使用 OSGi 和 Apache Felix iPOJO JDK 11
Using OSGi and Apache Felix iPOJO with JDK 11
我有一个围绕 OSGi 和 iPOJO 构建的项目，我正在尝试确定它是否仍适用于 JDK 11。它目前正在使用 JDK 8。它看起来不太好充满希望，因为最新版本的 iPOJO (1.12.1) 于 2014 年发布。更新目标和 maven 编译器版本后，我 运行 进入以下内容：
[ERROR] Failed to execute goal org.apache.felix:maven-ipojo-plugin:1.12.1:ipojo-bundle (default) on project redacted: Execution default of goal org.apache.felix:maven-ipojo-plugin:1.12.1:ipojo-bundle failed. IllegalArgumentException -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.felix:maven-ipojo-plugin:1.12.1:ipojo-bundle (default) on project redacted: Execution default of goal org.apache.felix:maven-ipojo-plugin:1.12.1:ipojo-bundle failed.
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default of goal org.apache.felix:maven-ipojo-plugin:1.12.1:ipojo-bundle failed.
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:145)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
... 20 more
Caused by: java.lang.IllegalArgumentException
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.apache.felix.ipojo.manipulator.metadata.annotation.model.parser.AnnotationParser.read(AnnotationParser.java:32)
at org.apache.felix.ipojo.manipulator.metadata.annotation.registry.MetaAnnotationBindingRegistry.createBindings(MetaAnnotationBindingRegistry.java:94)
at org.apache.felix.ipojo.manipulator.metadata.annotation.registry.CompletableBindingRegistry.getBindings(CompletableBindingRegistry.java:45)
at org.apache.felix.ipojo.manipulator.metadata.annotation.registry.CompletableBindingRegistry.getBindings(CompletableBindingRegistry.java:43)
at org.apache.felix.ipojo.manipulator.metadata.annotation.registry.CompletableBindingRegistry.getBindings(CompletableBindingRegistry.java:43)
at org.apache.felix.ipojo.manipulator.metadata.annotation.registry.Selection.list(Selection.java:129)
at org.apache.felix.ipojo.manipulator.metadata.annotation.registry.Selection.get(Selection.java:98)
at org.apache.felix.ipojo.manipulator.metadata.annotation.MethodMetadataCollector.visitAnnotation(MethodMetadataCollector.java:69)
at org.objectweb.asm.ClassReader.b(Unknown Source)
at org.objectweb.asm.ClassReader.accept(Unknown Source)
at org.objectweb.asm.ClassReader.accept(Unknown Source)
at org.apache.felix.ipojo.manipulator.metadata.AnnotationMetadataProvider.computeAnnotations(AnnotationMetadataProvider.java:111)
at org.apache.felix.ipojo.manipulator.metadata.AnnotationMetadataProvider.access0(AnnotationMetadataProvider.java:44)
at org.apache.felix.ipojo.manipulator.metadata.AnnotationMetadataProvider.visit(AnnotationMetadataProvider.java:90)
at org.apache.felix.ipojo.manipulator.store.JarFileResourceStore.accept(JarFileResourceStore.java:161)
at org.apache.felix.ipojo.manipulator.metadata.AnnotationMetadataProvider.getMetadatas(AnnotationMetadataProvider.java:75)
at org.apache.felix.ipojo.manipulator.metadata.CompositeMetadataProvider.getMetadatas(CompositeMetadataProvider.java:53)
at org.apache.felix.ipojo.manipulator.Pojoization.pojoization(Pojoization.java:360)
at org.apache.felix.ipojo.manipulator.Pojoization.pojoization(Pojoization.java:243)
at org.apache.felix.ipojo.plugin.ManipulatorMojo.execute(ManipulatorMojo.java:265)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
... 21 more
粗略看来，maven-ipojo-plugin 的 asm 依赖似乎在 JDK 11 上有问题，这是有道理的，因为 iPOJO 对 asm 5.0.4 有传递依赖， JDK 直到 asm 7.0 才添加对 11 的支持。我试图排除传递依赖并添加 asm 7.0 作为依赖，但我仍然得到同样的错误。
感谢您的关注，如果有任何其他尝试或见解，我将不胜感激。
在 Maven 构建期间来自 ASM 的 IllegalArgumentException 表示插件正在使用的 ASM 库版本对于当前 Java 字节码来说太旧了。 Java 11 字节码需要 ASM 7（如您所述），几周前才以稳定版本发布。
从 JDK 9 迁移到 10 时，可以通过明确声明 ASM 6.2 为依赖项来解决此问题，例如maven-shade-plugin:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.1.1</version>
<dependencies>
<!-- TODO: Remove for shade-plugin 3.1.2 - https://issues.apache.org/jira/browse/MSHADE-289 -->
<dependency>
<groupId>org.ow2.asm</groupId>
<artifactId>asm</artifactId>
<version>6.2</version>
</dependency>
</dependencies>
</plugin>
此技巧不适用于 JDK 11，它需要更新插件本身，例如maven-shade-plugin 和 maven-plugin-plugin。正如您的努力所示，maven-ipojo-plugin 也是如此。如果插件没有维护，您可能应该考虑 ipojo-plugin 的替代方案，以便迁移到 Java 11.
您可以尝试将 maven-compiler-plugin 的 target 版本设置为 1.8，这应该会导致 class 文件与 ipojo-plugin 兼容。但是你可能还必须将 source 版本设置为 1.8，并且将无法使用任何 Java 9+ 语言功能。
我有一个围绕 OSGi 和 iPOJO 构建的项目，我正在尝试确定它是否仍适用于 JDK 11。它目前正在使用 JDK 8。它看起来不太好充满希望，因为最新版本的 iPOJO (1.12.1) 于 2014 年发布。更新目标和 maven 编译器版本后，我 运行 进入以下内容：
[ERROR] Failed to execute goal org.apache.felix:maven-ipojo-plugin:1.12.1:ipojo-bundle (default) on project redacted: Execution default of goal org.apache.felix:maven-ipojo-plugin:1.12.1:ipojo-bundle failed. IllegalArgumentException -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.felix:maven-ipojo-plugin:1.12.1:ipojo-bundle (default) on project redacted: Execution default of goal org.apache.felix:maven-ipojo-plugin:1.12.1:ipojo-bundle failed.
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:212)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:199)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:566)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
Caused by: org.apache.maven.plugin.PluginExecutionException: Execution default of goal org.apache.felix:maven-ipojo-plugin:1.12.1:ipojo-bundle failed.
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:145)
at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207)
... 20 more
Caused by: java.lang.IllegalArgumentException
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at org.apache.felix.ipojo.manipulator.metadata.annotation.model.parser.AnnotationParser.read(AnnotationParser.java:32)
at org.apache.felix.ipojo.manipulator.metadata.annotation.registry.MetaAnnotationBindingRegistry.createBindings(MetaAnnotationBindingRegistry.java:94)
at org.apache.felix.ipojo.manipulator.metadata.annotation.registry.CompletableBindingRegistry.getBindings(CompletableBindingRegistry.java:45)
at org.apache.felix.ipojo.manipulator.metadata.annotation.registry.CompletableBindingRegistry.getBindings(CompletableBindingRegistry.java:43)
at org.apache.felix.ipojo.manipulator.metadata.annotation.registry.CompletableBindingRegistry.getBindings(CompletableBindingRegistry.java:43)
at org.apache.felix.ipojo.manipulator.metadata.annotation.registry.Selection.list(Selection.java:129)
at org.apache.felix.ipojo.manipulator.metadata.annotation.registry.Selection.get(Selection.java:98)
at org.apache.felix.ipojo.manipulator.metadata.annotation.MethodMetadataCollector.visitAnnotation(MethodMetadataCollector.java:69)
at org.objectweb.asm.ClassReader.b(Unknown Source)
at org.objectweb.asm.ClassReader.accept(Unknown Source)
at org.objectweb.asm.ClassReader.accept(Unknown Source)
at org.apache.felix.ipojo.manipulator.metadata.AnnotationMetadataProvider.computeAnnotations(AnnotationMetadataProvider.java:111)
at org.apache.felix.ipojo.manipulator.metadata.AnnotationMetadataProvider.access0(AnnotationMetadataProvider.java:44)
at org.apache.felix.ipojo.manipulator.metadata.AnnotationMetadataProvider.visit(AnnotationMetadataProvider.java:90)
at org.apache.felix.ipojo.manipulator.store.JarFileResourceStore.accept(JarFileResourceStore.java:161)
at org.apache.felix.ipojo.manipulator.metadata.AnnotationMetadataProvider.getMetadatas(AnnotationMetadataProvider.java:75)
at org.apache.felix.ipojo.manipulator.metadata.CompositeMetadataProvider.getMetadatas(CompositeMetadataProvider.java:53)
at org.apache.felix.ipojo.manipulator.Pojoization.pojoization(Pojoization.java:360)
at org.apache.felix.ipojo.manipulator.Pojoization.pojoization(Pojoization.java:243)
at org.apache.felix.ipojo.plugin.ManipulatorMojo.execute(ManipulatorMojo.java:265)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134)
... 21 more
粗略看来，maven-ipojo-plugin 的 asm 依赖似乎在 JDK 11 上有问题，这是有道理的，因为 iPOJO 对 asm 5.0.4 有传递依赖， JDK 直到 asm 7.0 才添加对 11 的支持。我试图排除传递依赖并添加 asm 7.0 作为依赖，但我仍然得到同样的错误。
感谢您的关注，如果有任何其他尝试或见解，我将不胜感激。
在 Maven 构建期间来自 ASM 的 IllegalArgumentException 表示插件正在使用的 ASM 库版本对于当前 Java 字节码来说太旧了。 Java 11 字节码需要 ASM 7（如您所述），几周前才以稳定版本发布。
从 JDK 9 迁移到 10 时，可以通过明确声明 ASM 6.2 为依赖项来解决此问题，例如maven-shade-plugin:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>3.1.1</version>
<dependencies>
<!-- TODO: Remove for shade-plugin 3.1.2 - https://issues.apache.org/jira/browse/MSHADE-289 -->
<dependency>
<groupId>org.ow2.asm</groupId>
<artifactId>asm</artifactId>
<version>6.2</version>
</dependency>
</dependencies>
</plugin>
此技巧不适用于 JDK 11，它需要更新插件本身，例如maven-shade-plugin 和 maven-plugin-plugin。正如您的努力所示，maven-ipojo-plugin 也是如此。如果插件没有维护，您可能应该考虑 ipojo-plugin 的替代方案，以便迁移到 Java 11.
您可以尝试将 maven-compiler-plugin 的 target 版本设置为 1.8，这应该会导致 class 文件与 ipojo-plugin 兼容。但是你可能还必须将 source 版本设置为 1.8，并且将无法使用任何 Java 9+ 语言功能。