BAEL-7670: Introduction to DuckDB (#16430)

persistence-modules/duckdb/pom.xml

@@ -6,18 +6,6 @@
     <groupId>org.baeldung</groupId>
     <artifactId>duckdb</artifactId>
     <name>duckdb</name>
-    <build>
-        <plugins>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-compiler-plugin</artifactId>
-                <configuration>
-                    <source>9</source>
-                    <target>9</target>
-                </configuration>
-            </plugin>
-        </plugins>
-    </build>
     <version>0.0.1-SNAPSHOT</version>
 
     <parent>

persistence-modules/duckdb/src/test/java/com/baeldung/DuckDbAccessIntegrationTest.java

@@ -7,6 +7,7 @@ import org.junit.jupiter.api.Test;
 
 import java.io.File;
 import java.io.IOException;
+import java.net.URL;
 import java.sql.Connection;
 import java.sql.DriverManager;
 import java.sql.PreparedStatement;
@@ -18,6 +19,7 @@ import java.util.ArrayList;
 import java.util.Calendar;
 import java.util.Date;
 import java.util.List;
+import java.util.Optional;
 
 import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
 
@@ -167,7 +169,20 @@ class DuckDbAccessIntegrationTest {
     }
 
     private String getResourceAbsolutePath(String name) {
-        return this.getClass().getResource(name).getPath().replaceFirst("/", "");
+        return Optional.ofNullable(this.getClass()
+                        .getResource(name))
+                .map(URL::getPath)
+                .map(this::removeSlashFromPathIfWindows)
+                .orElseThrow(IllegalArgumentException::new);
+    }
+
+    private String removeSlashFromPathIfWindows(String path) {
+        if (System.getProperty("os.name")
+                .toLowerCase()
+                .contains("win")) {
+            return path.replaceFirst("/", "");
+        }
+        return path;
     }
 
     private int getTableRowCount(Connection conn, String tableName) throws SQLException {