don't suggest constant names in second basic completion

java/java-impl/src/com/intellij/codeInsight/completion/JavaBasicToClassNameDelegator.java

@@ -0,0 +1,58 @@
+/*
+ * Copyright 2000-2011 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.codeInsight.completion;
+
+import com.intellij.codeInsight.lookup.AutoCompletionPolicy;
+import com.intellij.codeInsight.lookup.LookupElement;
+import com.intellij.openapi.util.Ref;
+import com.intellij.util.Consumer;
+
+/**
+ * @author peter
+ */
+public class JavaBasicToClassNameDelegator extends CompletionContributor {
+
+  @Override
+  public void fillCompletionVariants(final CompletionParameters parameters, final CompletionResultSet result) {
+    if (parameters.getCompletionType() != CompletionType.BASIC ||
+        parameters.getInvocationCount() != 1 ||
+        !JavaCompletionContributor.mayStartClassName(result, false) ||
+        !JavaCompletionContributor.isClassNamePossible(parameters.getPosition())) {
+      return;
+    }
+
+    final Ref<Boolean> empty = Ref.create(true);
+    result.runRemainingContributors(parameters, new Consumer<CompletionResult>() {
+      public void consume(final CompletionResult lookupElement) {
+        empty.set(false);
+        result.passResult(lookupElement);
+      }
+    });
+
+    if (empty.get()) {
+      JavaClassNameCompletionContributor.addAllClasses(parameters, JavaCompletionSorting.addJavaSorting(parameters, result), new Consumer<LookupElement>() {
+        @Override
+        public void consume(LookupElement element) {
+          JavaPsiClassReferenceElement classElement = element.as(JavaPsiClassReferenceElement.CLASS_CONDITION_KEY);
+          if (classElement != null) {
+            classElement.setAutoCompletionPolicy(AutoCompletionPolicy.NEVER_AUTOCOMPLETE);
+          }
+          result.addElement(element);
+        }
+      });
+    }
+  }
+}

java/java-impl/src/com/intellij/codeInsight/completion/XmlBasicToClassNameDelegator.java

@@ -24,16 +24,12 @@ import com.intellij.psi.PsiFile;
 /**
  * @author peter
  */
-public class BasicToClassNameDelegator extends AbstractBasicToClassNameDelegator {
+public class XmlBasicToClassNameDelegator extends AbstractBasicToClassNameDelegator {
 
   @Override
   protected boolean isClassNameCompletionSupported(CompletionResultSet result, PsiFile file, PsiElement position) {
     if (!JavaCompletionContributor.mayStartClassName(result, false)) return false;
 
-    if (file.getLanguage() == StdLanguages.JAVA) {
-      return JavaCompletionContributor.isClassNamePossible(position);
-    }
-
     return file.getLanguage().isKindOf(StdLanguages.XML);
   }
 

resources/src/META-INF/IdeaPlugin.xml

@@ -193,8 +193,10 @@
     <completion.confidence language="JAVA" implementationClass="com.intellij.codeInsight.completion.AlwaysFocusLookup" id="javaTrue" order="last"/>
     <completion.confidence language="JAVA" implementationClass="com.intellij.codeInsight.completion.SkipAutopopupInStrings" id="javaSkipAutopopupInStrings"/>
 
-    <completion.contributor language="any" implementationClass="com.intellij.codeInsight.completion.BasicToClassNameDelegator" id="basic2ClassName"
-                            order="first, before javaMemberName, after xml"/>
+    <completion.contributor language="JAVA" implementationClass="com.intellij.codeInsight.completion.JavaBasicToClassNameDelegator" id="javaBasic2ClassName"
+                            order="first, before javaMemberName"/>
+    <completion.contributor language="XML" implementationClass="com.intellij.codeInsight.completion.XmlBasicToClassNameDelegator" id="basic2ClassName"
+                            order="first, after xml"/>
     <completion.contributor language="JAVA" implementationClass="com.intellij.codeInsight.completion.JavaCompletionContributor" id="javaLegacy"
                             order="last, before legacy, before default, before javaClassName"/>
     <completion.contributor language="any" implementationClass="com.intellij.codeInsight.completion.JavaClassReferenceCompletionContributor"