generate jni header file by maven javah goal.

arthas-vmtool/pom.xml

@@ -87,6 +87,11 @@
                 <version>1.0-alpha-11</version>
                 <extensions>true</extensions>
                 <configuration>
+                    <javahIncludes>
+                        <javahInclude>
+                            <className>arthas.VmTool</className>
+                        </javahInclude>
+                    </javahIncludes>
                     <jdkIncludePath>${project.basedir}/src/main/native/head</jdkIncludePath>
                     <javahOS>${os_name}</javahOS>
                     <sources>
@@ -96,9 +101,6 @@
                                 <fileName>jni-library.cpp</fileName>
                             </fileNames>
                         </source>
-                        <source>
-                            <directory>src/main/native/include</directory>
-                        </source>
                     </sources>
 
                     <compilerProvider>generic-classic</compilerProvider>
@@ -127,6 +129,7 @@
                         <id>javah</id>
                         <phase>compile</phase>
                         <goals>
+                            <goal>javah</goal>
                             <goal>initialize</goal>
                             <goal>compile</goal>
                             <goal>link</goal>

arthas-vmtool/src/main/native/include/arthas_VmTool.h

@@ -1,69 +0,0 @@
-/* DO NOT EDIT THIS FILE - it is machine generated */
-#include <jni.h>
-/* Header for class arthas_VmTool */
-
-#ifndef _Included_arthas_VmTool
-#define _Included_arthas_VmTool
-#ifdef __cplusplus
-extern "C" {
-#endif
-/*
- * Class:     arthas_VmTool
- * Method:    check0
- * Signature: ()Ljava/lang/String;
- */
-JNIEXPORT jstring JNICALL Java_arthas_VmTool_check0
-  (JNIEnv *, jclass);
-
-/*
- * Class:     arthas_VmTool
- * Method:    forceGc0
- * Signature: ()V
- */
-JNIEXPORT void JNICALL Java_arthas_VmTool_forceGc0
-  (JNIEnv *, jclass);
-
-/*
- * Class:     arthas_VmTool
- * Method:    getInstances0
- * Signature: (Ljava/lang/Class;)[Ljava/lang/Object;
- */
-JNIEXPORT jobjectArray JNICALL Java_arthas_VmTool_getInstances0
-  (JNIEnv *, jclass, jclass);
-
-/*
- * Class:     arthas_VmTool
- * Method:    sumInstanceSize0
- * Signature: (Ljava/lang/Class;)J
- */
-JNIEXPORT jlong JNICALL Java_arthas_VmTool_sumInstanceSize0
-  (JNIEnv *, jclass, jclass);
-
-/*
- * Class:     arthas_VmTool
- * Method:    getInstanceSize0
- * Signature: (Ljava/lang/Object;)J
- */
-JNIEXPORT jlong JNICALL Java_arthas_VmTool_getInstanceSize0
-  (JNIEnv *, jclass, jobject);
-
-/*
- * Class:     arthas_VmTool
- * Method:    countInstances0
- * Signature: (Ljava/lang/Class;)J
- */
-JNIEXPORT jlong JNICALL Java_arthas_VmTool_countInstances0
-  (JNIEnv *, jclass, jclass);
-
-/*
- * Class:     arthas_VmTool
- * Method:    getAllLoadedClasses0
- * Signature: ()[Ljava/lang/Class;
- */
-JNIEXPORT jobjectArray JNICALL Java_arthas_VmTool_getAllLoadedClasses0
-  (JNIEnv *, jclass);
-
-#ifdef __cplusplus
-}
-#endif
-#endif

arthas-vmtool/src/main/native/src/jni-library.cpp

@@ -2,7 +2,7 @@
 #include <jni.h>
 #include <jni_md.h>
 #include <jvmti.h>
-#include "arthas_VmTool.h"
+#include "arthas_VmTool.h" // under target/native/javah/
 
 //缓存
 static jclass cachedClass = NULL;