Remove redundant member initializer.

jspwiki-210-test-adaptees/src/test/java/com/example/filters/TwoXFilter.java

@@ -29,7 +29,7 @@ Licensed to the Apache Software Foundation (ASF) under one
 public class TwoXFilter extends BasicPageFilter {
 
     String newContent = "";
-    int invocations = 0;
+    int invocations;
 
     /** {@inheritDoc} */
     @Override

jspwiki-event/src/test/java/org/apache/wiki/event/TestWikiEventListener.java

@@ -20,7 +20,7 @@ Licensed to the Apache Software Foundation (ASF) under one
 
 public class TestWikiEventListener implements WikiEventListener {
 
-    int invoked = 0;
+    int invoked;
 
     /** {@inheritDoc} */
     @Override

jspwiki-main/src/main/java/org/apache/wiki/auth/SecurityVerifier.java

@@ -585,7 +585,7 @@ void verifyJaas() {
      */
     File getFileFromProperty( final String property )
     {
-        String propertyValue = null;
+        String propertyValue;
         try
         {
             propertyValue = System.getProperty( property );

jspwiki-main/src/main/java/org/apache/wiki/parser/CreoleToJSPWikiTranslator.java

@@ -185,7 +185,7 @@ public String translateSignature(final Properties wikiProps, final String conten
             dateFormat = DEFAULT_DATEFORMAT;
         }
 
-        SimpleDateFormat df = null;
+        SimpleDateFormat df;
         try
         {
             df = new SimpleDateFormat(dateFormat);

jspwiki-main/src/main/java/org/apache/wiki/parser/JSPWikiMarkupParser.java

@@ -1458,7 +1458,7 @@ private Element handleDash()
     private Element handleHeading()
         throws IOException
     {
-        Element el = null;
+        Element el;
 
         final int ch  = nextToken();
 
@@ -2028,7 +2028,7 @@ private Element handleSlash( final boolean newLine )
     private Element handleBar( final boolean newLine )
         throws IOException
     {
-        Element el = null;
+        Element el;
 
         if( !m_istable && !newLine )
         {

jspwiki-main/src/main/java/org/apache/wiki/plugin/AbstractReferralPlugin.java

@@ -129,7 +129,7 @@ public abstract class AbstractReferralPlugin implements Plugin {
     protected String m_before = ""; // null not blank
     protected String m_separator = ""; // null not blank
     protected String m_after = "\\\\";
-    protected int items = 0;
+    protected int items;
 
     protected Pattern[]  m_exclude;
     protected Pattern[]  m_include;

jspwiki-main/src/main/java/org/apache/wiki/plugin/ReferredPagesPlugin.java

@@ -66,7 +66,7 @@ public class ReferredPagesPlugin implements Plugin {
     private final PatternMatcher m_matcher = new Perl5Matcher();
     private Pattern m_includePattern;
     private Pattern m_excludePattern;
-    private int items = 0;
+    private int items;
     private boolean m_formatCompact = true;
     private boolean m_formatSort;
 

jspwiki-main/src/main/java/org/apache/wiki/tags/BreadcrumbsTag.java

@@ -154,7 +154,7 @@ public int doWikiStartTag() throws IOException {
         final JspWriter out     = pageContext.getOut();
         final int queueSize     = trail.size();
         final String linkclass  = "wikipage";
-        String curPage    = null;
+        String curPage;
 
         for( int i = 0; i < queueSize - 1; i++ ) {
             curPage = trail.get(i);

jspwiki-main/src/main/java/org/apache/wiki/tags/ParamTag.java

@@ -74,7 +74,7 @@ public void setValue(final String s )
     @Override
     public int doEndTag()
     {
-        Tag t = null;
+        Tag t;
         do
         {
             t = getParent();

jspwiki-main/src/test/java/org/apache/wiki/HsqlDbUtils.java

@@ -57,8 +57,8 @@ public class HsqlDbUtils
 
     private static final Logger LOG = LogManager.getLogger( HsqlDbUtils.class );
 
-    Server hsqlServer = null;
-    int localPort = 0;
+    Server hsqlServer;
+    int localPort;
 
     /**
      * Convenience Hypersonic startup method for unit tests.

jspwiki-main/src/test/java/org/apache/wiki/TestEngine.java

@@ -69,12 +69,12 @@ Licensed to the Apache Software Foundation (ASF) under one
 public class TestEngine extends WikiEngine {
     private static final Logger log = LogManager.getLogger( TestEngine.class );
 
-    private Session m_adminWikiSession = null;
-    private Session m_janneWikiSession = null;
-    private Session m_guestWikiSession = null;
+    private Session m_adminWikiSession;
+    private Session m_janneWikiSession;
+    private Session m_guestWikiSession;
 
     // combined properties file (jspwiki.properties + custom override, if any)
-    private static Properties combinedProperties = null;
+    private static Properties combinedProperties;
 
     /**
      * Creates WikiSession with the privileges of the administrative user. For testing purposes, obviously.

jspwiki-main/src/test/java/org/apache/wiki/TestJDBCDataSource.java

@@ -53,15 +53,15 @@ public class TestJDBCDataSource implements DataSource
 
     protected static final String PROPERTY_USER_PASSWORD = "jdbc.user.password";
 
-    protected String              m_jdbcPassword         = null;
+    protected String              m_jdbcPassword;
 
-    protected String              m_jdbcURL              = null;
+    protected String              m_jdbcURL;
 
-    protected String              m_jdbcUser             = null;
+    protected String              m_jdbcUser;
 
-    protected int                 m_timeout              = 0;
+    protected int                 m_timeout;
 
-    protected PrintWriter         m_writer               = null;
+    protected PrintWriter         m_writer;
 
    /**
      * Constructs a new instance of this class, using a supplied properties

jspwiki-main/src/test/java/org/apache/wiki/TestJNDIContext.java

@@ -58,7 +58,7 @@ public class TestJNDIContext implements Context
 
     private final Map<String, Object> m_bindings  = new HashMap<>();
 
-    private static boolean initialized = false;
+    private static boolean initialized;
 
     /**
      * InitialContextFactory class that configures the JVM to
@@ -67,7 +67,7 @@ public class TestJNDIContext implements Context
     public static class Factory implements InitialContextFactory
     {
 
-        private static Context ctx = null;
+        private static Context ctx;
 
         @Override
         public Context getInitialContext(final Hashtable<?,?> environment ) throws NamingException

jspwiki-main/src/test/java/org/apache/wiki/auth/SecurityEventTrap.java

@@ -31,7 +31,7 @@ Licensed to the Apache Software Foundation (ASF) under one
  */
 public class SecurityEventTrap implements WikiEventListener
 {
-    private WikiSecurityEvent m_lastEvent = null;
+    private WikiSecurityEvent m_lastEvent;
     private final List<WikiSecurityEvent> m_events    = new ArrayList<WikiSecurityEvent>();
 
     public void actionPerformed(final WikiEvent event )

jspwiki-main/src/test/java/org/apache/wiki/auth/authorize/JDBCGroupDatabaseTest.java

@@ -43,9 +43,9 @@ public class JDBCGroupDatabaseTest
 {
     private final HsqlDbUtils       m_hu   = new HsqlDbUtils();
 
-    private Connection        m_conn = null;
+    private Connection        m_conn;
 
-    private JDBCGroupDatabase m_db   = null;
+    private JDBCGroupDatabase m_db;
 
     private String            m_wiki;
 

jspwiki-main/src/test/java/org/apache/wiki/auth/user/JDBCUserDatabaseTest.java

@@ -49,7 +49,7 @@ Licensed to the Apache Software Foundation (ASF) under one
 public class JDBCUserDatabaseTest {
     private final HsqlDbUtils m_hu = new HsqlDbUtils();
 
-    private JDBCUserDatabase m_db = null;
+    private JDBCUserDatabase m_db;
 
     private static final String TEST_ATTRIBUTES = "rO0ABXNyABFqYXZhLnV0aWwuSGFzaE1hcAUH2sHDFmDRAwACRgAKbG9hZEZhY3RvckkACXRocmVzaG9sZHhwP0AAAAAAAAx3CAAAABAAAAACdAAKYXR0cmlidXRlMXQAEXNvbWUgcmFuZG9tIHZhbHVldAAKYXR0cmlidXRlMnQADWFub3RoZXIgdmFsdWV4";
 

jspwiki-main/src/test/java/org/apache/wiki/plugin/JavaScriptPlugin.java

@@ -34,7 +34,7 @@ Licensed to the Apache Software Foundation (ASF) under one
  */
 public class JavaScriptPlugin implements Plugin, InitializablePlugin {
 
-    protected static boolean c_inited = false;
+    protected static boolean c_inited;
 
     @Override
     public String execute( final Context context, final Map< String, String > params ) throws PluginException {

jspwiki-main/src/test/java/org/apache/wiki/plugin/SamplePlugin.java

@@ -33,7 +33,7 @@ Licensed to the Apache Software Foundation (ASF) under one
  */
 public class SamplePlugin implements Plugin, ParserStagePlugin {
 
-    protected static boolean c_rendered = false;
+    protected static boolean c_rendered;
 
     @Override
     public String execute( final Context context, final Map< String, String > params ) {

jspwiki-main/src/test/java/org/apache/wiki/providers/CounterProvider.java

@@ -39,11 +39,11 @@ Licensed to the Apache Software Foundation (ASF) under one
  */
 public class CounterProvider implements PageProvider {
 
-    public int m_getPageCalls     = 0;
-    public int m_pageExistsCalls  = 0;
-    public int m_getPageTextCalls = 0;
-    public int m_getAllPagesCalls = 0;
-    public int m_initCalls        = 0;
+    public int m_getPageCalls;
+    public int m_pageExistsCalls;
+    public int m_getPageTextCalls;
+    public int m_getAllPagesCalls;
+    public int m_initCalls;
 
     Page[]    m_pages         = new Page[0];
 

jspwiki-main/src/test/java/org/apache/wiki/providers/VerySimpleProvider.java

@@ -39,7 +39,7 @@ Licensed to the Apache Software Foundation (ASF) under one
 public class VerySimpleProvider implements PageProvider {
 
     /** The last request is stored here. */
-    public String m_latestReq = null;
+    public String m_latestReq;
     /** The version number of the last request is stored here. */
     public int    m_latestVers = -123989;
 

jspwiki-main/src/test/java/org/apache/wiki/web/TestContainer.java

@@ -72,8 +72,8 @@ public class TestContainer {
     private static final Logger log = LogManager.getLogger( TestContainer.class );
 
     private static Context initCtx ;
-    private static Resource userDB = null;        
-    private static Resource groupDB = null;        
+    private static Resource userDB;
+    private static Resource groupDB;
 
     private static final ContextHandlerCollection handlerCollection = new ContextHandlerCollection();
 

jspwiki-util/src/main/java/org/apache/wiki/util/FormUtil.java

@@ -97,7 +97,7 @@ private FormUtil()
             keyPrefix.isEmpty() )
             return rval;
 
-        String fullPrefix = null;
+        String fullPrefix;
         if( keyPrefix.charAt( keyPrefix.length() - 1 ) == '.' )
             fullPrefix = keyPrefix;
         else

jspwiki-util/src/main/java/org/apache/wiki/util/TimedCounterList.java

@@ -90,7 +90,7 @@ public T get(final int index )
     public int size()
     {
         m_lock.readLock().lock();
-        int size = 0;
+        int size;
 
         try
         {
@@ -213,7 +213,7 @@ public void cleanup(final long maxage )
     public long getAddTime(final int index )
     {
         m_lock.readLock().lock();
-        long res = 0;
+        long res;
 
         try
         {