diff --git a/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/JavaBindingContext.java b/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/JavaBindingContext.java
index 5dc42a3d083..b0aa43ed7e0 100644
--- a/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/JavaBindingContext.java
+++ b/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/JavaBindingContext.java
@@ -19,7 +19,6 @@ package org.jetbrains.jet.lang.resolve.java;
 import org.jetbrains.jet.lang.descriptors.DeclarationDescriptor;
 import org.jetbrains.jet.lang.descriptors.NamespaceDescriptor;
 import org.jetbrains.jet.lang.resolve.BindingContext;
-import org.jetbrains.jet.util.slicedmap.BasicWritableSlice;
 import org.jetbrains.jet.util.slicedmap.Slices;
 import org.jetbrains.jet.util.slicedmap.WritableSlice;
 
@@ -33,11 +32,9 @@ public class JavaBindingContext {
     /**
      * @see BindingContext#NAMESPACE_IS_SRC
      */
-    public static final WritableSlice<NamespaceDescriptor, JavaNamespaceKind> JAVA_NAMESPACE_KIND =
-            Slices.createSimpleSlice();
+    public static final WritableSlice<NamespaceDescriptor, JavaNamespaceKind> JAVA_NAMESPACE_KIND = Slices.createSimpleSlice();
 
-    public static final WritableSlice<DeclarationDescriptor, List<String>> LOAD_FROM_JAVA_SIGNATURE_ERRORS =
-            new BasicWritableSlice<DeclarationDescriptor, List<String>>(Slices.ONLY_REWRITE_TO_EQUAL, true);
+    public static final WritableSlice<DeclarationDescriptor, List<String>> LOAD_FROM_JAVA_SIGNATURE_ERRORS = Slices.createCollectiveSlice();
 
     private JavaBindingContext() {
     }
diff --git a/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/resolver/TraceBasedErrorReporter.java b/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/resolver/TraceBasedErrorReporter.java
index a4f4709f834..0feacda9caf 100644
--- a/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/resolver/TraceBasedErrorReporter.java
+++ b/compiler/frontend.java/src/org/jetbrains/jet/lang/resolve/java/resolver/TraceBasedErrorReporter.java
@@ -26,7 +26,6 @@ import org.jetbrains.jet.lang.resolve.BindingContextUtils;
 import org.jetbrains.jet.lang.resolve.BindingTrace;
 import org.jetbrains.jet.lang.resolve.kotlin.KotlinJvmBinaryClass;
 import org.jetbrains.jet.lang.resolve.kotlin.VirtualFileKotlinClass;
-import org.jetbrains.jet.util.slicedmap.BasicWritableSlice;
 import org.jetbrains.jet.util.slicedmap.Slices;
 import org.jetbrains.jet.util.slicedmap.WritableSlice;
 
@@ -37,8 +36,8 @@ import static org.jetbrains.jet.lang.diagnostics.Errors.CANNOT_INFER_VISIBILITY;
 public class TraceBasedErrorReporter implements ErrorReporter {
     private static final Logger LOG = Logger.getInstance(TraceBasedErrorReporter.class);
 
-    public static final WritableSlice<VirtualFileKotlinClass, Integer> ABI_VERSION_ERRORS =
-            new BasicWritableSlice<VirtualFileKotlinClass, Integer>(Slices.ONLY_REWRITE_TO_EQUAL, true);
+    public static final WritableSlice<VirtualFileKotlinClass, Integer> ABI_VERSION_ERRORS = Slices.createCollectiveSlice();
+
     private BindingTrace trace;
 
     @Inject
diff --git a/compiler/frontend/src/org/jetbrains/jet/util/slicedmap/Slices.java b/compiler/frontend/src/org/jetbrains/jet/util/slicedmap/Slices.java
index c3310fcebb3..bf3276e13e5 100644
--- a/compiler/frontend/src/org/jetbrains/jet/util/slicedmap/Slices.java
+++ b/compiler/frontend/src/org/jetbrains/jet/util/slicedmap/Slices.java
@@ -64,6 +64,10 @@ public class Slices {
         return new BasicWritableSlice<K, V>(ONLY_REWRITE_TO_EQUAL);
     }
 
+    public static <K, V> WritableSlice<K, V> createCollectiveSlice() {
+        return new BasicWritableSlice<K, V>(ONLY_REWRITE_TO_EQUAL, true);
+    }
+
     public static <K> WritableSlice<K, Boolean> createSimpleSetSlice() {
         return createRemovableSetSlice();
     }