Deprecate Derby support

spring-jdbc/src/main/java/org/springframework/jdbc/core/metadata/CallMetaDataProviderFactory.java

@@ -118,6 +118,7 @@ public static CallMetaDataProvider createMetaDataProvider(DataSource dataSource,
 					}
 				}
 
+				@SuppressWarnings("removal")
 				CallMetaDataProvider provider = switch (databaseProductName) {
 					case ORACLE -> new OracleCallMetaDataProvider(databaseMetaData);
 					case POSTGRES -> new PostgresCallMetaDataProvider(databaseMetaData);

spring-jdbc/src/main/java/org/springframework/jdbc/core/metadata/DerbyCallMetaDataProvider.java

@@ -29,7 +29,9 @@
  * @author Thomas Risberg
  * @author Juergen Hoeller
  * @since 2.5
+ * @deprecated Apache Derby is retired, switch to H2 or HSQLDB
  */
+@Deprecated(forRemoval = true, since = "7.1")
 public class DerbyCallMetaDataProvider extends GenericCallMetaDataProvider {
 
 	public DerbyCallMetaDataProvider(DatabaseMetaData databaseMetaData) throws SQLException {

spring-jdbc/src/main/java/org/springframework/jdbc/core/metadata/DerbyTableMetaDataProvider.java

@@ -25,7 +25,9 @@
  *
  * @author Thomas Risberg
  * @since 3.0
+ * @deprecated Apache Derby is retired, switch to HSQLDB or H2
  */
+@Deprecated(forRemoval = true, since = "7.1")
 public class DerbyTableMetaDataProvider extends GenericTableMetaDataProvider {
 
 	private boolean supportsGeneratedKeysOverride = false;

spring-jdbc/src/main/java/org/springframework/jdbc/core/metadata/TableMetaDataProviderFactory.java

@@ -47,6 +47,7 @@ private TableMetaDataProviderFactory() {
 	 * @param context the class that holds configuration and meta-data
 	 * @return instance of the TableMetaDataProvider implementation to be used
 	 */
+	@SuppressWarnings("removal")
 	public static TableMetaDataProvider createMetaDataProvider(DataSource dataSource, TableMetaDataContext context) {
 		try {
 			return JdbcUtils.extractDatabaseMetaData(dataSource, databaseMetaData -> {

spring-jdbc/src/main/java/org/springframework/jdbc/datasource/embedded/DerbyEmbeddedDatabaseConfigurer.java

@@ -16,6 +16,7 @@
 
 package org.springframework.jdbc.datasource.embedded;
 
+import java.io.OutputStream;
 import java.sql.SQLException;
 import java.util.Properties;
 
@@ -33,7 +34,9 @@
  * @author Oliver Gierke
  * @author Juergen Hoeller
  * @since 3.0
+ * @deprecated Apache Derby is retired, switch to H2 or HSQLDB
  */
+@Deprecated(forRemoval = true, since = "7.1")
 final class DerbyEmbeddedDatabaseConfigurer implements EmbeddedDatabaseConfigurer {
 
 	private static final String URL_TEMPLATE = "jdbc:derby:memory:%s;%s";
@@ -49,7 +52,7 @@ public static synchronized DerbyEmbeddedDatabaseConfigurer getInstance() {
 		if (instance == null) {
 			// disable log file
 			System.setProperty("derby.stream.error.method",
-					OutputStreamFactory.class.getName() + ".getNoopOutputStream");
+					OutputStream.class.getName() + ".nullOutputStream");
 			instance = new DerbyEmbeddedDatabaseConfigurer();
 		}
 		return instance;

spring-jdbc/src/main/java/org/springframework/jdbc/datasource/embedded/EmbeddedDatabaseConfigurers.java

@@ -38,6 +38,7 @@ public abstract class EmbeddedDatabaseConfigurers {
 	 * @return the configurer instance
 	 * @throws IllegalStateException if the driver for the specified database type is not available
 	 */
+	@SuppressWarnings("removal")
 	public static EmbeddedDatabaseConfigurer getConfigurer(EmbeddedDatabaseType type) {
 		Assert.notNull(type, "EmbeddedDatabaseType is required");
 		try {

spring-jdbc/src/main/java/org/springframework/jdbc/datasource/embedded/EmbeddedDatabaseType.java

@@ -31,7 +31,12 @@ public enum EmbeddedDatabaseType {
 	/** The <a href="https://h2database.com">H2</a> Embedded Java SQL Database Engine. */
 	H2,
 
-	/** The <a href="https://db.apache.org/derby">Apache Derby</a> Embedded SQL Database. */
+	/**
+	 * The <a href="https://db.apache.org/derby">Apache Derby</a> Embedded SQL Database.
+	 *
+	 * @deprecated Apache Derby is retired, switch to HSQLDB or H2
+	 */
+	@Deprecated(forRemoval = true, since = "7.1")
 	DERBY
 
 }

spring-jdbc/src/main/java/org/springframework/jdbc/support/incrementer/DerbyMaxValueIncrementer.java

@@ -51,8 +51,9 @@
  *
  * @author Thomas Risberg
  * @author Juergen Hoeller
- * @since 2.5
+ * @deprecated Apache Derby is retired, switch to HSQLDB or H2
  */
+@Deprecated(forRemoval = true, since = "7.1")
 public class DerbyMaxValueIncrementer extends AbstractIdentityColumnMaxValueIncrementer {
 
 	/** The default for dummy name. */

spring-orm/src/main/java/org/springframework/orm/jpa/vendor/Database.java

@@ -37,6 +37,10 @@ public enum Database {
 
 	DB2,
 
+	/**
+	 * @deprecated Apache Derby is retired, switch to HSQLDB or H2
+	 */
+	@Deprecated(forRemoval = true, since = "7.1")
 	DERBY,
 
 	/** @since 2.5.5 */