🆕 #1392 增加weixin-graal模块，配合graal以产生native-image配置。

目的：解决native-image中gson功能无效的问题。

可以通过项目的 native-image Profile 来启用:
mvn -P native-image -Dmaven.test.skip=true clean source:jar install

编译时会在各包中增加2个文件：
META-INF/native-image/.../reflection-config.json
META-INF/native-image/.../native-image.properties

pom.xml

@@ -99,6 +99,7 @@
   </scm>
 
   <modules>
+    <module>weixin-graal</module>
     <module>weixin-java-common</module>
     <module>weixin-java-cp</module>
     <module>weixin-java-mp</module>
@@ -331,6 +332,14 @@
         </plugins>
       </build>
     </profile>
+
+    <profile>
+      <id>native-image</id>
+      <activation>
+        <activeByDefault>false</activeByDefault>
+      </activation>
+    </profile>
+
   </profiles>
 
   <build>

weixin-graal/pom.xml

@@ -0,0 +1,40 @@
+<?xml version="1.0"?>
+<project 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"
+         xmlns="http://maven.apache.org/POM/4.0.0">
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <groupId>com.github.binarywang</groupId>
+    <artifactId>wx-java</artifactId>
+    <version>3.6.7.B</version>
+  </parent>
+
+  <artifactId>weixin-graal</artifactId>
+  <name>WxJava - Graal</name>
+  <description>微信开发Java内部配合graal以产生native-image配置的辅助工具, 可以通过项目的 native-image Profile 来启用: mvn -P native-image ...
+  </description>
+
+  <dependencies>
+
+    <dependency>
+      <groupId>org.projectlombok</groupId>
+      <artifactId>lombok</artifactId>
+      <scope>compile</scope>
+    </dependency>
+
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>3.5.1</version>
+        <configuration>
+          <proc>none</proc>
+        </configuration>
+      </plugin>
+    </plugins>
+  </build>
+
+</project>

weixin-graal/src/main/java/cn/binarywang/wx/graal/GraalProcessor.java

@@ -0,0 +1,167 @@
+package cn.binarywang.wx.graal;
+
+import lombok.Data;
+
+import javax.annotation.processing.AbstractProcessor;
+import javax.annotation.processing.RoundEnvironment;
+import javax.annotation.processing.SupportedAnnotationTypes;
+import javax.annotation.processing.SupportedSourceVersion;
+import javax.lang.model.SourceVersion;
+import javax.lang.model.element.TypeElement;
+import javax.lang.model.type.DeclaredType;
+import javax.lang.model.type.TypeKind;
+import javax.lang.model.type.TypeMirror;
+import javax.lang.model.util.ElementFilter;
+import javax.tools.FileObject;
+import javax.tools.StandardLocation;
+import java.io.IOException;
+import java.io.Writer;
+import java.util.Set;
+import java.util.SortedSet;
+import java.util.TreeSet;
+
+// 目前仅仅处理@Data，且必须在lombok自己的processor之前执行，千万注意！！！！！
+@SupportedAnnotationTypes("lombok.Data")
+@SupportedSourceVersion(SourceVersion.RELEASE_7)
+public class GraalProcessor extends AbstractProcessor {
+
+  private static final String REFLECTION_CONFIG_JSON = "reflection-config.json";
+  private static final String NATIVE_IMAGE_PROPERTIES = "native-image.properties";
+
+  private SortedSet<String> classSet = new TreeSet<>();
+  private String shortestPackageName = null;
+
+  @Override
+  public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
+    for (TypeElement annotatedClass : ElementFilter.typesIn(roundEnv.getElementsAnnotatedWith(Data.class))) {
+
+      registerClass(annotatedClass.getQualifiedName().toString());
+      handleSuperClass(annotatedClass);
+    }
+
+    //只有最后一轮才可以写文件，否则文件会被重复打开，报错！
+    if (!roundEnv.processingOver()) return false;
+
+    // 如果没有文件要写，跳过
+    if (classSet.isEmpty()) return false;
+
+    writeFiles();
+
+    //必须返回false，以便让lombok能继续处理。
+    return false;
+  }
+
+  /**
+   * 设置当前最短的package名称
+   *
+   * @param packageName 包名
+   */
+  private void setShortestPackageName(String packageName) {
+    if (shortestPackageName == null) {
+      shortestPackageName = packageName;
+    } else if (packageName.length() < shortestPackageName.length()) {
+      shortestPackageName = packageName;
+    }
+  }
+
+  /**
+   * 更加完整的类名来获取package名称
+   *
+   * @param fullClassName 完整的类名
+   * @return package name
+   */
+  private String getPackageName(String fullClassName) {
+    int last = fullClassName.lastIndexOf('.');
+    if (last == -1) return fullClassName;
+    return fullClassName.substring(0, last);
+  }
+
+  /**
+   * 保存文件
+   * META-INF/native-image/.../reflection-config.json
+   * META-INF/native-image/.../native-image.properties
+   */
+  private void writeFiles() {
+    String basePackage = shortestPackageName;
+
+    String module;
+    if (basePackage.contains(".")) {
+      final int i = basePackage.lastIndexOf('.');
+      module = basePackage.substring(i + 1);
+      basePackage = basePackage.substring(0, i);
+    } else {
+      module = basePackage;
+    }
+
+    String path = "META-INF/native-image/" + basePackage + "/" + module + "/";
+    String reflectFile = path + REFLECTION_CONFIG_JSON;
+    String propsFile = path + NATIVE_IMAGE_PROPERTIES;
+    try {
+      FileObject fileObject = processingEnv.getFiler().createResource(StandardLocation.CLASS_OUTPUT, "", propsFile);
+      Writer writer = fileObject.openWriter();
+      writer.append("Args = -H:ReflectionConfigurationResources=${.}/" + REFLECTION_CONFIG_JSON);
+      writer.close();
+    } catch (IOException e) {
+      e.printStackTrace();
+    }
+
+    try {
+      FileObject fileObject = processingEnv.getFiler().createResource(StandardLocation.CLASS_OUTPUT, "", reflectFile);
+      Writer writer = fileObject.openWriter();
+      writer.write("[\n");
+      boolean first = true;
+      for (String name : classSet) {
+        if (first) {
+          first = false;
+        } else {
+          writer.write(",");
+        }
+        writer.write(assetGraalJsonElement(name));
+        writer.append('\n');
+      }
+      writer.write("]");
+      writer.close();
+    } catch (IOException e) {
+      e.printStackTrace();
+    }
+
+  }
+
+  private String assetGraalJsonElement(String className) {
+    return "{\n" +
+      "  \"name\" : \"" + className + "\",\n" +
+      "  \"allDeclaredFields\":true,\n" +
+      "  \"allDeclaredMethods\":true,\n" +
+      "  \"allDeclaredConstructors\":true,\n" +
+      "  \"allPublicMethods\" : true\n" +
+      "}";
+  }
+
+  /**
+   * 登记一个class
+   *
+   * @param className 完整的类名
+   */
+  private void registerClass(String className) {
+    classSet.add(className);
+    setShortestPackageName(getPackageName(className));
+  }
+
+  /**
+   * 获取一个类型的所有的父类，并登记
+   *
+   * @param typeElement 类型元素
+   */
+  private void handleSuperClass(TypeElement typeElement) {
+    TypeMirror superclass = typeElement.getSuperclass();
+    if (superclass.getKind() == TypeKind.DECLARED) {
+      TypeElement s = (TypeElement) ((DeclaredType) superclass).asElement();
+      String sName = s.toString();
+      // ignore java.**/javax.**
+      if (sName.startsWith("java.") || sName.startsWith("javax.")) return;
+      registerClass(sName);
+      handleSuperClass(s);
+    }
+  }
+
+}

weixin-graal/src/main/resources/META-INF/services/javax.annotation.processing.Processor

@@ -0,0 +1 @@
+cn.binarywang.wx.graal.GraalProcessor

weixin-java-common/pom.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
-<project  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"
-  xmlns="http://maven.apache.org/POM/4.0.0">
+<project 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"
+         xmlns="http://maven.apache.org/POM/4.0.0">
   <modelVersion>4.0.0</modelVersion>
   <parent>
     <groupId>com.github.binarywang</groupId>
@@ -134,4 +134,36 @@
     </plugins>
   </build>
 
+  <profiles>
+    <profile>
+      <id>native-image</id>
+      <activation>
+        <activeByDefault>false</activeByDefault>
+      </activation>
+
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-compiler-plugin</artifactId>
+            <version>3.5.1</version>
+            <configuration>
+              <annotationProcessors>
+                cn.binarywang.wx.graal.GraalProcessor,lombok.launch.AnnotationProcessorHider$AnnotationProcessor,lombok.launch.AnnotationProcessorHider$ClaimingProcessor
+              </annotationProcessors>
+              <annotationProcessorPaths>
+                <path>
+                  <groupId>com.github.binarywang</groupId>
+                  <artifactId>weixin-graal</artifactId>
+                  <version>${project.version}</version>
+                </path>
+              </annotationProcessorPaths>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+
+    </profile>
+  </profiles>
+
 </project>

weixin-java-cp/pom.xml

@@ -95,4 +95,36 @@
     </plugins>
   </build>
 
+  <profiles>
+    <profile>
+      <id>native-image</id>
+      <activation>
+        <activeByDefault>false</activeByDefault>
+      </activation>
+
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-compiler-plugin</artifactId>
+            <version>3.5.1</version>
+            <configuration>
+              <annotationProcessors>
+                cn.binarywang.wx.graal.GraalProcessor,lombok.launch.AnnotationProcessorHider$AnnotationProcessor,lombok.launch.AnnotationProcessorHider$ClaimingProcessor
+              </annotationProcessors>
+              <annotationProcessorPaths>
+                <path>
+                  <groupId>com.github.binarywang</groupId>
+                  <artifactId>weixin-graal</artifactId>
+                  <version>${project.version}</version>
+                </path>
+              </annotationProcessorPaths>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+
+    </profile>
+  </profiles>
+
 </project>

weixin-java-miniapp/pom.xml

@@ -80,12 +80,12 @@
       <groupId>org.projectlombok</groupId>
       <artifactId>lombok</artifactId>
     </dependency>
- 	<dependency>
-	  <groupId>com.github.jedis-lock</groupId>
-	  <artifactId>jedis-lock</artifactId>
-	  <version>1.0.0</version>
-	  <optional>true</optional>
-	</dependency>
+    <dependency>
+      <groupId>com.github.jedis-lock</groupId>
+      <artifactId>jedis-lock</artifactId>
+      <version>1.0.0</version>
+      <optional>true</optional>
+    </dependency>
   </dependencies>
 
   <build>
@@ -102,4 +102,35 @@
     </plugins>
   </build>
 
+  <profiles>
+    <profile>
+      <id>native-image</id>
+      <activation>
+        <activeByDefault>false</activeByDefault>
+      </activation>
+
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-compiler-plugin</artifactId>
+            <version>3.5.1</version>
+            <configuration>
+              <annotationProcessors>
+                cn.binarywang.wx.graal.GraalProcessor,lombok.launch.AnnotationProcessorHider$AnnotationProcessor,lombok.launch.AnnotationProcessorHider$ClaimingProcessor
+              </annotationProcessors>
+              <annotationProcessorPaths>
+                <path>
+                  <groupId>com.github.binarywang</groupId>
+                  <artifactId>weixin-graal</artifactId>
+                  <version>${project.version}</version>
+                </path>
+              </annotationProcessorPaths>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+  </profiles>
+
 </project>

weixin-java-mp/pom.xml

@@ -96,4 +96,35 @@
     </plugins>
   </build>
 
+  <profiles>
+    <profile>
+      <id>native-image</id>
+      <activation>
+        <activeByDefault>false</activeByDefault>
+      </activation>
+
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-compiler-plugin</artifactId>
+            <version>3.5.1</version>
+            <configuration>
+              <annotationProcessors>
+                cn.binarywang.wx.graal.GraalProcessor,lombok.launch.AnnotationProcessorHider$AnnotationProcessor,lombok.launch.AnnotationProcessorHider$ClaimingProcessor
+              </annotationProcessors>
+              <annotationProcessorPaths>
+                <path>
+                  <groupId>com.github.binarywang</groupId>
+                  <artifactId>weixin-graal</artifactId>
+                  <version>${project.version}</version>
+                </path>
+              </annotationProcessorPaths>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+  </profiles>
+
 </project>

weixin-java-open/pom.xml

@@ -107,5 +107,35 @@
     </plugins>
   </build>
 
+  <profiles>
+    <profile>
+      <id>native-image</id>
+      <activation>
+        <activeByDefault>false</activeByDefault>
+      </activation>
+
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-compiler-plugin</artifactId>
+            <version>3.5.1</version>
+            <configuration>
+              <annotationProcessors>
+                cn.binarywang.wx.graal.GraalProcessor,lombok.launch.AnnotationProcessorHider$AnnotationProcessor,lombok.launch.AnnotationProcessorHider$ClaimingProcessor
+              </annotationProcessors>
+              <annotationProcessorPaths>
+                <path>
+                  <groupId>com.github.binarywang</groupId>
+                  <artifactId>weixin-graal</artifactId>
+                  <version>${project.version}</version>
+                </path>
+              </annotationProcessorPaths>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+  </profiles>
 
 </project>

weixin-java-pay/pom.xml

@@ -72,4 +72,35 @@
     </dependency>
   </dependencies>
 
+  <profiles>
+    <profile>
+      <id>native-image</id>
+      <activation>
+        <activeByDefault>false</activeByDefault>
+      </activation>
+
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-compiler-plugin</artifactId>
+            <version>3.5.1</version>
+            <configuration>
+              <annotationProcessors>
+                cn.binarywang.wx.graal.GraalProcessor,lombok.launch.AnnotationProcessorHider$AnnotationProcessor,lombok.launch.AnnotationProcessorHider$ClaimingProcessor
+              </annotationProcessors>
+              <annotationProcessorPaths>
+                <path>
+                  <groupId>com.github.binarywang</groupId>
+                  <artifactId>weixin-graal</artifactId>
+                  <version>${project.version}</version>
+                </path>
+              </annotationProcessorPaths>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+  </profiles>
+
 </project>