Fix quality flaw: private methods which could be static

Author: Wohops

java-checks/src/main/java/org/sonar/java/checks/LeftCurlyBraceBaseTreeVisitor.java

@@ -20,6 +20,7 @@
 package org.sonar.java.checks;
 
 import com.google.common.collect.Iterables;
+
 import org.sonar.plugins.java.api.JavaCheck;
 import org.sonar.plugins.java.api.JavaFileScanner;
 import org.sonar.plugins.java.api.JavaFileScannerContext;
@@ -78,7 +79,7 @@ public void visitClass(ClassTree tree) {
   }
 
   @CheckForNull
-  private SyntaxToken getLastTokenFromSignature(ClassTree classTree) {
+  private static SyntaxToken getLastTokenFromSignature(ClassTree classTree) {
     List<TypeTree> superInterfaces = classTree.superInterfaces();
     if (!superInterfaces.isEmpty()) {
       return getIdentifierToken(Iterables.getLast(superInterfaces));
@@ -199,7 +200,7 @@ public void visitMethod(MethodTree tree) {
     super.visitMethod(tree);
   }
 
-  private SyntaxToken getLastTokenFromSignature(MethodTree methodTree) {
+  private static SyntaxToken getLastTokenFromSignature(MethodTree methodTree) {
     if (methodTree.throwsClauses().isEmpty()) {
       return methodTree.closeParenToken();
     } else {

java-checks/src/main/java/org/sonar/java/checks/naming/FieldNameMatchingTypeNameCheck.java

@@ -20,6 +20,7 @@
 package org.sonar.java.checks.naming;
 
 import com.google.common.collect.Lists;
+
 import org.sonar.api.server.rule.RulesDefinition;
 import org.sonar.check.Priority;
 import org.sonar.check.Rule;
@@ -84,7 +85,7 @@ public void visitClass(ClassTree tree) {
     fields.clear();
   }
 
-  private boolean staticFieldSameType(Symbol classSymbol, Symbol sym) {
+  private static boolean staticFieldSameType(Symbol classSymbol, Symbol sym) {
     return sym.type().equals(classSymbol.type()) && sym.isStatic();
   }