replace

flink-connectors/flink-connector-hive/src/main/java/org/apache/flink/table/endpoint/hive/util/OperationExecutorFactory.java

@@ -508,10 +508,10 @@ private static Pattern convertNamePattern(@Nullable String pattern) {
         String wStr = ".*";
         return Pattern.compile(
                 pattern.replaceAll("([^\\\\])%", "$1" + wStr)
-                        .replaceAll("\\\\%", "%")
+                        .replace("\\\\%", "%")
                         .replaceAll("^%", wStr)
                         .replaceAll("([^\\\\])_", "$1.")
-                        .replaceAll("\\\\_", "_")
+                        .replace("\\\\_", "_")
                         .replaceAll("^_", "."));
     }
 

flink-connectors/flink-connector-hive/src/main/java/org/apache/flink/table/planner/delegation/hive/parse/HiveASTLexer.g

@@ -487,7 +487,7 @@ Identifier
 fragment    
 QuotedIdentifier 
     :
-    '`'  ( '``' | ~('`') )* '`' { setText(getText().substring(1, getText().length() -1 ).replaceAll("``", "`")); }
+    '`'  ( '``' | ~('`') )* '`' { setText(getText().substring(1, getText().length() -1 ).replace("``", "`")); }
     ;
 
 CharSetName

flink-connectors/flink-connector-hive/src/test/java/org/apache/flink/connectors/hive/HiveRunnerITCase.java

@@ -763,7 +763,7 @@ private static void verifyWrittenData(List<Row> expected, List<String> results)
         Set<String> expectedSet = new HashSet<>();
         for (int i = 0; i < results.size(); i++) {
             final String rowString = expected.get(i).toString();
-            expectedSet.add(rowString.substring(3, rowString.length() - 1).replaceAll(", ", "\t"));
+            expectedSet.add(rowString.substring(3, rowString.length() - 1).replace(", ", "\t"));
         }
         assertThat(new HashSet<>(results)).isEqualTo(expectedSet);
     }

flink-core/src/main/java/org/apache/flink/api/java/typeutils/TypeExtractor.java

@@ -2013,7 +2013,7 @@ private boolean isValidPojoField(Field f, Class<?> clazz, List<Type> typeHierarc
             return true;
         } else {
             boolean hasGetter = false, hasSetter = false;
-            final String fieldNameLow = f.getName().toLowerCase().replaceAll("_", "");
+            final String fieldNameLow = f.getName().toLowerCase().replace("_", "");
 
             Type fieldType = f.getGenericType();
             Class<?> fieldTypeWrapper = ClassUtils.primitiveToWrapper(f.getType());
@@ -2028,9 +2028,9 @@ private boolean isValidPojoField(Field f, Class<?> clazz, List<Type> typeHierarc
                         m.getName().endsWith("_$eq")
                                 ? m.getName()
                                         .toLowerCase()
-                                        .replaceAll("_", "")
+                                        .replace("_", "")
                                         .replaceFirst("\\$eq$", "_\\$eq")
-                                : m.getName().toLowerCase().replaceAll("_", "");
+                                : m.getName().toLowerCase().replace("_", "");
 
                 // check for getter
                 if ( // The name should be "get<FieldName>" or "<fieldName>" (for scala) or

flink-core/src/main/java/org/apache/flink/configuration/StructuredOptionsSplitter.java

@@ -81,7 +81,7 @@ static String escapeWithSingleQuote(String string, String... charsToEscape) {
                         || string.contains("'");
 
         if (escape) {
-            return "'" + string.replaceAll("'", "''") + "'";
+            return "'" + string.replace("'", "''") + "'";
         }
 
         return string;

flink-core/src/main/java/org/apache/flink/configuration/description/Formatter.java

@@ -105,8 +105,8 @@ protected abstract void formatText(
     private static final String TEMPORARY_PLACEHOLDER = "randomPlaceholderForStringFormat";
 
     private static String escapeFormatPlaceholder(String value) {
-        return value.replaceAll("%s", TEMPORARY_PLACEHOLDER)
-                .replaceAll("%", "%%")
-                .replaceAll(TEMPORARY_PLACEHOLDER, "%s");
+        return value.replace("%s", TEMPORARY_PLACEHOLDER)
+                .replace("%", "%%")
+                .replace(TEMPORARY_PLACEHOLDER, "%s");
     }
 }

flink-docs/src/main/java/org/apache/flink/docs/util/ConfigurationOptionLocator.java

@@ -150,7 +150,7 @@ public static List<Class<?>> discoverOptionsAndApply(
             throws IOException, ClassNotFoundException {
 
         Path configDir =
-                rootDir.resolve(Paths.get(module, pathPrefix, packageName.replaceAll("\\.", "/")));
+                rootDir.resolve(Paths.get(module, pathPrefix, packageName.replace(".", "/")));
 
         List<Class<?>> optionClasses = new ArrayList<>();
         try (DirectoryStream<Path> stream = Files.newDirectoryStream(configDir)) {

flink-docs/src/main/java/org/apache/flink/docs/util/Utils.java

@@ -29,9 +29,9 @@ public enum Utils {
     private static final String TEMPORARY_PLACEHOLDER = "superRandomTemporaryPlaceholder";
 
     public static String escapeCharacters(String value) {
-        return value.replaceAll("<wbr>", TEMPORARY_PLACEHOLDER)
-                .replaceAll("<", "&lt;")
-                .replaceAll(">", "&gt;")
-                .replaceAll(TEMPORARY_PLACEHOLDER, "<wbr>");
+        return value.replace("<wbr>", TEMPORARY_PLACEHOLDER)
+                .replace("<", "&lt;")
+                .replace(">", "&gt;")
+                .replace(TEMPORARY_PLACEHOLDER, "<wbr>");
     }
 }

flink-end-to-end-tests/flink-tpch-test/src/main/java/org/apache/flink/table/tpch/TpchResultComparator.java

@@ -96,7 +96,7 @@ public static void main(String[] args) throws IOException {
                             failed =
                                     !expected[i]
                                             .trim()
-                                            .equals(actual[i].replaceAll("\"", "").trim());
+                                            .equals(actual[i].replace("\"", "").trim());
                         }
                     }
                     if (failed) {

flink-runtime/src/main/java/org/apache/flink/runtime/checkpoint/RescaleMappings.java

@@ -37,7 +37,7 @@
  * #invert()}, the direction may change accordingly. To generalize, the left side is called source
  * and the right side is called target(s) in this class.
  *
- * <p>{@ImplNote This class omits trailing empty targets.}
+ * <p>{@implNote This class omits trailing empty targets.}
  */
 public class RescaleMappings implements Serializable {
     public static final RescaleMappings SYMMETRIC_IDENTITY =

flink-runtime/src/main/java/org/apache/flink/runtime/metrics/filter/DefaultMetricFilter.java

@@ -94,8 +94,8 @@ static Pattern convertToPattern(String scopeOrNameComponent) {
 
         final String rawPattern =
                 Arrays.stream(split)
-                        .map(s -> s.replaceAll("\\.", "\\."))
-                        .map(s -> s.replaceAll("\\*", ".*"))
+                        .map(s -> s.replace(".", "\\."))
+                        .map(s -> s.replace("*", ".*"))
                         .collect(Collectors.joining("|", "(", ")"));
 
         return Pattern.compile(rawPattern);

flink-runtime/src/main/java/org/apache/flink/runtime/rest/handler/job/GeneratedLogUrlHandler.java

@@ -79,9 +79,9 @@ protected void channelRead0(ChannelHandlerContext ctx, RoutedRequest<Object> rou
 
     @VisibleForTesting
     static String generateLogUrl(String pattern, String jobId, String taskManagerId) {
-        String generatedUrl = pattern.replaceAll("<jobid>", jobId);
+        String generatedUrl = pattern.replace("<jobid>", jobId);
         if (null != taskManagerId) {
-            generatedUrl = generatedUrl.replaceAll("<tmid>", taskManagerId);
+            generatedUrl = generatedUrl.replace("<tmid>", taskManagerId);
         }
         return generatedUrl;
     }

flink-runtime/src/main/java/org/apache/flink/runtime/util/Hardware.java

@@ -258,7 +258,7 @@ private static long getSizeOfPhysicalMemoryForWindows() {
                     continue;
                 }
 
-                line = line.replaceAll(" ", "");
+                line = line.replace(" ", "");
                 sizeOfPhyiscalMemory += Long.parseLong(line);
             }
             return sizeOfPhyiscalMemory;

flink-state-backends/flink-statebackend-rocksdb/src/main/java/org/apache/flink/contrib/streaming/state/snapshot/RocksDBSnapshotStrategyBase.java

@@ -135,7 +135,7 @@ public RocksDBSnapshotStrategyBase(
         this.localRecoveryConfig = localRecoveryConfig;
         this.description = description;
         this.instanceBasePath = instanceBasePath;
-        this.localDirectoryName = backendUID.toString().replaceAll("[\\-]", "");
+        this.localDirectoryName = backendUID.toString().replace("-", "");
         this.backendUID = backendUID;
     }
 

flink-table/flink-sql-client/src/main/java/org/apache/flink/table/client/cli/parser/SqlClientSyntaxHighlighter.java

@@ -44,7 +44,7 @@ public class SqlClientSyntaxHighlighter extends DefaultHighlighter {
     private static final Set<String> KEYWORDS =
             Collections.unmodifiableSet(
                     Arrays.stream(FlinkSqlParserImplConstants.tokenImage)
-                            .map(t -> t.replaceAll("\"", ""))
+                            .map(t -> t.replace("\"", ""))
                             .collect(Collectors.toSet()));
 
     private final Executor executor;

flink-table/flink-table-api-java/src/main/java/org/apache/flink/table/operations/JoinQueryOperation.java

@@ -112,7 +112,7 @@ public String asSerializableString() {
                 "SELECT %s FROM (%s\n) %s JOIN %s ON %s",
                 OperationUtils.formatSelectColumns(resolvedSchema),
                 OperationUtils.indent(left.asSerializableString()),
-                joinType.toString().replaceAll("_", " "),
+                joinType.toString().replace("_", " "),
                 rightToSerializable(),
                 condition.asSerializableString());
     }

flink-table/flink-table-api-java/src/main/java/org/apache/flink/table/operations/OperationUtils.java

@@ -63,7 +63,7 @@ static String indent(String item) {
             if (group.startsWith("'")) {
                 matcher.appendReplacement(output, Matcher.quoteReplacement(group));
             } else {
-                String replaced = group.replaceAll("\n", "\n" + OPERATION_INDENT);
+                String replaced = group.replace("\n", "\n" + OPERATION_INDENT);
                 matcher.appendReplacement(output, Matcher.quoteReplacement(replaced));
             }
         }

flink-table/flink-table-common/src/main/java/org/apache/flink/table/functions/JsonFunctionsCallSyntax.java

@@ -110,8 +110,8 @@ class JsonFunctionsCallSyntax {
                         operands.get(0).asSerializableString(),
                         operands.get(1).asSerializableString(),
                         toString(wrapper),
-                        onEmpty.toString().replaceAll("_", " "),
-                        onError.toString().replaceAll("_", " "));
+                        onEmpty.toString().replace("_", " "),
+                        onError.toString().replace("_", " "));
             };
 
     static final SqlCallSyntax JSON_OBJECT =

flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/planner/codegen/Indenter.scala

@@ -25,7 +25,7 @@ class IndentStringContext(sc: StringContext) {
 
       val ind = getindent(s)
       if (ind.nonEmpty) {
-        sb.append(a.toString.replaceAll("\n", "\n" + ind))
+        sb.append(a.toString.replace("\n", "\n" + ind))
       } else {
         sb.append(a.toString)
       }

flink-table/flink-table-planner/src/test/scala/org/apache/flink/table/planner/utils/LogicalPlanFormatUtils.scala

@@ -21,7 +21,7 @@ object LogicalPlanFormatUtils {
   private val tempPattern = """TMP_\d+""".r
 
   def formatTempTableId(preStr: String): String = {
-    val str = preStr.replaceAll("ArrayBuffer\\(", "List\\(")
+    val str = preStr.replace("ArrayBuffer(", "List(")
     val minId = getMinTempTableId(str)
     tempPattern.replaceAllIn(str, s => "TMP_" + (s.matched.substring(4).toInt - minId))
   }

flink-table/flink-table-planner/src/test/scala/org/apache/flink/table/planner/utils/TableTestBase.scala

@@ -849,7 +849,7 @@ abstract class TableTestUtilBase(test: TableTestBase, isStreamingMode: Boolean)
     // add the postfix to the path to avoid conflicts
     // between the test class name and the result file name
     val clazz = test.getClass
-    val testClassDirPath = clazz.getName.replaceAll("\\.", "/") + "_jsonplan"
+    val testClassDirPath = clazz.getName.replace(".", "/") + "_jsonplan"
     val testMethodFileName = test.methodName + ".out"
     val resourceTestFilePath = s"/$testClassDirPath/$testMethodFileName"
     val plannerDirPath = clazz.getResource("/").getFile.replace("/target/test-classes/", "")
@@ -1165,7 +1165,7 @@ abstract class TableTestUtilBase(test: TableTestBase, isStreamingMode: Boolean)
 
   /** Replace the estimated costs for the given plan, because it may be unstable. */
   protected def replaceEstimatedCost(s: String): String = {
-    var str = s.replaceAll("\\r\\n", "\n")
+    var str = s.replace("\r\n", "\n")
     val scientificFormRegExpr = "[+-]?[\\d]+([\\.][\\d]*)?([Ee][+-]?[0-9]{0,2})?"
     str = str.replaceAll(s"rowcount = $scientificFormRegExpr", "rowcount = ")
     str = str.replaceAll(s"$scientificFormRegExpr rows", "rows")
@@ -1813,7 +1813,7 @@ object TableTestUtil {
    * StreamExecutionEnvironment is up
    */
   def replaceStageId(s: String): String = {
-    s.replaceAll("\\r\\n", "\n").replaceAll("Stage \\d+", "")
+    s.replace("\r\n", "\n").replaceAll("Stage \\d+", "")
   }
 
   /**

tools/ci/flink-ci-tools/src/main/java/org/apache/flink/tools/ci/licensecheck/JarFileChecker.java

@@ -188,7 +188,7 @@ private static Collection<Pattern> asPatterns(String... texts) {
 
     private static Pattern asPatternWithPotentialLineBreaks(String text) {
         // allows word sequences to be separated by whitespace, line-breaks and comments(//, #)
-        return Pattern.compile(text.toLowerCase(Locale.ROOT).replaceAll(" ", " ?\\\\R?[\\\\s/#]*"));
+        return Pattern.compile(text.toLowerCase(Locale.ROOT).replace(" ", " ?\\\\R?[\\\\s/#]*"));
     }
 
     private static int findNonBinaryFilesContainingText(