Add hints for HikariCP

Closes gh-1599

Author: mhalbritter

samples/data-jdbc/src/main/java/com/example/data/jdbc/JdbcApplication.java

@@ -15,8 +15,14 @@
  */
 package com.example.data.jdbc;
 
+import javax.sql.DataSource;
+
+import com.zaxxer.hikari.HikariDataSource;
+
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;
+import org.springframework.context.annotation.Bean;
 import org.springframework.data.jdbc.repository.config.EnableJdbcAuditing;
 
 @SpringBootApplication
@@ -27,4 +33,10 @@ public static void main(String[] args) throws Exception {
 		SpringApplication.run(JdbcApplication.class);
 		Thread.currentThread().join(); // To be able to measure memory consumption
 	}
+
+	@Bean
+	// See https://github.com/spring-projects-experimental/spring-native/issues/1599
+	public DataSource datasource(DataSourceProperties dataSourceProperties) {
+		return dataSourceProperties.initializeDataSourceBuilder().type(HikariDataSource.class).build();
+	}
 }

spring-native-configuration/src/main/java/com/zaxxer/HikariHints.java

@@ -0,0 +1,19 @@
+package com.zaxxer;
+
+import java.sql.Statement;
+
+import com.zaxxer.hikari.HikariDataSource;
+import com.zaxxer.hikari.util.ConcurrentBag.IConcurrentBagEntry;
+
+import org.springframework.nativex.hint.NativeHint;
+import org.springframework.nativex.hint.TypeAccess;
+import org.springframework.nativex.hint.TypeHint;
+import org.springframework.nativex.type.NativeConfiguration;
+
+@NativeHint(trigger = HikariDataSource.class, types = {
+		@TypeHint(types = HikariDataSource.class, access = TypeAccess.PUBLIC_CONSTRUCTORS),
+		@TypeHint(types = Statement[].class, access = {}),
+		@TypeHint(types = IConcurrentBagEntry[].class, access = {})
+})
+public class HikariHints implements NativeConfiguration {
+}

spring-native-configuration/src/main/resources/META-INF/spring.factories

@@ -19,6 +19,7 @@ org.mariadb.MariaDbHints,\
 com.mysql.cj.MySqlHints,\
 com.wavefront.spring.actuate.WavefrontEndpointHints,\
 com.wavefront.spring.actuate.WavefrontHints,\
+com.zaxxer.HikariHints,\
 org.hamcrest.HamcrestHints,\
 org.HdrHistogram.HdrHistogramHints,\
 org.hibernate.HibernateHints,\