From 2a3a6c499ab50c2c36aad0a33d6f244e9fc5872b Mon Sep 17 00:00:00 2001
From: unknown <Maxim.Medvedev@.Labs.IntelliJ.Net>
Date: Mon, 19 Oct 2009 16:27:28 +0400
Subject: [PATCH] IDEADEV-40856: Gant: ClassCastException at
 GroovyParameterInfoHandler.updateUI() on typing gant task call

---
 .../lang/parameterInfo/GroovyParameterInfoHandler.java     | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/plugins/groovy/src/org/jetbrains/plugins/groovy/lang/parameterInfo/GroovyParameterInfoHandler.java b/plugins/groovy/src/org/jetbrains/plugins/groovy/lang/parameterInfo/GroovyParameterInfoHandler.java
index b9892cf03365..175bfc17b9ef 100644
--- a/plugins/groovy/src/org/jetbrains/plugins/groovy/lang/parameterInfo/GroovyParameterInfoHandler.java
+++ b/plugins/groovy/src/org/jetbrains/plugins/groovy/lang/parameterInfo/GroovyParameterInfoHandler.java
@@ -20,9 +20,11 @@ import com.intellij.codeInsight.completion.JavaCompletionUtil;
 import com.intellij.codeInsight.lookup.LookupElement;
 import com.intellij.codeInsight.lookup.LookupItem;
 import com.intellij.lang.parameterInfo.*;
+import com.intellij.openapi.util.Condition;
 import com.intellij.psi.*;
 import com.intellij.psi.util.PsiTreeUtil;
 import com.intellij.util.ArrayUtil;
+import com.intellij.util.containers.ContainerUtil;
 import com.intellij.util.text.CharArrayUtil;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.plugins.groovy.lang.documentation.GroovyPresentationUtil;
@@ -135,6 +137,11 @@ public class GroovyParameterInfoHandler implements ParameterInfoHandler<GroovyPs
     } else if (place instanceof GrReferenceExpression) {
       variants = ((GrReferenceExpression) place).getSameNameVariants();
     }
+    final List<GroovyResolveResult> namedElements = ContainerUtil.findAll(variants, new Condition<GroovyResolveResult>() {
+      public boolean value(GroovyResolveResult groovyResolveResult) {
+        return groovyResolveResult.getElement() instanceof PsiNamedElement;
+      }
+    });
     context.setItemsToShow(variants);
     context.showHint(place, place.getTextRange().getStartOffset(), this);
   }