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Code sample - 23c JDBC Driver GraalVM Native Executable (#316)
* Code sample - 23c JDBC Driver GraalVM Native Executable * code sample adjustments * code sample adjustments * fix indentation + close JDBC resources
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‎java/jdbc-driver-graalvm-nativeimage/.gitignore

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# Java related
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target/
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*.jar
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*.war
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*.ear
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*.class
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# Log file
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*.log
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# Package Files
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*.jar
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*.nar
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# JVM crash logs - http://www.java.com/en/download/help/error_hotspot.xml
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hs_err_pid*
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# Eclipse.gitignore - https://github.com/github/gitignore/blob/main/Global/Eclipse.gitignore
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‎java/jdbc-driver-graalvm-nativeimage/README.md

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# jdbc-driver-graalvm-nativeimage
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[Introduction to Oracle JDBC Driver Configuration for GraalVM Native Image](https://juarezjunior.medium.com/introduction-to-oracle-jdbc-driver-configuration-for-graalvm-native-image-6130e699d03b)

‎java/jdbc-driver-graalvm-nativeimage/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.oracle.jdbc.graalvm</groupId>
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<artifactId>jdbc-driver-graalvm-nativeimage</artifactId>
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<version>1.0-SNAPSHOT</version>
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<name>jdbc-driver-graalvm-nativeimage</name>
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<description>Introduction to Oracle JDBC Driver Configuration for GraalVM
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Native Image</description>
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<url>
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https://juarezjunior.medium.com/introduction-to-oracle-jdbc-driver-configuration-for-graalvm-native-image-6130e699d03b</url>
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<maven.compiler.source>21</maven.compiler.source>
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<maven.compiler.target>21</maven.compiler.target>
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</properties>
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<dependencies>
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<dependency>
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<groupId>com.oracle.database.jdbc</groupId>
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<artifactId>ojdbc11</artifactId>
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<version>23.4.0.24.05</version>
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</dependency>
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<dependency>
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<groupId>org.graalvm.buildtools</groupId>
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<artifactId>native-maven-plugin</artifactId>
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<version>0.9.28</version>
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</dependency>
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<dependency>
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<groupId>org.graalvm.nativeimage</groupId>
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<artifactId>svm</artifactId>
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<version>23.1.1</version>
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<scope>provided</scope>
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</dependency>
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</dependencies>
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<build>
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<pluginManagement><!-- lock down plugins versions to avoid using Maven
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defaults (may be moved to parent pom) -->
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<plugins>
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<plugin>
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<artifactId>maven-clean-plugin</artifactId>
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<version>3.1.0</version>
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</plugin>
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<plugin>
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<artifactId>maven-resources-plugin</artifactId>
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<version>3.0.2</version>
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</plugin>
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<plugin>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>3.8.0</version>
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</plugin>
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<plugin>
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<artifactId>maven-surefire-plugin</artifactId>
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<version>2.22.1</version>
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</plugin>
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<plugin>
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<artifactId>maven-jar-plugin</artifactId>
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<version>3.0.2</version>
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<configuration>
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<archive>
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<manifest>
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<mainClass>
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com.oracle.jdbc.graalvm.GraalVMNativeImageJDBCDriver</mainClass>
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</manifest>
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</archive>
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</configuration>
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</plugin>
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<plugin>
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<artifactId>maven-install-plugin</artifactId>
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<version>2.5.2</version>
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</plugin>
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<plugin>
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<artifactId>maven-deploy-plugin</artifactId>
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<version>2.8.2</version>
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</plugin>
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</plugins>
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</pluginManagement>
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</build>
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<profiles>
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<profile>
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<id>native</id>
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<build>
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<plugins>
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<plugin>
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<groupId>org.graalvm.buildtools</groupId>
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<artifactId>native-maven-plugin</artifactId>
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<version>0.9.28</version>
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<extensions>true</extensions>
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<executions>
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<execution>
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<id>build-native</id>
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<goals>
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<goal>compile-no-fork</goal>
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</goals>
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<phase>package</phase>
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</execution>
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<execution>
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<id>test-native</id>
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<goals>
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<goal>test</goal>
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</goals>
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<phase>test</phase>
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</execution>
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</executions>
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<configuration>
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<fallback>true</fallback>
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<buildArgs>
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<arg>-H:DashboardDump=jdbc-driver-graalvm-nativeimage
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-H:+DashboardAll</arg>
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<arg>-H:+DashboardAll</arg>
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</buildArgs>
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<agent>
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<enabled>true</enabled>
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</agent>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</profile>
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</profiles>
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</project>

‎java/jdbc-driver-graalvm-nativeimage/src/main/java/com/oracle/jdbc/graalvm/GraalVMNativeImageJDBCDriver.java

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/*
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Copyright (c) 2024, Oracle and/or its affiliates.
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This software is dual-licensed to you under the Universal Permissive License
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(UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl or Apache License
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2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose
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either license.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package com.oracle.jdbc.graalvm;
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import java.sql.Connection;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import oracle.jdbc.pool.OracleDataSource;
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public class GraalVMNativeImageJDBCDriver {
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public static void main(String[] args) throws SQLException {
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OracleDataSource ods = new OracleDataSource();
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// jdbc:oracle:thin@[hostname]:[port]/[DB service/name]
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ods.setURL("jdbc:oracle:thin@[hostname]:[port]/[DB service/name]");
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ods.setUser("[Username]");
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ods.setPassword("[Password]");
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try (Connection conn = ods.getConnection();
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PreparedStatement stmt = conn
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.prepareStatement("SELECT 'Hello World!' FROM dual");
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ResultSet rslt = stmt.executeQuery();) {
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while (rslt.next()) {
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System.out.println(rslt.getString(1));
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}
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} catch (SQLException e) {
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e.printStackTrace();
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}
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}
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}

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