class is a valid suggestion in method body

java/java-impl/src/com/intellij/codeInsight/completion/Java15CompletionData.java

@@ -50,15 +50,6 @@ public class Java15CompletionData extends JavaCompletionData {
 
       registerVariant(variant);
     }
-
-    {
-      final CompletionVariant variant = new CompletionVariant(PsiJavaFile.class, CLASS_START);
-      variant.includeScopeClass(PsiClass.class);
-
-      variant.addCompletion(PsiKeyword.ENUM, TailType.HUMBLE_SPACE_BEFORE_WORD);
-      registerVariant(variant);
-    }
-
   }
 
   protected void initVariantsInClassScope() {

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

@@ -138,17 +138,6 @@ public class JavaCompletionData extends JavaAwareCompletionData {
         not(psiElement().inside(PsiAnnotation.class)),
         not(START_SWITCH));
 
-  public static final AndFilter CLASS_START = new AndFilter(
-    new OrFilter(
-      END_OF_BLOCK,
-      new PatternFilter(psiElement().afterLeaf(
-        or(
-          psiElement().withoutText(".").inside(psiElement(PsiModifierList.class).withParent(not(psiElement(PsiParameter.class)))).andNot(
-            psiElement().inside(PsiAnnotationParameterList.class)),
-          psiElement().isNull())))
-    ),
-    new PatternFilter(not(psiElement().afterLeaf("@"))));
-
   private static final String[] PRIMITIVE_TYPES = new String[]{
     PsiKeyword.SHORT, PsiKeyword.BOOLEAN,
     PsiKeyword.DOUBLE, PsiKeyword.LONG,
@@ -233,16 +222,6 @@ public class JavaCompletionData extends JavaAwareCompletionData {
   }
 
   protected void initVariantsInFileScope(){
-    {
-      final CompletionVariant variant = new CompletionVariant(PsiJavaFile.class, CLASS_START);
-      variant.includeScopeClass(PsiClass.class);
-
-      variant.addCompletion(PsiKeyword.CLASS);
-      variant.addCompletion(PsiKeyword.INTERFACE);
-
-      registerVariant(variant);
-    }
-
   }
 
   /**
@@ -513,11 +492,17 @@ public class JavaCompletionData extends JavaAwareCompletionData {
       result.addElement(TailTypeDecorator.withTail(createKeyword(position, PsiKeyword.FINAL), TailType.HUMBLE_SPACE_BEFORE_WORD));
     }
 
-    if (CLASS_START.isAcceptable(position, position) &&
-        PsiTreeUtil.getNonStrictParentOfType(position, PsiLiteralExpression.class, PsiComment.class) == null) {
+    if (isSuitableForClass(position)) {
       for (String s : ModifierChooser.getKeywords(position)) {
         result.addElement(new OverrideableSpace(createKeyword(position, s), TailType.HUMBLE_SPACE_BEFORE_WORD));
       }
+      result.addElement(new OverrideableSpace(createKeyword(position, PsiKeyword.CLASS), TailType.HUMBLE_SPACE_BEFORE_WORD));
+      if (PsiTreeUtil.getParentOfType(position, PsiCodeBlock.class, true, PsiMember.class) == null) {
+        result.addElement(new OverrideableSpace(createKeyword(position, PsiKeyword.INTERFACE), TailType.HUMBLE_SPACE_BEFORE_WORD));
+        if (PsiUtil.getLanguageLevel(position).isAtLeast(LanguageLevel.JDK_1_5)) {
+          result.addElement(new OverrideableSpace(createKeyword(position, PsiKeyword.ENUM), TailType.INSERT_SPACE));
+        }
+      }
     }
 
     addPrimitiveTypes(result, position);
@@ -538,6 +523,23 @@ public class JavaCompletionData extends JavaAwareCompletionData {
     }
   }
 
+  public static boolean isSuitableForClass(PsiElement position) {
+    if (psiElement().afterLeaf("@").accepts(position) ||
+        PsiTreeUtil.getNonStrictParentOfType(position, PsiLiteralExpression.class, PsiComment.class) != null) {
+      return false;
+    }
+
+    if (psiElement().afterLeaf(
+      or(
+        psiElement().withoutText(".").inside(psiElement(PsiModifierList.class).withParent(not(psiElement(PsiParameter.class)))).andNot(
+          psiElement().inside(PsiAnnotationParameterList.class)),
+        psiElement().isNull())).accepts(position)) {
+      return true;
+    }
+
+    return END_OF_BLOCK.isAcceptable(position, position);
+  }
+
   static void addExpectedTypeMembers(CompletionParameters parameters, final CompletionResultSet result, PsiElement position) {
     for (final ExpectedTypeInfo info : JavaSmartCompletionContributor.getExpectedTypes(parameters)) {
       new JavaMembersGetter(info.getDefaultType(), parameters).addMembers(parameters.getInvocationCount() > 1, new Consumer<LookupElement>() {

java/java-impl/src/com/intellij/codeInsight/template/JavaCodeContextType.java

@@ -159,7 +159,7 @@ public abstract class JavaCodeContextType extends TemplateContextType {
         return false;
       }
 
-      return JavaCompletionData.CLASS_START.isAcceptable(element, element) || JavaCompletionData.isInsideParameterList(element);
+      return JavaCompletionData.isSuitableForClass(element) || JavaCompletionData.isInsideParameterList(element);
     }
   }
 

java/java-tests/testData/codeInsight/completion/keywords/classInMethod.java

@@ -0,0 +1,5 @@
+public class Util {
+  void foo() {
+    c<caret>
+  }
+}

java/java-tests/testSrc/com/intellij/codeInsight/completion/KeywordCompletionTest.java

@@ -102,6 +102,7 @@ public class KeywordCompletionTest extends LightCompletionTestCase {
   public void testCharInAnnotatedParameter() throws Exception { doTest(1, "char"); }
   public void testReturnInTernary() throws Exception { doTest(1, "return"); }
   public void testFinalAfterParameterAnno() throws Exception { doTest(2, "final", "float", "class"); }
+  public void testClassInMethod() throws Exception { doTest(2, "class", "char"); }
 
   public void testTryInExpression() throws Exception {
     configureByFile(BASE_PATH + "/" + getTestName(true) + ".java");