Issue #1627: Make 'processJavadoc' property 'true' by default

Author: Vladlis

config/checkstyle_checks.xml

@@ -196,9 +196,9 @@
       <property name="format" value="^[a-z][a-zA-Z0-9]*$"/>
     </module>
     <module name="TypeName"/>
-    <module name="UnusedImports">
-        <property name="processJavadoc" value="true"/>
-    </module>
+    <module name="UnusedImports"/>
+
+
     <module name="UpperEll"/>
     <module name="VisibilityModifier"/>
     <module name="WhitespaceAfter"/>

src/main/java/com/puppycrawl/tools/checkstyle/checks/imports/UnusedImportsCheck.java

@@ -74,7 +74,7 @@ public class UnusedImportsCheck extends Check {
     /** Flag to indicate when time to start collecting references. */
     private boolean collect;
     /** Flag whether to process Javadoc comments. */
-    private boolean processJavadoc;
+    private boolean processJavadoc = true;
 
     /** Set of the imports. */
     private final Set<FullIdent> imports = Sets.newHashSet();

src/main/resources/sun_checks.xml

@@ -103,7 +103,9 @@
         <module name="AvoidStarImport"/>
         <module name="IllegalImport"/> <!-- defaults to sun.* packages -->
         <module name="RedundantImport"/>
-        <module name="UnusedImports"/>
+        <module name="UnusedImports">
+            <property name="processJavadoc" value="false"/>
+        </module>
 
         <!-- Checks for Size Violations.                    -->
         <!-- See http://checkstyle.sf.net/config_sizes.html -->

src/test/java/com/puppycrawl/tools/checkstyle/checks/imports/UnusedImportsCheckTest.java

@@ -46,8 +46,9 @@ protected String getNonCompilablePath(String filename) throws IOException {
     }
 
     @Test
-    public void testDefault() throws Exception {
+    public void testWithoutProcessJavadoc() throws Exception {
         final DefaultConfiguration checkConfig = createCheckConfig(UnusedImportsCheck.class);
+        checkConfig.addAttribute("processJavadoc", "false");
         final String[] expected = {
             "8:45: " + getCheckMessage(MSG_KEY,
                 "com.puppycrawl.tools.checkstyle.checks.imports.InputImportBug"),
@@ -86,7 +87,6 @@ public void testDefault() throws Exception {
     @Test
     public void testProcessJavadoc() throws Exception {
         final DefaultConfiguration checkConfig = createCheckConfig(UnusedImportsCheck.class);
-        checkConfig.addAttribute("processJavadoc", "true");
         final String[] expected = {
             "8:45: " + getCheckMessage(MSG_KEY,
                 "com.puppycrawl.tools.checkstyle.checks.imports.InputImportBug"),

src/xdocs/config_imports.xml

@@ -1031,7 +1031,7 @@ public class SomeClass { ... }
           </li>
           <li>
             <b>Optionally:</b> it is referenced in Javadoc comments. This check
-            is off by default, as it is considered bad practice to introduce
+            is on by default, but it is considered bad practice to introduce
             a compile time dependency for documentation purposes only.
             As an example, the import <code>java.util.Date</code> would be
             considered referenced with the Javadoc comment
@@ -1070,7 +1070,7 @@ class FooBar {
             <td>processJavadoc</td>
             <td>whether to process Javadoc</td>
             <td><a href="property_types.html#boolean">boolean</a></td>
-            <td><code>false</code></td>
+            <td><code>true</code></td>
           </tr>
         </table>
       </subsection>
@@ -1087,7 +1087,7 @@ class FooBar {
       <subsection name="Example of Usage">
         <ul>
           <li>
-            <a href="https://github.com/checkstyle/checkstyle/blob/master/src/main/resources/sun_checks.xml#L106">
+            <a href="https://github.com/checkstyle/checkstyle/blob/master/src/main/resources/sun_checks.xml#L106-L108">
             Sun Style</a>
           </li>
           <li>