PDFBOX-5660: Sonar fix

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1924812 13f79535-47bb-0310-9956-ffa450edef68

Author: THausherr

examples/src/test/java/org/apache/pdfbox/examples/pdfa/CreatePDFATest.java

@@ -54,7 +54,7 @@ class CreatePDFATest
     private final String outDir = "target/test-output";
 
     @BeforeEach
-    protected void setUp()
+    void setUp()
     {
         new File(outDir).mkdirs();
     }

examples/src/test/java/org/apache/pdfbox/examples/pdfa/MergePDFATest.java

@@ -47,7 +47,7 @@ class MergePDFATest
     private final String outDir = "target/test-output";
 
     @BeforeEach
-    protected void setUp()
+    void setUp()
     {
         new File(outDir).mkdirs();
     }

pdfbox/src/test/java/org/apache/pdfbox/pdmodel/common/TestPDNameTreeNode.java

@@ -40,7 +40,7 @@ class TestPDNameTreeNode
     private PDNameTreeNode<COSInteger> node24;
 
     @BeforeEach
-    protected void setUp() throws Exception
+    void setUp() throws Exception
     {
         this.node5 = new PDIntegerNameTreeNode();
         Map<String, COSInteger> names = new TreeMap<>();

pdfbox/src/test/java/org/apache/pdfbox/pdmodel/common/TestPDNumberTreeNode.java

@@ -93,7 +93,7 @@ public boolean equals( Object obj )
     }
 
     @BeforeEach
-    protected void setUp()
+    void setUp()
     {
         this.node5 = new PDNumberTreeNode(PDTest.class);
         Map<Integer,PDTest> Numbers = new TreeMap<>();