertypes()
                     .flatMap { supertype -> supertype.memberScope.getContributedFunctions(name, NoLookupLocation.FROM_IDE) }
-                    .filter { it.kind.isReal && it.modality.isOverridable }
+                    .filter { it.kind.isReal && it.isOverridable }
         }
     }
 
diff --git a/idea/src/org/jetbrains/kotlin/idea/quickfix/MakeOverriddenMemberOpenFix.kt b/idea/src/org/jetbrains/kotlin/idea/quickfix/MakeOverriddenMemberOpenFix.kt
index b20bf53e569..e22b13c809b 100644
--- a/idea/src/org/jetbrains/kotlin/idea/quickfix/MakeOverriddenMemberOpenFix.kt
+++ b/idea/src/org/jetbrains/kotlin/idea/quickfix/MakeOverriddenMemberOpenFix.kt
@@ -25,6 +25,7 @@ import org.jetbrains.kotlin.descriptors.CallableMemberDescriptor.Kind.DECLARATIO
 import org.jetbrains.kotlin.descriptors.CallableMemberDescriptor.Kind.DELEGATION
 import org.jetbrains.kotlin.descriptors.CallableMemberDescriptor.Kind.FAKE_OVERRIDE
 import org.jetbrains.kotlin.descriptors.CallableMemberDescriptor.Kind.SYNTHESIZED
+import org.jetbrains.kotlin.descriptors.isOverridable
 import org.jetbrains.kotlin.diagnostics.Diagnostic
 import org.jetbrains.kotlin.idea.caches.resolve.resolveToDescriptor
 import org.jetbrains.kotlin.idea.core.quickfix.QuickFixUtil
@@ -110,7 +111,7 @@ public class MakeOverriddenMemberOpenFix(declaration: KtDeclaration) : KotlinQui
 
         private fun retainNonOverridableMembers(
                 callableMemberDescriptors: Collection<CallableMemberDescriptor>): Collection<CallableMemberDescriptor> {
-            return callableMemberDescriptors.filter { !it.modality.isOverridable }
+            return callableMemberDescriptors.filter { !it.isOverridable }
         }
 
         override fun createAction(diagnostic: Diagnostic): IntentionAction? {
diff --git a/js/js.translator/src/org/jetbrains/kotlin/js/translate/utils/JsDescriptorUtils.java b/js/js.translator/src/org/jetbrains/kotlin/js/translate/utils/JsDescriptorUtils.java
index f141643a3a3..448c6d4667f 100644
--- a/js/js.translator/src/org/jetbrains/kotlin/js/translate/utils/JsDescriptorUtils.java
+++ b/js/js.translator/src/org/jetbrains/kotlin/js/translate/utils/JsDescriptorUtils.java
@@ -151,7 +151,7 @@ public final class JsDescriptorUtils {
         return !isExtension(propertyDescriptor) &&
                isDefaultAccessor(propertyDescriptor.getGetter()) &&
                isDefaultAccessor(propertyDescriptor.getSetter()) &&
-               !propertyDescriptor.getModality().isOverridable();
+               !ModalityKt.isOverridable(propertyDescriptor);
     }
 
     public static boolean isBuiltin(@NotNull DeclarationDescriptor descriptor) {
diff --git a/js/js.translator/src/org/jetbrains/kotlin/js/translate/utils/TranslationUtils.java b/js/js.translator/src/org/jetbrains/kotlin/js/translate/utils/TranslationUtils.java
index 521285470a9..f2d2979e760 100644
--- a/js/js.translator/src/org/jetbrains/kotlin/js/translate/utils/TranslationUtils.java
+++ b/js/js.translator/src/org/jetbrains/kotlin/js/translate/utils/TranslationUtils.java
@@ -67,7 +67,7 @@ public final class TranslationUtils {
     @NotNull
     private static JsPropertyInitializer translateExtensionFunctionAsEcma5DataDescriptor(@NotNull JsFunction function,
             @NotNull FunctionDescriptor descriptor, @NotNull TranslationContext context) {
-        JsObjectLiteral meta = createDataDescriptor(function, descriptor.getModality().isOverridable(), false);
+        JsObjectLiteral meta = createDataDescriptor(function, ModalityKt.isOverridable(descriptor), false);
         return new JsPropertyInitializer(context.getNameForDescriptor(descriptor).makeRef(), meta);
     }