From 2fd1cd738eb33b92005bd41406f20d94df73b9dd Mon Sep 17 00:00:00 2001
From: peter <peter@jetbrains.com>
Date: Mon, 21 Nov 2011 16:14:27 +0100
Subject: [PATCH] if a prefix entered during autopopup matches only some
 scrambled class, don't cancel the lookup (IDEA-76928)

---
 .../completion/JavaCharFilter.java            | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/java/java-impl/src/com/intellij/codeInsight/completion/JavaCharFilter.java b/java/java-impl/src/com/intellij/codeInsight/completion/JavaCharFilter.java
index 8c8289d98fcd..0a7274a33f07 100644
--- a/java/java-impl/src/com/intellij/codeInsight/completion/JavaCharFilter.java
+++ b/java/java-impl/src/com/intellij/codeInsight/completion/JavaCharFilter.java
@@ -55,14 +55,29 @@ public class JavaCharFilter extends CharFilter {
     
     Object o = item.getObject();
     if (o instanceof PsiClass && ((PsiClass)o).getName().length() > lookup.itemPattern(item).length()) {
-      if (PsiShortNamesCache.getInstance(file.getProject()).getClassesByName(lookup.itemPattern(item), file.getResolveScope()).length > 0) {
-        return true;
+      for (PsiClass aClass : PsiShortNamesCache.getInstance(file.getProject()).getClassesByName(lookup.itemPattern(item), file.getResolveScope())) {
+        if (!isObfuscated(aClass)) {
+          return true;
+        }
       }
     }
     
     return false;
   }
 
+  private static boolean isObfuscated(PsiClass psiClass) {
+    if (!(psiClass instanceof PsiCompiledElement)) {
+      return false;
+    }
+
+    String name = psiClass.getName();
+    if (name == null) {
+      return false;
+    }
+    
+    return name.length() == 1 && Character.isLowerCase(name.charAt(0));
+  }
+
   public Result acceptChar(char c, final int prefixLength, final Lookup lookup) {
     if (!lookup.isCompletion()) return null;