Use JUnit 5 convention for class visibility

Author: garydgregory

src/test/java/org/apache/commons/io/ByteOrderMarkTest.java

@@ -31,7 +31,7 @@
 /**
  * Test for {@link ByteOrderMark}.
  */
-public class ByteOrderMarkTest {
+class ByteOrderMarkTest {
 
     private static final ByteOrderMark TEST_BOM_1 = new ByteOrderMark("test1", 1);
     private static final ByteOrderMark TEST_BOM_2 = new ByteOrderMark("test2", 1, 2);

src/test/java/org/apache/commons/io/ByteOrderParserTest.java

@@ -26,7 +26,7 @@
 /**
  * Test for {@link ByteOrderParser}.
  */
-public class ByteOrderParserTest {
+class ByteOrderParserTest {
 
     private ByteOrder parseByteOrder(final String value) {
         return ByteOrderParser.parseByteOrder(value);

src/test/java/org/apache/commons/io/CopyUtilsTest.java

@@ -41,7 +41,7 @@
  *
  * @see CopyUtils
  */
-public class CopyUtilsTest {
+class CopyUtilsTest {
 
     /*
      * NOTE this is not particularly beautiful code. A better way to check for

src/test/java/org/apache/commons/io/DeleteDirectoryTest.java

@@ -44,7 +44,7 @@
  * </p>
  */
 @DisabledOnOs(OS.WINDOWS)
-public class DeleteDirectoryTest extends AbstractTempDirTest {
+class DeleteDirectoryTest extends AbstractTempDirTest {
 
     private void testDeleteDirectory(final IOConsumer<Path> deleter) throws IOException {
         // Create a test file

src/test/java/org/apache/commons/io/DemuxInputStreamTest.java

@@ -35,7 +35,7 @@
 /**
  * Tests {@link DemuxInputStream}.
  */
-public class DemuxInputStreamTest {
+class DemuxInputStreamTest {
 
     private static final class ReaderThread extends Thread {
         private final DemuxInputStream demuxInputStream;

src/test/java/org/apache/commons/io/DirectoryWalkerTest.java

@@ -37,7 +37,7 @@
 /**
  * Tests {@link DirectoryWalker}.
  */
-public class DirectoryWalkerTest {
+class DirectoryWalkerTest {
 
     /**
      * Test DirectoryWalker implementation that finds files in a directory hierarchy

src/test/java/org/apache/commons/io/EndianUtilsTest.java

@@ -29,7 +29,7 @@
 /**
  * Tests {@link EndianUtils}.
  */
-public class EndianUtilsTest {
+class EndianUtilsTest {
 
     @Test
     void testCtor() {

src/test/java/org/apache/commons/io/FileCleanerTest.java

@@ -20,7 +20,7 @@
  * Tests {@link FileCleaner}.
  */
 @SuppressWarnings("deprecation") // testing deprecated class
-public class FileCleanerTest extends FileCleaningTrackerTest {
+class FileCleanerTest extends FileCleaningTrackerTest {
 
     @Override
     protected FileCleaningTracker newInstance() {

src/test/java/org/apache/commons/io/FileCleaningTrackerTest.java

@@ -43,7 +43,7 @@
 /**
  * Tests {@link FileCleaningTracker}.
  */
-public class FileCleaningTrackerTest extends AbstractTempDirTest {
+class FileCleaningTrackerTest extends AbstractTempDirTest {
 
     private File testFile;
     private Path testPath;

src/test/java/org/apache/commons/io/FileDeleteStrategyTest.java

@@ -32,7 +32,7 @@
 /**
  * Tests {@link FileDeleteStrategy}.
  */
-public class FileDeleteStrategyTest {
+class FileDeleteStrategyTest {
 
     @TempDir
     public File temporaryFolder;