NO-JIRA Removes redundant initializers

artemis-core-client/src/main/java/org/apache/activemq/artemis/core/client/impl/ClientSessionImpl.java

@@ -1573,7 +1573,7 @@ public final class ClientSessionImpl implements ClientSessionInternal, FailureLi
       } catch (Throwable t) {
          ActiveMQClientLogger.LOGGER.failoverDuringCommit();
 
-         XAException xaException = null;
+         XAException xaException;
          if (onePhase) {
             logger.debug("Throwing oneFase RMFAIL on xid=" + xid, t);
             //we must return XA_RMFAIL

artemis-core-client/src/main/java/org/apache/activemq/artemis/utils/DeflaterReader.java

@@ -71,7 +71,7 @@ public class DeflaterReader extends InputStream {
       //buffer for reading input stream
       byte[] readBuffer = new byte[2 * len];
 
-      int n = 0;
+      int n;
       int read = 0;
 
       while (len > 0) {

artemis-core-client/src/main/java/org/apache/activemq/artemis/utils/InflaterReader.java

@@ -78,7 +78,7 @@ public class InflaterReader extends InputStream {
     */
    private int doRead(byte[] buf, int offset, int len) throws DataFormatException, IOException {
       int read = 0;
-      int n = 0;
+      int n;
       byte[] inputBuffer = new byte[len];
 
       while (len > 0) {

artemis-core-client/src/main/java/org/apache/activemq/artemis/utils/MemorySize.java

@@ -56,11 +56,11 @@ public class MemorySize {
 
       MemorySize.newObject(factory);
 
-      int i = 0;
-      long heap1 = 0;
-      long heap2 = 0;
-      long totalMemory1 = 0;
-      long totalMemory2 = 0;
+      int i;
+      long heap1;
+      long heap2;
+      long totalMemory1;
+      long totalMemory2;
 
       // First we do a dry run with twice as many then throw away the results
 

artemis-core-client/src/main/java/org/apache/activemq/artemis/utils/SoftValueHashMap.java

@@ -308,7 +308,7 @@ public class SoftValueHashMap<K, V extends SoftValueHashMap.ValueCache> implemen
 
    @SuppressWarnings("unchecked")
    private void processQueue() {
-      AggregatedSoftReference ref = null;
+      AggregatedSoftReference ref;
       while ((ref = (AggregatedSoftReference) this.refQueue.poll()) != null) {
          logger.tracef("Removing reference through processQueue:: %s", ref.get());
          mapDelegate.remove(ref.key);

artemis-core-client/src/main/java/org/apache/activemq/artemis/utils/XMLUtil.java

@@ -116,7 +116,7 @@ public final class XMLUtil {
          }
       }
 
-      String textContent = null;
+      String textContent;
       NodeList children = n.getChildNodes();
 
       if (children.getLength() == 0) {