Merge 'bindings/java: Implement close() for LimboStatement and LimboResultSet ' from Kim Seon Woo

## Purpose of this PR
- Implement `close()` method for `LimboStatement`(+`JDBC4Statement`) and
`LimboResultSet`(+ `JDBC4ResultSet`)
## Changes
- Add `consumeAll` method in `LimboResultSet`
- Implement `close()` methods
  - Because  `JDBC4Statement` has longer lifecycle in compared to
`LimboStatement`, we manage different `close` fields(`LimboStatement` is
created when first `execute` method is called on `JDBC4Statemenet`)
## Reference
- [Issue](https://github.com/tursodatabase/limbo/issues/615)

Closes #799

bindings/java/src/test/java/org/github/tursodatabase/core/LimboStatementTest.java

@@ -0,0 +1,31 @@
+package org.github.tursodatabase.core;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+import java.util.Properties;
+import org.github.tursodatabase.TestUtils;
+import org.github.tursodatabase.jdbc4.JDBC4Connection;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+class LimboStatementTest {
+
+  private JDBC4Connection connection;
+
+  @BeforeEach
+  void setUp() throws Exception {
+    String filePath = TestUtils.createTempFile();
+    String url = "jdbc:sqlite:" + filePath;
+    connection = new JDBC4Connection(url, filePath, new Properties());
+  }
+
+  @Test
+  void closing_statement_closes_related_resources() throws Exception {
+    LimboStatement stmt = connection.prepare("SELECT 1;");
+    stmt.execute();
+
+    stmt.close();
+    assertTrue(stmt.isClosed());
+    assertFalse(stmt.getResultSet().isOpen());
+  }
+}

bindings/java/src/test/java/org/github/tursodatabase/jdbc4/JDBC4ResultSetTest.java

@@ -1,9 +1,11 @@
 package org.github.tursodatabase.jdbc4;
 
 import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
 import java.sql.ResultSet;
+import java.sql.SQLException;
 import java.sql.Statement;
 import java.util.Properties;
 import org.github.tursodatabase.TestUtils;
@@ -57,4 +59,24 @@ class JDBC4ResultSetTest {
     // as well
     assertFalse(resultSet.next());
   }
+
+  @Test
+  void close_resultSet_test() throws Exception {
+    stmt.executeQuery("SELECT 1;");
+    ResultSet resultSet = stmt.getResultSet();
+
+    assertFalse(resultSet.isClosed());
+    resultSet.close();
+    assertTrue(resultSet.isClosed());
+  }
+
+  @Test
+  void calling_methods_on_closed_resultSet_should_throw_exception() throws Exception {
+    stmt.executeQuery("SELECT 1;");
+    ResultSet resultSet = stmt.getResultSet();
+    resultSet.close();
+    assertTrue(resultSet.isClosed());
+
+    assertThrows(SQLException.class, resultSet::next);
+  }
 }

bindings/java/src/test/java/org/github/tursodatabase/jdbc4/JDBC4StatementTest.java

@@ -3,6 +3,7 @@ package org.github.tursodatabase.jdbc4;
 import static org.junit.jupiter.api.Assertions.*;
 
 import java.sql.ResultSet;
+import java.sql.SQLException;
 import java.sql.Statement;
 import java.util.Properties;
 import org.github.tursodatabase.TestUtils;
@@ -51,4 +52,22 @@ class JDBC4StatementTest {
     stmt.execute("INSERT INTO users VALUES (1, 'limbo');");
     assertTrue(stmt.execute("SELECT * FROM users;"));
   }
+
+  @Test
+  void close_statement_test() throws Exception {
+    stmt.close();
+    assertTrue(stmt.isClosed());
+  }
+
+  @Test
+  void double_close_is_no_op() throws SQLException {
+    stmt.close();
+    assertDoesNotThrow(() -> stmt.close());
+  }
+
+  @Test
+  void operations_on_closed_statement_should_throw_exception() throws Exception {
+    stmt.close();
+    assertThrows(SQLException.class, () -> stmt.execute("SELECT 1;"));
+  }
 }