1 files changed, 74 insertions, 0 deletions
diff --git a/plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/inheritance/ExtendsConcreteCollectionInspectionBase.java b/plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/inheritance/ExtendsConcreteCollectionInspectionBase.java
new file mode 100644
index 000000000000..5a9f275c606a
--- /dev/null
+++ b/plugins/InspectionGadgets/InspectionGadgetsAnalysis/src/com/siyeh/ig/inheritance/ExtendsConcreteCollectionInspectionBase.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2000-2013 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.siyeh.ig.inheritance;
+
+import com.intellij.psi.PsiAnonymousClass;
+import com.intellij.psi.PsiClass;
+import com.siyeh.InspectionGadgetsBundle;
+import com.siyeh.ig.BaseInspection;
+import com.siyeh.ig.BaseInspectionVisitor;
+import com.siyeh.ig.psiutils.CollectionUtils;
+import org.jetbrains.annotations.NotNull;
+
+public class ExtendsConcreteCollectionInspectionBase extends BaseInspection {
+  @Override
+  @NotNull
+  public String getID() {
+    return "ClassExtendsConcreteCollection";
+  }
+
+  @Override
+  @NotNull
+  public String getDisplayName() {
+    return InspectionGadgetsBundle.message(
+      "extends.concrete.collection.display.name");
+  }
+
+  @Override
+  @NotNull
+  public String buildErrorString(Object... infos) {
+    final PsiClass superClass = (PsiClass)infos[0];
+    final PsiClass aClass = (PsiClass)infos[1];
+    if (aClass instanceof PsiAnonymousClass) {
+      return InspectionGadgetsBundle.message("anonymous.extends.concrete.collection.problem.descriptor", superClass.getQualifiedName());
+    } else {
+      return InspectionGadgetsBundle.message("extends.concrete.collection.problem.descriptor", superClass.getQualifiedName());
+    }
+  }
+
+  @Override
+  public BaseInspectionVisitor buildVisitor() {
+    return new ExtendsConcreteCollectionVisitor();
+  }
+
+  private static class ExtendsConcreteCollectionVisitor extends BaseInspectionVisitor {
+
+    @Override
+    public void visitClass(@NotNull PsiClass aClass) {
+      if (aClass.isInterface() || aClass.isAnnotationType() || aClass.isEnum()) {
+        return;
+      }
+      final PsiClass superClass = aClass.getSuperClass();
+      if (superClass == null) {
+        return;
+      }
+      if (!CollectionUtils.isCollectionClass(superClass)) {
+        return;
+      }
+      registerClassError(aClass, superClass, aClass);
+    }
+  }
+}