remove some unused var allocation in parser

source/net/yacy/document/content/DCEntry.java

@@ -311,7 +311,6 @@ public class DCEntry extends MultiMapSolrParams {
 
     public double getLat() {
         String t = this.get("geo:lat");
-        if (t == null) t = this.get("geo:lat");
         t = stripCDATA(t);
         if (t == null) return 0.0d;
         return Double.parseDouble(t);

source/net/yacy/document/parser/images/metadataImageParser.java

@@ -169,7 +169,7 @@ public class metadataImageParser extends AbstractParser implements Parser {
             singleList(title), // title
             author == null ? "" : author, // author
             location.getHost(), // Publisher
-            new String[]{}, // sections
+            null, // sections
             descriptions, // description
             gpslon, gpslat, //  location
             imgInfotxt.toString(), // content text

source/net/yacy/document/parser/rssParser.java

@@ -94,7 +94,7 @@ public class rssParser extends AbstractParser implements Parser {
                     singleList(item.getTitle()),
                     item.getAuthor(),
                     item.getCopyright(),
-                    new String[0],
+                    null,
                     item.getDescriptions(),
                     item.getLon(),
                     item.getLat(),

source/net/yacy/document/parser/sitemapParser.java

@@ -96,7 +96,7 @@ public class sitemapParser extends AbstractParser implements Parser {
                     singleList(""),
                     "",
                     "",
-                    new String[0],
+                    null,
                     new ArrayList<String>(),
                     0.0f, 0.0f,
                     null,

source/net/yacy/document/parser/swfParser.java

@@ -81,7 +81,6 @@ public class swfParser extends AbstractParser implements Parser {
             String url = null;
             String urlnr = null;
             final String linebreak = System.getProperty("line.separator");
-            final String[] sections =  null;
             final List<String> abstrct = new ArrayList<String>();
             //TreeSet images = null;
             final List<AnchorURL> anchors = new ArrayList<AnchorURL>();
@@ -100,7 +99,7 @@ public class swfParser extends AbstractParser implements Parser {
             while ((urlStart = contents.indexOf("http://",urlEnd)) >= 0){
                 urlEnd = contents.indexOf(linebreak,urlStart);
                 url = contents.substring(urlStart,urlEnd);
-                urlnr = Integer.toString(++urls).toString();
+                urlnr = Integer.toString(++urls);
                 AnchorURL u = new AnchorURL(url);
                 u.setNameProperty(urlnr);
                 anchors.add(u);
@@ -122,7 +121,7 @@ public class swfParser extends AbstractParser implements Parser {
                           replaceAll("\t"," ")), // title
                     "", // TODO: AUTHOR
                     "",
-                    sections,     // an array of section headlines
+                    null,        // an array of section headlines
                     abstrct,     // an abstract
                     0.0f, 0.0f,
                     contents,     // the parsed document text