GraalVM(云原生时代的Java)和IoT在边缘侧落地与实践

<profile>
            <id>native</id>
            <activation>
                <property>
                    <name>native</name>
                </property>
            </activation>
            <build>
                <plugins>
                    <plugin>
                        <groupId>org.graalvm.buildtools</groupId>
                        <artifactId>native-maven-plugin</artifactId>
                        <version>${graalvm-buildtools.version}</version>
                        <extensions>true</extensions>
                        <executions>
                            <execution>
                                <id>build-native</id>
                                <goals>
                                    <goal>compile-no-fork</goal>
                                </goals>
                                <phase>package</phase>
                            </execution>
                        </executions>
                        <configuration>
                            <skip>false</skip>
                            <imageName>${appName}</imageName>
                            <requiredVersion>${graalvm.version}</requiredVersion>
                            <mainClass>${mainClass}</mainClass>
                            <buildArgs>
                                <arg>--no-fallback</arg>
                                <arg>-Dfile.encoding=UTF-8</arg>
                                <arg>-H:-CheckToolchain</arg>
                                <arg>-H:+ReportExceptionStackTraces</arg>
                            </buildArgs>
                        </configuration>
                    </plugin>
                </plugins>
            </build>
        </profile>

Args = -H:ReflectionConfigurationResources=${.}/reflection-config.json \
       -H:IncludeLocales=zh,en,de,fr \
       --initialize-at-run-time=io.netty.buffer.AbstractReferenceCountedByteBuf \
       --initialize-at-run-time=io.netty.buffer.ByteBufAllocator \
       --initialize-at-run-time=io.netty.buffer.ByteBufUtil \
       --initialize-at-run-time=io.netty.buffer.ByteBufUtil$HexUtil \
       --initialize-at-run-time=io.netty.buffer.PooledByteBufAllocator \
       --initialize-at-run-time=io.netty.buffer.UnpooledHeapByteBuf \
       --initialize-at-run-time=io.netty.buffer.UnreleasableByteBuf \
       --initialize-at-run-time=io.netty.util.AbstractReferenceCounted \
       --initialize-at-run-time=io.netty.util.internal.ThreadLocalRandom \
       --initialize-at-run-time=io.netty.util.concurrent.GlobalEventExecutor \
       --initialize-at-run-time=io.netty.util.concurrent.ImmediateEventExecutor \
       --initialize-at-run-time=io.netty.util.concurrent.ScheduledFutureTask \
       -Dio.netty.noUnsafe=true \
       -Dio.netty.leakDetection.level=DISABLED

[
  {
    "name": "io.netty.channel.socket.nio.NioSocketChannel",
    "methods": [
      { "name": "<init>", "parameterTypes": [] }
    ]
  },
......
{
    "name" : "iot.technology.client.toolkit.nb.service.mobile.domain.action.data.MobCachedCommandResponse",
    "allDeclaredMethods" : true,
    "allPublicMethods" : true,
    "allDeclaredClasses" : true,
    "allPublicClasses" : true,
    "allDeclaredConstructors" : true,
    "allPublicConstructors" : true
  }
]

mvn clean package -Pnative

[INFO] --- native-maven-plugin:0.9.17:compile-no-fork (build-native) @ toolkit-app ---
[INFO] Found GraalVM installation from JAVA_HOME variable.
......
========================================================================================================================
GraalVM Native Image: Generating 'toolkit' (executable)...
========================================================================================================================
[1/7] Initializing...                                                                                    (9.2s @ 0.20GB)
 Version info: 'GraalVM 22.2.0 Java 17 CE'
 Java version info: '17.0.4+8-jvmci-22.2-b06'
 C compiler: cc (null, null, 0.0.0)
 Garbage collector: Serial GC
 1 user-specific feature(s)
 - org.graalvm.home.HomeFinderFeature: Finds GraalVM paths and its version number
[2/7] Performing analysis...  [*********]                                                               (45.3s @ 2.77GB)
  11,123 (90.04%) of 12,354 classes reachable
  18,642 (59.17%) of 31,506 fields reachable
  57,906 (57.83%) of 100,137 methods reachable
     524 classes,   194 fields, and 2,046 methods registered for reflection
      79 classes,   196 fields, and   136 methods registered for JNI access
       5 native libraries: -framework CoreServices, -framework Foundation, dl, pthread, z
[3/7] Building universe...                                                                               (4.7s @ 1.45GB)
[4/7] Parsing methods...      [**]                                                                       (3.6s @ 1.88GB)
[5/7] Inlining methods...     [***]                                                                      (2.2s @ 3.94GB)
[6/7] Compiling methods...    [*****]                                                                   (31.6s @ 4.19GB)
[7/7] Creating image...                                                                                  (5.6s @ 2.77GB)
  25.79MB (49.67%) for code area:    37,581 compilation units
  25.84MB (49.78%) for image heap:  290,531 objects and 175 resources
 292.13KB ( 0.55%) for other data
  51.92MB in total
------------------------------------------------------------------------------------------------------------------------
Top 10 packages in code area:                               Top 10 object types in image heap:
   1.65MB sun.security.ssl                                     5.53MB byte[] for code metadata
1021.89KB java.util                                            2.78MB java.lang.String
 919.87KB picocli                                              2.73MB java.lang.Class
 731.85KB com.sun.crypto.provider                              2.62MB byte[] for general heap data
 565.20KB java.lang.invoke                                     2.42MB byte[] for java.lang.String
 518.23KB java.lang                                            1.46MB byte[] for embedded resources
 504.26KB org.jline.reader.impl                              955.88KB com.oracle.svm.core.hub.DynamicHubCompanion
 476.05KB c.s.org.apache.xerces.internal.impl.xs.traversers  663.69KB byte[] for reflection metadata
 458.58KB sun.security.x509                                  623.30KB java.util.HashMap$Node
 438.98KB com.sun.org.apache.xerces.internal.impl            580.77KB java.lang.String[]
  18.36MB for 389 more packages                                4.51MB for 2478 more object types
------------------------------------------------------------------------------------------------------------------------
                        6.3s (5.7% of total time) in 32 GCs | Peak RSS: 5.93GB | CPU load: 5.50
------------------------------------------------------------------------------------------------------------------------
Produced artifacts:
......

public static void main(String[] args) {
        long begin = System.currentTimeMillis();
        ......
        try {
            ......
            long end = System.currentTimeMillis();
            long runTime = end - begin;
            System.out.println("startUp cost runTime: " + runTime);
            ......
        } finally {
            ......
        }
    }

➜  target git:(develop-v0.6.6) ✗ ./toolkit
......
startUp cost runTime: 11