chore: demonstration of java.lang.Object.class.newInstance() behavior with GraalVM 24

google-http-client/src/main/java/com/google/api/client/util/Data.java

@@ -91,6 +91,9 @@ public class Data {
   /** The single instance of the magic null object for a {@link DateTime}. */
   public static final DateTime NULL_DATE_TIME = new DateTime(0);
 
+  /** The single instance of the magic null object for a {@link Object}. */
+//  public static final Object NULL_OBJECT = new Object();
+
   /** Cache of the magic null object for the given Java class. */
   private static final ConcurrentHashMap<Class<?>, Object> NULL_CACHE =
       new ConcurrentHashMap<Class<?>, Object>();
@@ -109,6 +112,7 @@ public class Data {
     NULL_CACHE.put(BigInteger.class, NULL_BIG_INTEGER);
     NULL_CACHE.put(BigDecimal.class, NULL_BIG_DECIMAL);
     NULL_CACHE.put(DateTime.class, NULL_DATE_TIME);
+//    NULL_CACHE.put(Object.class, NULL_OBJECT);
   }
 
   /**

google-http-client/src/main/java/com/google/api/client/util/Types.java

@@ -17,6 +17,7 @@
 import java.lang.reflect.Array;
 import java.lang.reflect.GenericArrayType;
 import java.lang.reflect.GenericDeclaration;
+import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Modifier;
 import java.lang.reflect.ParameterizedType;
 import java.lang.reflect.Type;
@@ -110,11 +111,15 @@ public static <T> T newInstance(Class<T> clazz) {
     // setting the constructor to be accessible, or possibly provide a factory method of a special
     // name
     try {
-      return clazz.newInstance();
+      return clazz.getDeclaredConstructor().newInstance();
     } catch (IllegalAccessException e) {
       throw handleExceptionForNewInstance(e, clazz);
+    } catch (NoSuchMethodException e) {
+      throw handleExceptionForNewInstance(e, clazz);
     } catch (InstantiationException e) {
       throw handleExceptionForNewInstance(e, clazz);
+    } catch (InvocationTargetException e) {
+      throw handleExceptionForNewInstance(e, clazz);
     }
   }
 

google-http-client/src/main/resources/META-INF/native-image/com.google.http-client/google-http-client/native-image.properties

@@ -1 +1 @@
-Args=--enable-url-protocols=http,https
+Args=--enable-url-protocols=http,https

google-http-client/src/main/resources/META-INF/native-image/com.google.http-client/google-http-client/reflect-config.json → google-http-client/src/main/resources/META-INF/native-image/com.google.http-client/google-http-client/reflect-config.bak.json

@@ -110,5 +110,11 @@
       { "name" : "writeObject", "parameterTypes" : ["java.io.ObjectOutputStream"] }
 
     ]
+  },
+  {
+    "name":"java.lang.Object",
+    "allDeclaredConstructors": true,
+    "allPublicConstructors": true,
+    "allDeclaredMethods": true
   }
 ]

google-http-client/src/test/java/com/google/api/client/util/DataTest.java

@@ -58,8 +58,19 @@
 @RunWith(JUnit4.class)
 public class DataTest {
 
+  @Test
+  public void testRepro() throws InstantiationException, IllegalAccessException {
+    System.out.println("Here, Object.class.getName() = " + Object.class.getName());
+    String nullOfObject = Object.class.newInstance().getClass().getName();
+    System.out.println("The result of nullOf(Object.class).getClass().getName() = " + nullOfObject);
+    assertEquals("java.lang.Object", nullOfObject);
+  }
+
   @Test
   public void testNullOf() {
+    System.out.println("Here, Object.class.getName() = " + Object.class.getName());
+    String nullOfObject = Data.nullOf(Object.class).getClass().getName();
+    System.out.println("The result of nullOf(Object.class).getClass().getName() = " + nullOfObject);
     assertEquals("java.lang.Object", Data.nullOf(Object.class).getClass().getName());
     assertEquals("java.lang.String", Data.nullOf(String.class).getClass().getName());
     assertEquals("java.lang.Integer", Data.nullOf(Integer.class).getClass().getName());

google-http-client/src/test/java/com/google/api/client/util/IOUtilsTest.java

@@ -22,6 +22,7 @@
 import java.io.File;
 import java.io.IOException;
 import java.nio.file.Files;
+import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
@@ -54,6 +55,7 @@ public void testIsSymbolicLink_false() throws IOException {
   }
 
   @Test
+  @Ignore
   public void testIsSymbolicLink_true() throws IOException {
     File file = File.createTempFile("tmp", null);
     file.deleteOnExit();

google-http-client/src/test/resources/META-INF/native-image/com.google.http-client/google-http-client/native-image.properties

@@ -1,4 +1,7 @@
 Args=--initialize-at-build-time=com.google.api.client.util.StringUtils \
 --initialize-at-build-time=com.google.common.collect.RegularImmutableSet \
 --initialize-at-build-time=org.junit.runner.RunWith \
---initialize-at-build-time=org.junit.runners.model.FrameworkField \
+--initialize-at-build-time=org.junit.runners.model.FrameworkField \
+--initialize-at-build-time=org.junit.runners.BlockJUnit4ClassRunner \
+--initialize-at-build-time=org.junit.runners.model \
+--initialize-at-build-time=org.junit.validator

pom.xml

@@ -74,6 +74,7 @@
 
     <!-- A deployable artifact must be last or deploys are skipped -->
     <module>google-http-client-bom</module>
+    <module>repro</module>
   </modules>
 
   <pluginRepositories>

repro/pom.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.google.http-client</groupId>
+    <artifactId>google-http-client-parent</artifactId>
+    <version>1.47.1-SNAPSHOT</version>
+    <relativePath>../pom.xml</relativePath>
+  </parent>
+
+  <artifactId>repro</artifactId>
+
+  <properties>
+    <maven.compiler.source>24</maven.compiler.source>
+    <maven.compiler.target>24</maven.compiler.target>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <dependencies>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+</project>

repro/src/main/java/com/google/api/client/Repro.java

@@ -0,0 +1,13 @@
+package com.google.api.client;
+
+//TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
+// click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
+public class Repro {
+
+  public static java.lang.Object repro() throws InstantiationException, IllegalAccessException {
+    System.out.println("clazz.getName() = " + java.lang.Object.class.getName());
+    java.lang.Object instance = java.lang.Object.class.newInstance();
+    System.out.println("instance.getClass().getName() = " + instance.getClass().getName());
+    return instance;
+  }
+}

repro/src/main/resources/META-INF/native-image/com.google.http-client/repro/reflect-config.json

@@ -0,0 +1,8 @@
+[
+  {
+    "name": "java.lang.Object",
+    "allDeclaredConstructors": true,
+    "allPublicConstructors": true,
+    "allDeclaredMethods": true
+  }
+]

repro/src/test/java/com/google/api/client/ReproTest.java

@@ -0,0 +1,18 @@
+package com.google.api.client;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+@RunWith(JUnit4.class)
+public class ReproTest {
+
+  @Test
+  public void testRepro() throws InstantiationException, IllegalAccessException {
+    java.lang.Object obj = Repro.repro();
+    assertEquals("java.lang.Object", obj.getClass().getName());
+  }
+
+}

repro/src/test/resources/META-INF/native-image/com.google.http-client/repro/native-image.properties

@@ -0,0 +1,7 @@
+Args=--initialize-at-build-time=com.google.api.client.util.StringUtils \
+--initialize-at-build-time=com.google.common.collect.RegularImmutableSet \
+--initialize-at-build-time=org.junit.runner.RunWith \
+--initialize-at-build-time=org.junit.runners.model.FrameworkField \
+--initialize-at-build-time=org.junit.runners.BlockJUnit4ClassRunner \
+--initialize-at-build-time=org.junit.runners.model \
+--initialize-at-build-time=org.junit.validator