AvoidDefaultSerializableInInnerClasses: enable rule

README.md

@@ -83,7 +83,7 @@ Rule|Level|Source|Enabled|Suppressible
 [AtclauseOrder](#atclauseorder)|javadoc|checkstyle|Yes|
 [AvoidConditionInversion](#avoidconditioninversion)|complexity|sevntu||
 [AvoidConstantAsFirstOperandInCondition](#avoidconstantasfirstoperandincondition)|tweaks|sevntu|Yes|
-[AvoidDefaultSerializableInInnerClasses](#avoiddefaultserializableininnerclasses)|complexity|sevntu||
+[AvoidDefaultSerializableInInnerClasses](#avoiddefaultserializableininnerclasses)|tweaks|sevntu|Yes|
 [AvoidEscapedUnicodeCharacters](#avoidescapedunicodecharacters)|tweaks|checkstyle|Yes|
 [AvoidHidingCauseException](#avoidhidingcauseexception)|tweaks|sevntu|Yes|
 [AvoidInlineConditionals](#avoidinlineconditionals)|complexity|checkstyle|Yes|
@@ -2182,6 +2182,9 @@ Invalid:
 ````
 if (12 == a) {}
 ````
+#### [AvoidDefaultSerializableInInnerClasses](http://sevntu-checkstyle.github.io/sevntu.checkstyle/apidocs/com/github/sevntu/checkstyle/checks/coding/AvoidDefaultSerializableInInnerClassesCheck.html)
+
+Prevent the use of default serialization methods on inner classes. If an inner class needs to implement the Serializable interface, then it *must* implement both `writeObject()` and `readObject()` methods.
 #### [AvoidHidingCauseException](http://sevntu-checkstyle.github.io/sevntu.checkstyle/apidocs/com/github/sevntu/checkstyle/checks/coding/AvoidHidingCauseExceptionCheck.html)
 
 Ensures that an exception is re-thrown properly and is not swallowed by a `catch` block.
@@ -2758,9 +2761,6 @@ As the sevntu check are considered experimental not all those that are not enabl
 #### [AvoidConditionInversion](http://sevntu-checkstyle.github.io/sevntu.checkstyle/apidocs/com/github/sevntu/checkstyle/checks/design/AvoidConditionInversionCheck.html)
 
 Should already be covered by [SimplifyBooleanExpression](simplifybooleanexpression).
-#### [AvoidDefaultSerializableInInnerClasses](http://sevntu-checkstyle.github.io/sevntu.checkstyle/apidocs/com/github/sevntu/checkstyle/checks/coding/AvoidDefaultSerializableInInnerClassesCheck.html)
-
-TODO: enable
 #### [AvoidModifiersForTypes](http://sevntu-checkstyle.github.io/sevntu.checkstyle/apidocs/com/github/sevntu/checkstyle/checks/coding/AvoidModifiersForTypesCheck.html)
 
 Generic rule; doesn't embody a 'quality' check.

builder/src/main/resources/application.yml

@@ -1392,11 +1392,10 @@ rules:
     -
         name: AvoidDefaultSerializableInInnerClasses
         parent: TREEWALKER
-        level: COMPLEXITY
-        enabled: false
+        level: TWEAKS
+        enabled: true
         source: SEVNTU
         uri: http://sevntu-checkstyle.github.io/sevntu.checkstyle/apidocs/com/github/sevntu/checkstyle/checks/coding/AvoidDefaultSerializableInInnerClassesCheck.html
-        reason: "TODO: enable"
     -
         name: AvoidModifiersForTypes
         parent: TREEWALKER

builder/src/main/resources/rules/AvoidDefaultSerializableInInnerClasses.md

@@ -0,0 +1,2 @@
+
+Prevent the use of default serialization methods on inner classes. If an inner class needs to implement the Serializable interface, then it *must* implement both `writeObject()` and `readObject()` methods.

regressions/src/main/java/net/kemitix/checkstyle/regressions/AvoidDefaultSerializableInInnerClasses.java

@@ -0,0 +1,41 @@
+/**
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2017 Paul Campbell
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
+ * and associated documentation files (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies
+ * or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
+ * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
+ * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package net.kemitix.checkstyle.regressions;
+
+import java.io.Serializable;
+
+/**
+ * Regression test for {@code AvoidDefaultSerializableInInnerClasses}.
+ *
+ * @author Paul Campbell (pcampbell@kemitix.net)
+ */
+public class AvoidDefaultSerializableInInnerClasses {
+
+    /**
+     * Inner class should not use default implementations of {@code readObject()} and {@code writeObject()}.
+     */
+    @SuppressWarnings("avoiddefaultserializableininnerclasses")
+    public class InnerClass implements Serializable {
+
+    }
+
+}

ruleset/src/main/resources/net/kemitix/checkstyle-4-tweaks.xml

@@ -177,6 +177,7 @@
 <module name="com.github.sevntu.checkstyle.checks.naming.UniformEnumConstantNameCheck"/>
 <module name="com.github.sevntu.checkstyle.checks.coding.UselessSingleCatchCheck"/>
 <module name="com.github.sevntu.checkstyle.checks.coding.UselessSuperCtorCallCheck"/>
+<module name="com.github.sevntu.checkstyle.checks.coding.AvoidDefaultSerializableInInnerClassesCheck"/>
 <module name="com.github.sevntu.checkstyle.checks.coding.EmptyPublicCtorInClassCheck"/>
 <module name="com.github.sevntu.checkstyle.checks.coding.FinalizeImplementationCheck"/>
 <module name="com.github.sevntu.checkstyle.checks.coding.WhitespaceBeforeArrayInitializerCheck"/>

ruleset/src/main/resources/net/kemitix/checkstyle-5-complexity.xml

@@ -230,6 +230,7 @@
 <module name="com.github.sevntu.checkstyle.checks.naming.UniformEnumConstantNameCheck"/>
 <module name="com.github.sevntu.checkstyle.checks.coding.UselessSingleCatchCheck"/>
 <module name="com.github.sevntu.checkstyle.checks.coding.UselessSuperCtorCallCheck"/>
+<module name="com.github.sevntu.checkstyle.checks.coding.AvoidDefaultSerializableInInnerClassesCheck"/>
 <module name="com.github.sevntu.checkstyle.checks.coding.EmptyPublicCtorInClassCheck"/>
 <module name="com.github.sevntu.checkstyle.checks.coding.FinalizeImplementationCheck"/>
 <module name="com.github.sevntu.checkstyle.checks.coding.WhitespaceBeforeArrayInitializerCheck"/>