Add RuntimeHints for Core classes

Closes gh-699

Author: marcusdacoregio

core/src/main/java/org/springframework/ldap/aot/hint/LdapCoreRuntimeHints.java

@@ -0,0 +1,28 @@
+package org.springframework.ldap.aot.hint;
+
+import org.springframework.aot.hint.MemberCategory;
+import org.springframework.aot.hint.RuntimeHints;
+import org.springframework.aot.hint.RuntimeHintsRegistrar;
+import org.springframework.aot.hint.TypeReference;
+import org.springframework.ldap.core.support.AbstractContextSource;
+import org.springframework.ldap.core.support.DefaultDirObjectFactory;
+
+/**
+ * A {@link RuntimeHintsRegistrar} for LDAP Core classes
+ *
+ * @author Marcus Da Coregio
+ * @since 3.0
+ */
+class LdapCoreRuntimeHints implements RuntimeHintsRegistrar {
+
+	@Override
+	public void registerHints(RuntimeHints hints, ClassLoader classLoader) {
+		hints.reflection().registerType(TypeReference.of("com.sun.jndi.ldap.LdapCtxFactory"),
+				(builder) -> builder.withMembers(MemberCategory.INVOKE_PUBLIC_CONSTRUCTORS));
+		hints.reflection().registerType(AbstractContextSource.class, (builder) -> builder
+				.withMembers(MemberCategory.INTROSPECT_DECLARED_METHODS, MemberCategory.DECLARED_FIELDS));
+		hints.reflection().registerType(DefaultDirObjectFactory.class,
+				(builder) -> builder.withMembers(MemberCategory.INVOKE_PUBLIC_CONSTRUCTORS));
+	}
+
+}

core/src/main/resources/META-INF/spring/aot.factories

@@ -0,0 +1,2 @@
+org.springframework.aot.hint.RuntimeHintsRegistrar=\
+org.springframework.ldap.aot.hint.LdapCoreRuntimeHints

core/src/test/java/org/springframework/ldap/aot/hint/LdapCoreRuntimeHintsTests.java

@@ -0,0 +1,49 @@
+package org.springframework.ldap.aot.hint;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import org.springframework.aot.hint.MemberCategory;
+import org.springframework.aot.hint.RuntimeHints;
+import org.springframework.aot.hint.RuntimeHintsRegistrar;
+import org.springframework.aot.hint.TypeReference;
+import org.springframework.aot.hint.predicate.RuntimeHintsPredicates;
+import org.springframework.core.io.support.SpringFactoriesLoader;
+import org.springframework.ldap.core.support.AbstractContextSource;
+import org.springframework.ldap.core.support.DefaultDirObjectFactory;
+import org.springframework.util.ClassUtils;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link LdapCoreRuntimeHints}
+ */
+public class LdapCoreRuntimeHintsTests {
+
+	private final RuntimeHints hints = new RuntimeHints();
+
+	@Before
+	public void setup() {
+		SpringFactoriesLoader.forResourceLocation("META-INF/spring/aot.factories").load(RuntimeHintsRegistrar.class)
+				.forEach((registrar) -> registrar.registerHints(this.hints, ClassUtils.getDefaultClassLoader()));
+	}
+
+	@Test
+	public void ldapCtxFactoryHasHints() {
+		assertThat(RuntimeHintsPredicates.reflection().onType(TypeReference.of("com.sun.jndi.ldap.LdapCtxFactory")).withMemberCategories(MemberCategory.INVOKE_PUBLIC_CONSTRUCTORS))
+				.accepts(this.hints);
+	}
+
+	@Test
+	public void abstractContextSourceHasHints() {
+		assertThat(RuntimeHintsPredicates.reflection().onType(AbstractContextSource.class).withMemberCategories(MemberCategory.INTROSPECT_DECLARED_METHODS, MemberCategory.DECLARED_FIELDS))
+				.accepts(this.hints);
+	}
+
+	@Test
+	public void defaultDirObjectFactoryHasHints() {
+		assertThat(RuntimeHintsPredicates.reflection().onType(DefaultDirObjectFactory.class).withMemberCategories(MemberCategory.INVOKE_PUBLIC_CONSTRUCTORS))
+				.accepts(this.hints);
+	}
+
+}