diff --git a/test/e2e/operation/transaction/src/test/java/org/apache/shardingsphere/test/e2e/transaction/cases/autocommit/AutoCommitTestCase.java b/test/e2e/operation/transaction/src/test/java/org/apache/shardingsphere/test/e2e/transaction/cases/autocommit/AutoCommitTestCase.java
deleted file mode 100644
index bebad98454689..0000000000000
--- a/test/e2e/operation/transaction/src/test/java/org/apache/shardingsphere/test/e2e/transaction/cases/autocommit/AutoCommitTestCase.java
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.test.e2e.transaction.cases.autocommit;
-
-import org.apache.shardingsphere.test.e2e.transaction.cases.base.BaseTransactionTestCase;
-
-import java.sql.Connection;
-import java.sql.PreparedStatement;
-import java.sql.SQLException;
-
-import static org.junit.jupiter.api.Assertions.assertFalse;
-import static org.junit.jupiter.api.Assertions.assertTrue;
-
-/**
- * Auto commit transaction integration test.
- */
-public abstract class AutoCommitTestCase extends BaseTransactionTestCase {
-
- protected AutoCommitTestCase(final TransactionTestCaseParameter testCaseParam) {
- super(testCaseParam);
- }
-
- protected void assertAutoCommitWithStatement() throws SQLException {
- try (Connection connection = getDataSource().getConnection()) {
- connection.setAutoCommit(false);
- executeWithLog(connection, "DELETE FROM account");
- assertFalse(connection.getAutoCommit());
- executeWithLog(connection, "INSERT INTO account VALUES (1, 1, 1)");
- connection.commit();
- assertFalse(connection.getAutoCommit());
- executeUpdateWithLog(connection, "INSERT INTO account VALUES (2, 2, 2)");
- connection.commit();
- assertFalse(connection.getAutoCommit());
- executeWithLog(connection, "INSERT INTO account VALUES (3, 3, 3)");
- connection.rollback();
- assertFalse(connection.getAutoCommit());
- assertAccountRowCount(connection, 2);
- connection.setAutoCommit(true);
- assertTrue(connection.getAutoCommit());
- executeWithLog(connection, "INSERT INTO account VALUES (4, 4, 4)");
- assertAccountRowCount(connection, 3);
- }
- }
-
- protected void assertAutoCommitWithPrepareStatement() throws SQLException {
- try (Connection connection = getDataSource().getConnection()) {
- connection.setAutoCommit(false);
- executeWithLog(connection, "DELETE FROM account");
- assertFalse(connection.getAutoCommit());
- PreparedStatement prepareStatement = connection.prepareStatement("INSERT INTO account VALUES(?, ?, ?)");
- setPrepareStatementParameters(prepareStatement, 1);
- prepareStatement.execute();
- connection.commit();
- assertFalse(connection.getAutoCommit());
- setPrepareStatementParameters(prepareStatement, 2);
- prepareStatement.executeUpdate();
- connection.commit();
- assertFalse(connection.getAutoCommit());
- setPrepareStatementParameters(prepareStatement, 3);
- prepareStatement.execute();
- connection.rollback();
- assertFalse(connection.getAutoCommit());
- assertAccountRowCount(connection, 2);
- connection.setAutoCommit(true);
- assertTrue(connection.getAutoCommit());
- setPrepareStatementParameters(prepareStatement, 4);
- prepareStatement.execute();
- assertAccountRowCount(connection, 3);
- }
- }
-
- private void setPrepareStatementParameters(final PreparedStatement prepareStatement, final int value) throws SQLException {
- prepareStatement.setInt(1, value);
- prepareStatement.setInt(2, value);
- prepareStatement.setInt(3, value);
- }
-}
diff --git a/test/it/optimizer/src/test/resources/converter/merge.xml b/test/it/optimizer/src/test/resources/converter/merge.xml
deleted file mode 100644
index d4c3291f09bba..0000000000000
--- a/test/it/optimizer/src/test/resources/converter/merge.xml
+++ /dev/null
@@ -1,23 +0,0 @@
-
-
-
-
-
-
-
-
diff --git a/test/it/parser/src/main/java/org/apache/shardingsphere/test/it/sql/parser/internal/asserts/segment/column/OuterJoinExpressionAssert.java b/test/it/parser/src/main/java/org/apache/shardingsphere/test/it/sql/parser/internal/asserts/segment/column/OuterJoinExpressionAssert.java
deleted file mode 100644
index 738487de9d9ee..0000000000000
--- a/test/it/parser/src/main/java/org/apache/shardingsphere/test/it/sql/parser/internal/asserts/segment/column/OuterJoinExpressionAssert.java
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.test.it.sql.parser.internal.asserts.segment.column;
-
-import lombok.AccessLevel;
-import lombok.NoArgsConstructor;
-import org.apache.shardingsphere.sql.parser.sql.dialect.segment.oracle.join.OuterJoinExpression;
-import org.apache.shardingsphere.test.it.sql.parser.internal.asserts.SQLCaseAssertContext;
-import org.apache.shardingsphere.test.it.sql.parser.internal.cases.parser.jaxb.segment.impl.expr.ExpectedOuterJoinExpression;
-
-import static org.junit.jupiter.api.Assertions.assertEquals;
-
-/**
- * Outer join expression assert.
- */
-
-@NoArgsConstructor(access = AccessLevel.PRIVATE)
-public final class OuterJoinExpressionAssert {
-
- /**
- * Assert actual outer join expression is correct with expected outer join expression.
- *
- * @param assertContext assert context
- * @param actual actual outer join expression
- * @param expected expected outer join expression
- */
-
- public static void assertIs(final SQLCaseAssertContext assertContext, final OuterJoinExpression actual, final ExpectedOuterJoinExpression expected) {
- ColumnAssert.assertIs(assertContext, actual.getColumnName(), expected.getColumn());
- assertEquals(actual.getJoinOperator(), expected.getJoinOperator());
- }
-}
diff --git a/test/it/parser/src/main/java/org/apache/shardingsphere/test/it/sql/parser/internal/cases/parser/jaxb/segment/impl/expr/ExpectedOuterJoinExpression.java b/test/it/parser/src/main/java/org/apache/shardingsphere/test/it/sql/parser/internal/cases/parser/jaxb/segment/impl/expr/ExpectedOuterJoinExpression.java
deleted file mode 100644
index 6e94e8e0d6963..0000000000000
--- a/test/it/parser/src/main/java/org/apache/shardingsphere/test/it/sql/parser/internal/cases/parser/jaxb/segment/impl/expr/ExpectedOuterJoinExpression.java
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.test.it.sql.parser.internal.cases.parser.jaxb.segment.impl.expr;
-
-import lombok.Getter;
-import lombok.Setter;
-import org.apache.shardingsphere.test.it.sql.parser.internal.cases.parser.jaxb.segment.AbstractExpectedSQLSegment;
-import org.apache.shardingsphere.test.it.sql.parser.internal.cases.parser.jaxb.segment.impl.column.ExpectedColumn;
-
-import javax.xml.bind.annotation.XmlElement;
-
-/**
- * Expected outer join expression.
- */
-@Getter
-@Setter
-public final class ExpectedOuterJoinExpression extends AbstractExpectedSQLSegment implements ExpectedExpressionSegment {
-
- @XmlElement
- private ExpectedColumn column;
-
- @XmlElement(name = "join-operator")
- private String joinOperator;
-
-}
diff --git a/test/it/parser/src/main/java/org/apache/shardingsphere/test/it/sql/parser/internal/cases/parser/jaxb/statement/ddl/CreateJavaStatementTestCase.java b/test/it/parser/src/main/java/org/apache/shardingsphere/test/it/sql/parser/internal/cases/parser/jaxb/statement/ddl/CreateJavaStatementTestCase.java
deleted file mode 100644
index 08ab8adb99eea..0000000000000
--- a/test/it/parser/src/main/java/org/apache/shardingsphere/test/it/sql/parser/internal/cases/parser/jaxb/statement/ddl/CreateJavaStatementTestCase.java
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.shardingsphere.test.it.sql.parser.internal.cases.parser.jaxb.statement.ddl;
-
-import org.apache.shardingsphere.test.it.sql.parser.internal.cases.parser.jaxb.SQLParserTestCase;
-
-/**
- * Create java statement test case.
- */
-public final class CreateJavaStatementTestCase extends SQLParserTestCase {
-}
diff --git a/test/it/parser/src/main/resources/case/ddl/create-java.xml b/test/it/parser/src/main/resources/case/ddl/create-java.xml
deleted file mode 100644
index d583d7d659d57..0000000000000
--- a/test/it/parser/src/main/resources/case/ddl/create-java.xml
+++ /dev/null
@@ -1,21 +0,0 @@
-
-
-
-
-
-
diff --git a/test/it/parser/src/main/resources/sql/supported/ddl/create-java.xml b/test/it/parser/src/main/resources/sql/supported/ddl/create-java.xml
deleted file mode 100644
index 81fda18cf7c40..0000000000000
--- a/test/it/parser/src/main/resources/sql/supported/ddl/create-java.xml
+++ /dev/null
@@ -1,21 +0,0 @@
-
-
-
-
-
-