diff --git a/java/java-impl/src/com/intellij/codeInsight/hint/api/impls/MethodParameterInfoHandler.java b/java/java-impl/src/com/intellij/codeInsight/hint/api/impls/MethodParameterInfoHandler.java
index c8486e3dfd5e..e69cc03ccbbd 100644
--- a/java/java-impl/src/com/intellij/codeInsight/hint/api/impls/MethodParameterInfoHandler.java
+++ b/java/java-impl/src/com/intellij/codeInsight/hint/api/impls/MethodParameterInfoHandler.java
@@ -125,7 +125,7 @@ public class MethodParameterInfoHandler implements ParameterInfoHandlerWithTabAc
     for (int i = 0; i < candidates.length; i++) {
       CandidateInfo candidate = (CandidateInfo)candidates[i];
       PsiMethod method = (PsiMethod)candidate.getElement();
-      PsiSubstitutor substitutor = candidate instanceof MethodCandidateInfo ? ((MethodCandidateInfo)candidate).inferTypeArguments(true) : candidate.getSubstitutor();
+      PsiSubstitutor substitutor = candidate instanceof MethodCandidateInfo && ((MethodCandidateInfo)candidate).isInferencePossible() ? ((MethodCandidateInfo)candidate).inferTypeArguments(true) : candidate.getSubstitutor();
       assert substitutor != null;
 
       if (!method.isValid() || !substitutor.isValid()) {
@@ -408,7 +408,7 @@ public class MethodParameterInfoHandler implements ParameterInfoHandlerWithTabAc
   public void updateUI(final Object p, final ParameterInfoUIContext context) {
     if (p instanceof CandidateInfo) {
       CandidateInfo info = (CandidateInfo)p;
-      updateMethodPresentation((PsiMethod)info.getElement(), info instanceof MethodCandidateInfo ? ((MethodCandidateInfo)info).inferTypeArguments(true) : info.getSubstitutor(), context);
+      updateMethodPresentation((PsiMethod)info.getElement(), info instanceof MethodCandidateInfo && ((MethodCandidateInfo)info).isInferencePossible() ? ((MethodCandidateInfo)info).inferTypeArguments(true) : info.getSubstitutor(), context);
     }
     else {
       updateMethodPresentation((PsiMethod)p, null, context);
diff --git a/java/java-psi-api/src/com/intellij/psi/infos/MethodCandidateInfo.java b/java/java-psi-api/src/com/intellij/psi/infos/MethodCandidateInfo.java
index fdaeb1f7b9a0..1b99fe323bad 100644
--- a/java/java-psi-api/src/com/intellij/psi/infos/MethodCandidateInfo.java
+++ b/java/java-psi-api/src/com/intellij/psi/infos/MethodCandidateInfo.java
@@ -136,6 +136,10 @@ public class MethodCandidateInfo extends CandidateInfo{
                                      myArgumentList.getParent(), forCompletion);
   }
 
+  public boolean isInferencePossible() {
+    return myArgumentList.isValid();
+  }
+
   public static class ApplicabilityLevel {
     public static final int NOT_APPLICABLE = 1;
     public static final int VARARGS = 2;