Exception

Exception in thread "main" org.springframework.jdbc.BadSqlGrammarException: StatementCallback; bad SQL grammar [CREATE TABLE test (id INTEGER PRIMARY KEY)]; nested exception is org.h2.jdbc.JdbcSQLException: Tabelle "TEST" besteht bereits
Table "TEST" already exists; SQL statement:
CREATE TABLE test (id INTEGER PRIMARY KEY) [42101-188]
	at org.springframework.jdbc.support.SQLErrorCodeSQLExceptionTranslator.doTranslate(SQLErrorCodeSQLExceptionTranslator.java:231)
	at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:73)
	at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:415)
	at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:439)
	at TestMain.main(TestMain.java:19)
Caused by: org.h2.jdbc.JdbcSQLException: Tabelle "TEST" besteht bereits
Table "TEST" already exists; SQL statement:
CREATE TABLE test (id INTEGER PRIMARY KEY) [42101-188]
	at org.h2.message.DbException.getJdbcSQLException(DbException.java:345)
	at org.h2.message.DbException.get(DbException.java:179)
	at org.h2.message.DbException.get(DbException.java:155)
	at org.h2.command.ddl.CreateTable.update(CreateTable.java:115)
	at org.h2.command.CommandContainer.update(CommandContainer.java:78)
	at org.h2.command.Command.executeUpdate(Command.java:254)
	at org.h2.jdbc.JdbcStatement.executeInternal(JdbcStatement.java:184)
	at org.h2.jdbc.JdbcStatement.execute(JdbcStatement.java:158)
	at org.springframework.jdbc.core.JdbcTemplate$1ExecuteStatementCallback.doInStatement(JdbcTemplate.java:431)
	at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:404)
	... 7 more

TestMain.java

import org.h2.jdbcx.JdbcDataSource;
import org.springframework.jdbc.core.JdbcTemplate;
import java.io.IOException;
import java.sql.SQLException;

public class TestMain {
    public static void main(String[] args) throws SQLException, IOException {
        
        //Works:
        String file = "./testdb";
        //Does not work:
        //String file = "mem:";
        
        JdbcDataSource dataSource = new JdbcDataSource();
        dataSource.setUrl("jdbc:h2:" + file);
        JdbcTemplate temp = new JdbcTemplate(dataSource);
        temp.execute("CREATE TABLE test (id INTEGER PRIMARY KEY)");
        temp.update("INSERT INTO test (id) VALUES (1), (2)");
        temp.query("SELECT * FROM test", (rs, rowNum) -> {
            System.out.println(rs);
            return null;
        });
    }
}