fix #3287

Author: ZLATAN628

src/main/java/org/apache/ibatis/type/NClobTypeHandler.java

@@ -1,5 +1,5 @@
 /*
- *    Copyright 2009-2023 the original author or authors.
+ *    Copyright 2009-2024 the original author or authors.
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");
  *    you may not use this file except in compliance with the License.
@@ -17,7 +17,7 @@
 
 import java.io.StringReader;
 import java.sql.CallableStatement;
-import java.sql.Clob;
+import java.sql.NClob;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
@@ -31,29 +31,29 @@ public class NClobTypeHandler extends BaseTypeHandler<String> {
   public void setNonNullParameter(PreparedStatement ps, int i, String parameter, JdbcType jdbcType)
       throws SQLException {
     StringReader reader = new StringReader(parameter);
-    ps.setCharacterStream(i, reader, parameter.length());
+    ps.setNCharacterStream(i, reader, parameter.length());
   }
 
   @Override
   public String getNullableResult(ResultSet rs, String columnName) throws SQLException {
-    Clob clob = rs.getClob(columnName);
-    return toString(clob);
+    NClob nclob = rs.getNClob(columnName);
+    return toString(nclob);
   }
 
   @Override
   public String getNullableResult(ResultSet rs, int columnIndex) throws SQLException {
-    Clob clob = rs.getClob(columnIndex);
-    return toString(clob);
+    NClob nclob = rs.getNClob(columnIndex);
+    return toString(nclob);
   }
 
   @Override
   public String getNullableResult(CallableStatement cs, int columnIndex) throws SQLException {
-    Clob clob = cs.getClob(columnIndex);
-    return toString(clob);
+    NClob nclob = cs.getNClob(columnIndex);
+    return toString(nclob);
   }
 
-  private String toString(Clob clob) throws SQLException {
-    return clob == null ? null : clob.getSubString(1, (int) clob.length());
+  private String toString(NClob nclob) throws SQLException {
+    return nclob == null ? null : nclob.getSubString(1, (int) nclob.length());
   }
 
 }

src/test/java/org/apache/ibatis/type/NClobTypeHandlerTest.java

@@ -1,5 +1,5 @@
 /*
- *    Copyright 2009-2023 the original author or authors.
+ *    Copyright 2009-2024 the original author or authors.
  *
  *    Licensed under the Apache License, Version 2.0 (the "License");
  *    you may not use this file except in compliance with the License.
@@ -21,7 +21,7 @@
 import static org.mockito.Mockito.when;
 
 import java.io.Reader;
-import java.sql.Clob;
+import java.sql.NClob;
 
 import org.junit.jupiter.api.Test;
 import org.mockito.ArgumentMatchers;
@@ -32,60 +32,60 @@ class NClobTypeHandlerTest extends BaseTypeHandlerTest {
   private static final TypeHandler<String> TYPE_HANDLER = new NClobTypeHandler();
 
   @Mock
-  protected Clob clob;
+  protected NClob nclob;
 
   @Override
   @Test
   public void shouldSetParameter() throws Exception {
     TYPE_HANDLER.setParameter(ps, 1, "Hello", null);
-    verify(ps).setCharacterStream(ArgumentMatchers.eq(1), ArgumentMatchers.any(Reader.class), ArgumentMatchers.eq(5));
+    verify(ps).setNCharacterStream(ArgumentMatchers.eq(1), ArgumentMatchers.any(Reader.class), ArgumentMatchers.eq(5L));
   }
 
   @Override
   @Test
   public void shouldGetResultFromResultSetByName() throws Exception {
-    when(rs.getClob("column")).thenReturn(clob);
-    when(clob.length()).thenReturn(3L);
-    when(clob.getSubString(1, 3)).thenReturn("Hello");
+    when(rs.getNClob("column")).thenReturn(nclob);
+    when(nclob.length()).thenReturn(3L);
+    when(nclob.getSubString(1, 3)).thenReturn("Hello");
     assertEquals("Hello", TYPE_HANDLER.getResult(rs, "column"));
   }
 
   @Override
   @Test
   public void shouldGetResultNullFromResultSetByName() throws Exception {
-    when(rs.getClob("column")).thenReturn(null);
+    when(rs.getNClob("column")).thenReturn(null);
     assertNull(TYPE_HANDLER.getResult(rs, "column"));
   }
 
   @Override
   @Test
   public void shouldGetResultFromResultSetByPosition() throws Exception {
-    when(rs.getClob(1)).thenReturn(clob);
-    when(clob.length()).thenReturn(3L);
-    when(clob.getSubString(1, 3)).thenReturn("Hello");
+    when(rs.getNClob(1)).thenReturn(nclob);
+    when(nclob.length()).thenReturn(3L);
+    when(nclob.getSubString(1, 3)).thenReturn("Hello");
     assertEquals("Hello", TYPE_HANDLER.getResult(rs, 1));
   }
 
   @Override
   @Test
   public void shouldGetResultNullFromResultSetByPosition() throws Exception {
-    when(rs.getClob(1)).thenReturn(null);
+    when(rs.getNClob(1)).thenReturn(null);
     assertNull(TYPE_HANDLER.getResult(rs, 1));
   }
 
   @Override
   @Test
   public void shouldGetResultFromCallableStatement() throws Exception {
-    when(cs.getClob(1)).thenReturn(clob);
-    when(clob.length()).thenReturn(3L);
-    when(clob.getSubString(1, 3)).thenReturn("Hello");
+    when(cs.getNClob(1)).thenReturn(nclob);
+    when(nclob.length()).thenReturn(3L);
+    when(nclob.getSubString(1, 3)).thenReturn("Hello");
     assertEquals("Hello", TYPE_HANDLER.getResult(cs, 1));
   }
 
   @Override
   @Test
   public void shouldGetResultNullFromCallableStatement() throws Exception {
-    when(cs.getClob(1)).thenReturn(null);
+    when(cs.getNClob(1)).thenReturn(null);
     assertNull(TYPE_HANDLER.getResult(cs, 1));
   }