Fix PublicMemberInNonPublicType violations

Author: rddwnn

qulice-pmd/src/main/java/com/qulice/pmd/SourceValidator.java

@@ -49,7 +49,7 @@ final class SourceValidator {
      * @return Collection of violations.
      */
     @SuppressWarnings({"PMD.AvoidInstantiatingObjectsInLoops", "PMD.CloseResource"})
-    public Collection<PmdError> validate(
+    Collection<PmdError> validate(
         final Collection<File> sources, final String path) {
         this.config.setRuleSets(new ListOf<>("com/qulice/pmd/ruleset.xml"));
         this.config.setThreads(0);

qulice-pmd/src/main/resources/com/qulice/pmd/ruleset.xml

@@ -29,7 +29,6 @@
     <exclude name="ExcessiveImports"/>
     <exclude name="CyclomaticComplexity"/>
     <exclude name="FinalFieldCouldBeStatic"/>
-    <exclude name="PublicMemberInNonPublicType"/>
   </rule>
   <rule ref="category/java/documentation.xml">
     <exclude name="CommentRequired"/>

qulice-pmd/src/test/resources/com/qulice/pmd/StaticAccessToStaticFields.java

@@ -29,7 +29,7 @@ static int another() {
             return 1;
         }
 
-        public int add(final int a) {
+        int add(final int a) {
             return a + this.num;
         }
     }

qulice-pmd/src/test/resources/com/qulice/pmd/SwaggerApi.java

@@ -7,7 +7,7 @@
 /**
  * Test class for swagger annotation.
  */
-class SwaggerApi {
+public class SwaggerApi {
     /**
      * Get settings by name.
      * @param name Name.