diff --git a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/IDELightClassGenerationSupport.kt b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/IDELightClassGenerationSupport.kt
index 98075e0522a..eab7705750f 100644
--- a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/IDELightClassGenerationSupport.kt
+++ b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/caches/resolve/IDELightClassGenerationSupport.kt
@@ -47,11 +47,10 @@ import org.jetbrains.kotlin.idea.decompiler.navigation.SourceNavigationHelper
 import org.jetbrains.kotlin.idea.stubindex.*
 import org.jetbrains.kotlin.idea.stubindex.KotlinSourceFilterScope.Companion.sourceAndClassFiles
 import org.jetbrains.kotlin.idea.util.ProjectRootsUtil
-import org.jetbrains.kotlin.lexer.KtTokens
+import org.jetbrains.kotlin.idea.util.application.runReadAction
 import org.jetbrains.kotlin.load.kotlin.PackagePartClassUtils
 import org.jetbrains.kotlin.name.FqName
 import org.jetbrains.kotlin.psi.*
-import org.jetbrains.kotlin.resolve.BindingContext
 import org.jetbrains.kotlin.resolve.lazy.BodyResolveMode
 import org.jetbrains.kotlin.resolve.lazy.NoDescriptorForDeclarationException
 import org.jetbrains.kotlin.resolve.scopes.MemberScope
@@ -93,11 +92,15 @@ class IDELightClassGenerationSupport(private val project: Project) : LightClassG
     }
 
     override fun findClassOrObjectDeclarations(fqName: FqName, searchScope: GlobalSearchScope): Collection<KtClassOrObject> {
-        return KotlinFullClassNameIndex.getInstance().get(fqName.asString(), project, sourceAndClassFiles(searchScope, project))
+        return runReadAction {
+            KotlinFullClassNameIndex.getInstance().get(fqName.asString(), project, sourceAndClassFiles(searchScope, project))
+        }
     }
 
     override fun findFilesForPackage(fqName: FqName, searchScope: GlobalSearchScope): Collection<KtFile> {
-        return PackageIndexUtil.findFilesWithExactPackage(fqName, sourceAndClassFiles(searchScope, project), project)
+        return runReadAction {
+            PackageIndexUtil.findFilesWithExactPackage(fqName, sourceAndClassFiles(searchScope, project), project)
+        }
     }
 
     override fun findClassOrObjectDeclarationsInPackage(
@@ -195,7 +198,9 @@ class IDELightClassGenerationSupport(private val project: Project) : LightClassG
     }
 
     override fun findFilesForFacade(facadeFqName: FqName, scope: GlobalSearchScope): Collection<KtFile> {
-        return KotlinFileFacadeFqNameIndex.INSTANCE.get(facadeFqName.asString(), project, scope)
+        return runReadAction {
+            KotlinFileFacadeFqNameIndex.INSTANCE.get(facadeFqName.asString(), project, scope)
+        }
     }
 
     override fun resolveToDescriptor(declaration: KtDeclaration): DeclarationDescriptor? {
@@ -212,12 +217,16 @@ class IDELightClassGenerationSupport(private val project: Project) : LightClassG
     override fun analyzeFully(element: KtElement) = element.analyzeFully()
 
     override fun getFacadeNames(packageFqName: FqName, scope: GlobalSearchScope): Collection<String> {
-        val facadeFilesInPackage = KotlinFileFacadeClassByPackageIndex.getInstance().get(packageFqName.asString(), project, scope)
+        val facadeFilesInPackage = runReadAction {
+            KotlinFileFacadeClassByPackageIndex.getInstance().get(packageFqName.asString(), project, scope)
+        }
         return facadeFilesInPackage.map { it.javaFileFacadeFqName.shortName().asString() }
     }
 
     override fun getFacadeClassesInPackage(packageFqName: FqName, scope: GlobalSearchScope): Collection<PsiClass> {
-        val facadeFilesInPackage = KotlinFileFacadeClassByPackageIndex.getInstance().get(packageFqName.asString(), project, scope)
+        val facadeFilesInPackage = runReadAction {
+            KotlinFileFacadeClassByPackageIndex.getInstance().get(packageFqName.asString(), project, scope)
+        }
         val groupedByFqNameAndModuleInfo = facadeFilesInPackage.groupBy {
             Pair(it.javaFileFacadeFqName, it.getModuleInfo())
         }
diff --git a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/stubindex/StaticFacadeIndexUtil.kt b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/stubindex/StaticFacadeIndexUtil.kt
index 7d1fca56475..b6249011af3 100644
--- a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/stubindex/StaticFacadeIndexUtil.kt
+++ b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/stubindex/StaticFacadeIndexUtil.kt
@@ -18,9 +18,9 @@ package org.jetbrains.kotlin.idea.stubindex
 
 import com.intellij.openapi.project.Project
 import com.intellij.psi.search.GlobalSearchScope
+import org.jetbrains.kotlin.idea.util.application.runReadAction
 import org.jetbrains.kotlin.load.kotlin.PackagePartClassUtils
 import org.jetbrains.kotlin.name.FqName
-import org.jetbrains.kotlin.name.Name
 import org.jetbrains.kotlin.psi.KtFile
 
 object StaticFacadeIndexUtil {
@@ -30,14 +30,16 @@ object StaticFacadeIndexUtil {
             partFqName: FqName,
             searchScope: GlobalSearchScope,
             project: Project
-    ) : Collection<KtFile> =
-            PackagePartClassUtils.getFilesWithCallables(
-                    KotlinFileFacadeFqNameIndex.INSTANCE.get(partFqName.asString(), project, searchScope))
+    ) : Collection<KtFile> = runReadAction {
+        PackagePartClassUtils.getFilesWithCallables(
+                KotlinFileFacadeFqNameIndex.INSTANCE.get(partFqName.asString(), project, searchScope))
+    }
 
     @JvmStatic fun getMultifileClassForPart(
             partFqName: FqName,
             searchScope: GlobalSearchScope,
             project: Project
-    ): Collection<KtFile> =
-            KotlinMultifileClassPartIndex.INSTANCE.get(partFqName.asString(), project, searchScope)
+    ): Collection<KtFile> = runReadAction {
+        KotlinMultifileClassPartIndex.INSTANCE.get(partFqName.asString(), project, searchScope)
+    }
 }
\ No newline at end of file
diff --git a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/stubindex/resolve/StubBasedPackageMemberDeclarationProvider.kt b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/stubindex/resolve/StubBasedPackageMemberDeclarationProvider.kt
index 85aced0eb5a..12019cbb111 100644
--- a/idea/idea-analysis/src/org/jetbrains/kotlin/idea/stubindex/resolve/StubBasedPackageMemberDeclarationProvider.kt
+++ b/idea/idea-analysis/src/org/jetbrains/kotlin/idea/stubindex/resolve/StubBasedPackageMemberDeclarationProvider.kt
@@ -18,18 +18,19 @@ package org.jetbrains.kotlin.idea.stubindex.resolve
 
 import com.intellij.openapi.project.Project
 import com.intellij.psi.search.GlobalSearchScope
-import org.jetbrains.kotlin.psi.*
-import org.jetbrains.kotlin.resolve.lazy.declarations.PackageMemberDeclarationProvider
-import org.jetbrains.kotlin.name.FqName
-import org.jetbrains.kotlin.name.Name
-import org.jetbrains.kotlin.resolve.lazy.data.KtClassLikeInfo
-import org.jetbrains.kotlin.resolve.lazy.data.KtClassInfoUtil
-import org.jetbrains.kotlin.resolve.lazy.ResolveSessionUtils
-import java.util.ArrayList
-import org.jetbrains.kotlin.resolve.scopes.DescriptorKindFilter
 import com.intellij.psi.stubs.StringStubIndexExtension
 import org.jetbrains.kotlin.idea.stubindex.*
+import org.jetbrains.kotlin.idea.util.application.runReadAction
+import org.jetbrains.kotlin.name.FqName
+import org.jetbrains.kotlin.name.Name
+import org.jetbrains.kotlin.psi.*
+import org.jetbrains.kotlin.resolve.lazy.ResolveSessionUtils
+import org.jetbrains.kotlin.resolve.lazy.data.KtClassInfoUtil
+import org.jetbrains.kotlin.resolve.lazy.data.KtClassLikeInfo
 import org.jetbrains.kotlin.resolve.lazy.data.KtScriptInfo
+import org.jetbrains.kotlin.resolve.lazy.declarations.PackageMemberDeclarationProvider
+import org.jetbrains.kotlin.resolve.scopes.DescriptorKindFilter
+import java.util.*
 
 class StubBasedPackageMemberDeclarationProvider(
         private val fqName: FqName,
@@ -62,20 +63,26 @@ class StubBasedPackageMemberDeclarationProvider(
 
     override fun getClassOrObjectDeclarations(name: Name): Collection<KtClassLikeInfo> {
         val result = ArrayList<KtClassLikeInfo>()
-        KotlinFullClassNameIndex.getInstance().get(childName(name), project, searchScope)
-                .mapTo(result) { KtClassInfoUtil.createClassLikeInfo(it) }
+        runReadAction {
+            KotlinFullClassNameIndex.getInstance().get(childName(name), project, searchScope)
+                    .mapTo(result) { KtClassInfoUtil.createClassLikeInfo(it) }
 
-        KotlinScriptFqnIndex.instance.get(childName(name), project, searchScope)
-                .mapTo(result, ::KtScriptInfo)
+            KotlinScriptFqnIndex.instance.get(childName(name), project, searchScope)
+                    .mapTo(result, ::KtScriptInfo)
+        }
         return result
     }
 
     override fun getFunctionDeclarations(name: Name): Collection<KtNamedFunction> {
-        return KotlinTopLevelFunctionFqnNameIndex.getInstance().get(childName(name), project, searchScope)
+        return runReadAction {
+            KotlinTopLevelFunctionFqnNameIndex.getInstance().get(childName(name), project, searchScope)
+        }
     }
 
     override fun getPropertyDeclarations(name: Name): Collection<KtProperty> {
-        return KotlinTopLevelPropertyFqnNameIndex.getInstance().get(childName(name), project, searchScope)
+        return runReadAction {
+            KotlinTopLevelPropertyFqnNameIndex.getInstance().get(childName(name), project, searchScope)
+        }
     }
 
     override fun getAllDeclaredSubPackages(nameFilter: (Name) -> Boolean): Collection<FqName> {