warnings cleanup

Author: cowtowncoder

csv/src/main/java/com/fasterxml/jackson/dataformat/csv/CsvGenerator.java

@@ -329,17 +329,19 @@ public JsonGenerator overrideFormatFeatures(int values, int mask)
         return this;
     }
 
+    @Override
     public JsonGenerator setCharacterEscapes(CharacterEscapes esc) {
         this._characterEscapes = esc;
         if (esc != null) {
-            this._writer.setOutputEscapes(esc.getEscapeCodesForAscii());
+            _writer.setOutputEscapes(esc.getEscapeCodesForAscii());
         } else {
-            this._writer.setOutputEscapes(CsvCharacterEscapes.fromCsvFeatures(_formatFeatures).getEscapeCodesForAscii());
+            _writer.setOutputEscapes(CsvCharacterEscapes.fromCsvFeatures(_formatFeatures).getEscapeCodesForAscii());
         }
 
         return this;
     }
 
+    @Override
     public CharacterEscapes getCharacterEscapes() {
         return this._characterEscapes;
     }

properties/src/test/java/com/fasterxml/jackson/dataformat/javaprop/PrefixTest.java

@@ -1,10 +1,7 @@
 package com.fasterxml.jackson.dataformat.javaprop;
 
-import java.util.Map;
 import java.util.Properties;
 
-import com.fasterxml.jackson.databind.ObjectMapper;
-
 public class PrefixTest extends ModuleTestBase
 {
     private final JavaPropsMapper MAPPER = mapperForProps();