style: make java spec happy

Author: linyimin0812

src/main/java/io/github/linyimin/plugin/dom/Constant.java

@@ -11,10 +11,7 @@
  **/
 public class Constant {
     public static final String MAPPER = "mapper";
-    public static final List<String> MYBATIS_OP = Lists.newArrayList(
-            "insert",
-            "update",
-            "delete",
-            "select"
+    public static final List<String> MYBATIS_OPS = Lists.newArrayList(
+            "insert", "update", "delete", "select"
     );
 }

src/main/java/io/github/linyimin/plugin/provider/MapperXmlLineMakerProvider.java

@@ -7,7 +7,6 @@
 import com.intellij.psi.PsiClass;
 import com.intellij.psi.PsiElement;
 import com.intellij.psi.PsiMethod;
-import com.intellij.psi.PsiNameIdentifierOwner;
 import com.intellij.psi.xml.XmlTag;
 import com.intellij.util.xml.DomElement;
 import com.intellij.util.xml.DomUtil;
@@ -88,7 +87,7 @@ public List<PsiElement> processMapperInterface(PsiElement psiElement) {
     public List<PsiElement> processMapperMethod(PsiElement element) {
         XmlTag xmlTag = (XmlTag) element;
 
-        if (!Constant.MYBATIS_OP.contains(xmlTag.getName())) {
+        if (!Constant.MYBATIS_OPS.contains(xmlTag.getName())) {
             return Collections.emptyList();
         }