Remove deprecated utility methods

testng-collections/src/main/java/org/testng/util/Strings.java

@@ -10,17 +10,6 @@ private Strings() {
     // Utility class. Defeat instantiation.
   }
 
-  // TODO: When TestNG moves to JDK11 as the default JDK this method needs to be deprecated and
-  // removed
-  // because now this method is present in JDK11 as part of the JDK itself.
-  // See
-  // https://hg.openjdk.java.net/jdk/jdk/file/fc16b5f193c7/src/java.base/share/classes/java/lang/String.java#l2984
-  /** @deprecated - This method stands deprecated as of TestNG <code>7.6.0</code> */
-  @Deprecated
-  public static String repeat(String text, int count) {
-    return text.repeat(count);
-  }
-
   public static boolean isNullOrEmpty(String string) {
     return Optional.ofNullable(string).orElse("").trim().isEmpty();
   }
@@ -29,17 +18,6 @@ public static boolean isNotNullAndNotEmpty(String string) {
     return !isNullOrEmpty(string);
   }
 
-  /**
-   * @param string - The input String.
-   * @return - Returns an empty string if the input String is <code>null</code> (or) empty, else it
-   *     returns back the input string.
-   * @deprecated - This method stands deprecated as of TestNG <code>7.6.0</code>
-   */
-  @Deprecated
-  public static String getValueOrEmpty(String string) {
-    return Optional.ofNullable(string).orElse("");
-  }
-
   private static final Map<String, String> ESCAPE_HTML_MAP = Maps.newLinkedHashMap();
 
   static {
@@ -60,8 +38,8 @@ public static String valueOf(Map<?, ?> m) {
     return m.values().stream().map(Object::toString).collect(Collectors.joining(" "));
   }
 
-  /** @deprecated - This is deprecated of TestNG <code>7.6.0</code> */
-  @Deprecated
+  // Don't remove this method. This is being called as part of the Gradle build. Removing this
+  // causes build to fail due to NoSuchMethodError
   public static String join(String delimiter, String[] parts) {
     return String.join(delimiter, parts);
   }

testng-core/src/main/java/org/testng/reporters/Files.java

@@ -1,18 +1,9 @@
 package org.testng.reporters;
 
 import java.io.BufferedReader;
-import java.io.BufferedWriter;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.FileWriter;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
-import java.io.OutputStream;
-import java.io.Reader;
-import java.io.StringWriter;
-import java.io.Writer;
 import java.nio.charset.StandardCharsets;
 import java.util.stream.Collectors;
 
@@ -22,63 +13,9 @@ private Files() {
     // defeat instantiation
   }
 
-  /** @deprecated - This method stands deprecated as of TestNG <code>7.6.0</code> */
-  @Deprecated
-  public static String readFile(File f) throws IOException {
-    try (InputStream is = new FileInputStream(f)) {
-      return readFile(is);
-    }
-  }
-
   public static String readFile(InputStream is) throws IOException {
     return new BufferedReader(new InputStreamReader(is, StandardCharsets.UTF_8))
         .lines()
         .collect(Collectors.joining("\n"));
   }
-
-  /** @deprecated - This method stands deprecated as of TestNG <code>7.6.0</code> */
-  @Deprecated
-  public static void writeFile(String string, File f) throws IOException {
-    f.getParentFile().mkdirs();
-    try (FileWriter fw = new FileWriter(f);
-        BufferedWriter bw = new BufferedWriter(fw)) {
-      bw.write(string);
-    }
-  }
-
-  /** @deprecated - This method stands deprecated as of TestNG <code>7.6.0</code> */
-  @Deprecated
-  public static void copyFile(InputStream from, File to) throws IOException {
-    if (!to.getParentFile().exists()) {
-      to.getParentFile().mkdirs();
-    }
-
-    try (OutputStream os = new FileOutputStream(to)) {
-      byte[] buffer = new byte[65536];
-      int count = from.read(buffer);
-      while (count > 0) {
-        os.write(buffer, 0, count);
-        count = from.read(buffer);
-      }
-    }
-  }
-
-  /** @deprecated - This method stands deprecated as of TestNG <code>7.6.0</code> */
-  @Deprecated
-  public static String streamToString(InputStream is) throws IOException {
-    if (is != null) {
-      Writer writer = new StringWriter();
-
-      char[] buffer = new char[1024];
-      try (Reader reader = new BufferedReader(new InputStreamReader(is, StandardCharsets.UTF_8))) {
-        int n;
-        while ((n = reader.read(buffer)) != -1) {
-          writer.write(buffer, 0, n);
-        }
-      }
-      return writer.toString();
-    } else {
-      return "";
-    }
-  }
 }