import java.sql.Connection;
import java.sql.DriverManager;

class duckdb {
    public static void main(String[] args) {
        try {
            Connection conn = DriverManager.getConnection("jdbc:duckdb:test-temp.db");
            Connection conn2 = DriverManager.getConnection("jdbc:duckdb:test-temp.db");

            conn.close();
            conn2.close();
        } catch (Exception e) {
            System.out.println(e);
            e.printStackTrace();
        }
    }
}

java.sql.SQLException: Connection Error: Instance with path: /Users/pellsworth/test-duckdb/test-temp.db already exists.
	at org.duckdb.DuckDBNative.duckdb_jdbc_startup(Native Method)
	at org.duckdb.DuckDBDatabase.<init>(DuckDBDatabase.java:28)
	at org.duckdb.DuckDBDriver.connect(DuckDBDriver.java:36)
	at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:677)
	at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:251)
	at duckdb.main(duckdb.java:8)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at jdk.compiler/com.sun.tools.javac.launcher.Main.execute(Main.java:404)
	at jdk.compiler/com.sun.tools.javac.launcher.Main.run(Main.java:179)
	at jdk.compiler/com.sun.tools.javac.launcher.Main.main(Main.java:119)