使用 Java 8 和 JavaFX 测试 Apache Felix
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【中文标题】使用 Java 8 和 JavaFX 测试 Apache Felix【英文标题】：Test Apache Felix with Java 8 and JavaFX 【发布时间】：2013-05-21 03:28:16 【问题描述】：我正在研究 JavaFX 2.2 和 Java 8 的示例。我创建了这个简单的 Apache Felix Activator：
激活器：
import javafx.application.Platform;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.layout.BorderPane;
import javafx.stage.Stage;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
public class Activator implements BundleActivator
Stage stage;
@Override
public void start(BundleContext context) throws Exception
Platform.runLater(new Runnable()
@Override
public void run()
stage = new Stage();
BorderPane pane = new BorderPane();
Scene scene = new Scene(pane, 400, 200);
pane.setCenter(new Label("This is a JavaFX Scene in a Stage"));
stage.setScene(scene);
stage.show();
);
System.out.println("Main Module is loaded!");
@Override
public void stop(BundleContext context) throws Exception
Platform.runLater(new Runnable()
@Override
public void run()
stage.close();
);
System.out.println("Main Module is unloaded!");
POM
<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>
<groupId>DX-57</groupId>
<artifactId>DX-57_Main</artifactId>
<version>1.0-SNAPSHOT</version>
<packaging>bundle</packaging>
<name>DX-57_Main OSGi Bundle</name>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.osgi</groupId>
<artifactId>org.osgi.core</artifactId>
<version>5.0.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.felix</groupId>
<artifactId>maven-bundle-plugin</artifactId>
<version>2.3.7</version>
<extensions>true</extensions>
<configuration>
<instructions>
<Import-Package>*</Import-Package>
<Bundle-Activator>dx57.dx._main.Activator</Bundle-Activator>
<Export-Package>*</Export-Package>
</instructions>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
<profiles>
<profile>
<id>build-for-felix</id>
<dependencies>
<dependency>
<groupId>org.apache.felix</groupId>
<artifactId>org.apache.felix.main</artifactId>
<version>4.2.1</version>
<scope>provided</scope>
</dependency>
<!-- To include a shell:
<dependency>
<groupId>org.apache.felix</groupId>
<artifactId>org.apache.felix.gogo.shell</artifactId>
<version>0.10.0</version>
</dependency>
-->
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-antrun-plugin</artifactId>
<version>1.7</version>
<executions>
<execution>
<id>compile</id>
<phase>package</phase>
<goals>
<goal>run</goal>
</goals>
<configuration>
<target>
<pathconvert property="plugins.jars" pathsep="$path.separator">
<path refid="maven.runtime.classpath"/>
<map from="$project.build.directory$file.separatorclasses" to=""/>
</pathconvert>
<pathconvert pathsep=" " property="bundles">
<path path="$plugins.jars"/>
<mapper>
<chainedmapper>
<flattenmapper/>
<globmapper from="*" to="file:modules/*" casesensitive="no"/>
</chainedmapper>
</mapper>
</pathconvert>
<propertyfile file="$project.build.directory/config.properties">
<entry key="felix.auto.start" value="$bundles file:modules/$project.build.finalName.jar"/>
<entry key="org.osgi.framework.bootdelegation" value="*"/>
</propertyfile>
<copy file="$maven.dependency.org.apache.felix.org.apache.felix.main.jar.path" tofile="$project.build.directory/felix.jar"/>
</target>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.4</version>
<executions>
<execution>
<id>create-executable-jar</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
<configuration>
<descriptors>
<descriptor>$basedir/src/main/assembly/felix.xml</descriptor>
</descriptors>
<finalName>$project.build.finalName</finalName>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
<profile>
<id>run-on-felix</id>
<dependencies>
<dependency>
<groupId>org.apache.felix</groupId>
<artifactId>org.apache.felix.main</artifactId>
<version>4.2.1</version>
<scope>provided</scope>
</dependency>
<!-- org.apache.felix:org.apache.felix.gogo.shell:0.6.1 useless from Maven since stdin is swallowed -->
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-antrun-plugin</artifactId>
<version>1.7</version>
<configuration>
<target>
<property name="vm.args" value=""/>
<pathconvert property="plugins.jars" pathsep="$path.separator">
<path refid="maven.runtime.classpath"/>
<map from="$project.build.directory$file.separatorclasses" to=""/>
</pathconvert>
<makeurl property="urls" separator=" ">
<path path="$plugins.jars"/>
<path location="$project.build.directory/$project.build.finalName.jar"/>
</makeurl>
<propertyfile file="$project.build.directory/run.properties">
<entry key="felix.auto.start" value="$urls"/>
<entry key="felix.auto.deploy.action" value="uninstall,install,update,start"/>
<entry key="org.osgi.framework.storage" value="$project.build.directory$file.separatorfelix-cache"/>
<entry key="org.osgi.framework.bootdelegation" value="*"/>
</propertyfile>
<makeurl property="run.properties.url" file="$project.build.directory/run.properties"/>
<java fork="true" jar="$maven.dependency.org.apache.felix.org.apache.felix.main.jar.path">
<sysproperty key="felix.config.properties" value="$run.properties.url"/>
<jvmarg line="$vm.args"/>
</java>
</target>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
</project>
错误：
[rcbandit@Laptop felix-framework_JavaFX]$ /opt/jdk1.8.0/bin/java -jar bin/felix.jar
ERROR: Bundle DX-57.Main [1] Error starting file:/home/rcbandit/Desktop/test/felix-framework_JavaFX/bundle/DX-57_Main-1.0-SNAPSHOT.jar (org.osgi.framework.BundleException: Activator start error in bundle DX-57.Main [1].)
java.lang.ClassCastException: dx57.dx._main.Activator cannot be cast to org.osgi.framework.BundleActivator
at org.apache.felix.framework.Felix.createBundleActivator(Felix.java:4336)
at org.apache.felix.framework.Felix.activateBundle(Felix.java:2141)
at org.apache.felix.framework.Felix.startBundle(Felix.java:2064)
at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1291)
at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:304)
at java.lang.Thread.run(Thread.java:724)
____________________________
Welcome to Apache Felix Gogo
g!
我在 config.properties 文件中添加了外部包：
org.osgi.framework.system.packages.extra=javafx.application, \
com.sun.browser.plugin, \
com.sun.deploy.uitoolkit.impl.fx, \
com.sun.deploy.uitoolkit.impl.fx.ui, \
com.sun.deploy.uitoolkit.impl.fx.ui.resources, \
com.sun.deploy.uitoolkit.impl.fx.ui.resources.image, \
com.sun.glass.events, \
com.sun.glass.ui, \
com.sun.glass.ui.delegate, \
com.sun.glass.ui.gtk, \
com.sun.glass.ui.mac, \
com.sun.glass.ui.win, \
com.sun.glass.ui.x11, \
com.sun.glass.utils, \
com.sun.javafx, \
com.sun.javafx.animation, \
com.sun.javafx.animation.transition, \
com.sun.javafx.applet, \
com.sun.javafx.application, \
com.sun.javafx.beans, \
com.sun.javafx.beans.annotations, \
com.sun.javafx.beans.event, \
com.sun.javafx.binding, \
com.sun.javafx.charts, \
com.sun.javafx.collections, \
com.sun.javafx.collections.annotations, \
com.sun.javafx.collections.transformation, \
com.sun.javafx.css, \
com.sun.javafx.css.converters, \
com.sun.javafx.css.parser, \
com.sun.javafx.cursor, \
com.sun.javafx.effect, \
com.sun.javafx.embed, \
com.sun.javafx.event, \
com.sun.javafx.font, \
com.sun.javafx.fxml, \
com.sun.javafx.fxml.builder, \
com.sun.javafx.fxml.expression, \
com.sun.javafx.geom, \
com.sun.javafx.geom.transform, \
com.sun.javafx.iio, \
com.sun.javafx.iio.bmp, \
com.sun.javafx.iio.common, \
com.sun.javafx.iio.gif, \
com.sun.javafx.iio.jpeg, \
com.sun.javafx.iio.png, \
com.sun.javafx.image, \
com.sun.javafx.image.impl, \
com.sun.javafx.jmx, \
com.sun.javafx.logging, \
com.sun.javafx.menu, \
com.sun.javafx.perf, \
com.sun.javafx.property, \
com.sun.javafx.property.adapter, \
com.sun.javafx.robot, \
com.sun.javafx.robot.impl, \
com.sun.javafx.runtime, \
com.sun.javafx.runtime.async, \
com.sun.javafx.runtime.eula, \
com.sun.javafx.scene, \
com.sun.javafx.scene.control, \
com.sun.javafx.scene.control.behavior, \
com.sun.javafx.scene.control.skin, \
com.sun.javafx.scene.control.skin.caspian, \
com.sun.javafx.scene.control.skin.resources, \
com.sun.javafx.scene.input, \
com.sun.javafx.scene.layout.region, \
com.sun.javafx.scene.paint, \
com.sun.javafx.scene.shape, \
com.sun.javafx.scene.text, \
com.sun.javafx.scene.transform, \
com.sun.javafx.scene.traversal, \
com.sun.javafx.scene.web, \
com.sun.javafx.scene.web.behavior, \
com.sun.javafx.scene.web.skin, \
com.sun.javafx.sg, \
com.sun.javafx.sg.prism, \
com.sun.javafx.stage, \
com.sun.javafx.tk, \
com.sun.javafx.tk.desktop, \
com.sun.javafx.tk.quantum, \
com.sun.javafx.util, \
com.sun.media.jfxmedia, \
com.sun.media.jfxmedia.control, \
com.sun.media.jfxmedia.effects, \
com.sun.media.jfxmedia.events, \
com.sun.media.jfxmedia.locator, \
com.sun.media.jfxmedia.logging, \
com.sun.media.jfxmedia.track, \
com.sun.media.jfxmediaimpl, \
com.sun.media.jfxmediaimpl.platform, \
com.sun.media.jfxmediaimpl.platform.gstreamer, \
com.sun.media.jfxmediaimpl.platform.java, \
com.sun.media.jfxmediaimpl.platform.osx, \
com.sun.openpisces, \
com.sun.prism, \
com.sun.prism.camera, \
com.sun.prism.d3d, \
com.sun.prism.d3d.hlsl, \
com.sun.prism.image, \
com.sun.prism.impl, \
com.sun.prism.impl.packrect, \
com.sun.prism.impl.paint, \
com.sun.prism.impl.ps, \
com.sun.prism.impl.shape, \
com.sun.prism.j2d, \
com.sun.prism.j2d.paint, \
com.sun.prism.paint, \
com.sun.prism.ps, \
com.sun.prism.render, \
com.sun.prism.shader, \
com.sun.prism.shape, \
com.sun.prism.tkal, \
com.sun.prism.util.tess, \
com.sun.prism.util.tess.impl.tess, \
com.sun.scenario, \
com.sun.scenario.animation, \
com.sun.scenario.animation.shared, \
com.sun.scenario.effect, \
com.sun.scenario.effect.impl, \
com.sun.scenario.effect.impl.hw, \
com.sun.scenario.effect.impl.hw.d3d, \
com.sun.scenario.effect.impl.hw.d3d.hlsl, \
com.sun.scenario.effect.impl.prism, \
com.sun.scenario.effect.impl.prism.ps, \
com.sun.scenario.effect.impl.prism.sw, \
com.sun.scenario.effect.impl.state, \
com.sun.scenario.effect.impl.sw, \
com.sun.scenario.effect.impl.sw.java, \
com.sun.scenario.effect.impl.sw.sse, \
com.sun.scenario.effect.light, \
com.sun.t2k, \
com.sun.webpane.perf, \
com.sun.webpane.platform, \
com.sun.webpane.platform.event, \
com.sun.webpane.platform.graphics, \
com.sun.webpane.sg, \
com.sun.webpane.sg.prism, \
com.sun.webpane.sg.prism.resources, \
com.sun.webpane.sg.prism.theme, \
com.sun.webpane.sg.theme, \
com.sun.webpane.webkit, \
com.sun.webpane.webkit.dom, \
com.sun.webpane.webkit.network, \
com.sun.webpane.webkit.network.about, \
com.sun.webpane.webkit.network.data, \
com.sun.webpane.webkit.unicode, \
javafx.animation, \
javafx.beans, \
javafx.beans.binding, \
javafx.beans.property, \
javafx.beans.property.adapter, \
javafx.beans.value, \
javafx.collections, \
javafx.concurrent, \
javafx.embed.swing, \
javafx.embed.swt, \
javafx.event, \
javafx.fxml, \
javafx.geometry, \
javafx.scene, \
javafx.scene.canvas, \
javafx.scene.chart, \
javafx.scene.control, \
javafx.scene.control.cell, \
javafx.scene.effect, \
javafx.scene.image, \
javafx.scene.input, \
javafx.scene.layout, \
javafx.scene.media, \
javafx.scene.paint, \
javafx.scene.shape, \
javafx.scene.text, \
javafx.scene.transform, \
javafx.scene.web, \
javafx.stage, \
javafx.util, \
javafx.util.converter, \
org.osgi.framework.wiring, \
netscape.javascript
知道如何解决这个问题吗？
更新
删除<Export-Package>*</Export-Package> 后出现此错误：
[rcbandit@Laptop felix-framework_JavaFX]$ /opt/jdk1.8.0/bin/java -jar bin/felix.jar
ERROR: Bundle DX-57.Main [1] Error starting file:/home/rcbandit/Desktop/test/felix-framework_JavaFX/bundle/DX-57_Main-1.0-SNAPSHOT.jar (org.osgi.framework.BundleException: Activator start error in bundle DX-57.Main [1].)
java.lang.IllegalStateException: Toolkit not initialized
at com.sun.javafx.application.PlatformImpl.runLater(PlatformImpl.java:201)
at com.sun.javafx.application.PlatformImpl.runLater(PlatformImpl.java:196)
at javafx.application.Platform.runLater(Platform.java:52)
at dx57.dx._main.Activator.start(Activator.java:20)
at org.apache.felix.framework.util.SecureAction.startActivator(SecureAction.java:645)
at org.apache.felix.framework.Felix.activateBundle(Felix.java:2146)
at org.apache.felix.framework.Felix.startBundle(Felix.java:2064)
at org.apache.felix.framework.Felix.setActiveStartLevel(Felix.java:1291)
at org.apache.felix.framework.FrameworkStartLevelImpl.run(FrameworkStartLevelImpl.java:304)
at java.lang.Thread.run(Thread.java:724)
____________________________
Welcome to Apache Felix Gogo
g!
【问题讨论】：
“使用 JavaFX 2.2 和 Java 8”，我猜你的意思是“使用 JavaFX 8 和 Java SE 8”？ 【参考方案1】：JavaFX 应用程序依赖于来自 JavaFX API 的包，例如 javafx.application 和其他几个。因为看起来你已经使用 Maven Bundle Plugin 构建了你的包，所以你的包已经声明了这些依赖项。这是一件好事。
在 Java 8 中，javafx.* 包由基本 JRE 提供。然而，OSGi 不会自动从 JRE 导出 每个 包，这仅仅是因为所有 JRE 都有一堆普通应用程序代码不应该访问的非标准包（例如 com.sun.* 等）。因此，OSGi 仅提供由相关 JCP 规范为您正在使用的 Java 版本定义的包。比如javax.swing、org.w3c.dom等包。
由于 JavaFX 不是标准，因此没有针对 JavaFX 的 JCP 规范，并且 OSGi 不会导出 javafx.* 包。但是，您可以通过在启动 OSGi 时设置以下配置属性来配置 OSGi 为您执行此操作：
org.osgi.framework.system.packages.extra=javafx.application,...
NB 我已经展示了如何将javafx.application 包添加到您的运行时。您可能需要添加更多，即来自 JavaFX API 的所有包。我对 JavaFX 不够熟悉，无法列出这些，但它们应该很容易找到。
【讨论】：
我查看了您的更新。这是没有意义的。您正在尝试导入名为“osgi.wiring.package”的包？？没有这样的包。您是否明确添加了此依赖项？请提供有关您所做操作的更多信息。 @PeterPenzov 你在看这些回复吗？？您添加了无效的依赖项。请显示捆绑包的 pom。 @PeterPenzov 看起来你贴错了。捆绑包DX-57.testr 是失败的包。
@PeterPenzov 我认为这不是一个好主意......现在答案与问题无关。那好吧。无论如何，最新的问题是你说过<Export-Package>*</Export-Package>。请删除该行。
删除<Export-Package>*</Export-Package>后再次更新帖子【参考方案2】：
我最近发布了Drombler FX 的第一个早期访问版本，这是一个基于 OSGi 和 Maven（POM 优先；默认使用 Apache Felix）的 JavaFX 模块化富客户端平台。
您可以在此处阅读更多信息：http://puces-blog.blogspot.ch/2012/12/drombler-fx-building-modular-javafx.html
入门：http://wiki.drombler.org/GettingStarted
我最近尝试使用 Java SE 8 的预发布版本运行它，并且到目前为止它工作正常，虽然我还没有指定 Java SE 8 的系统包，所以我不确定是否一切正常/如果您可以访问所有内容。
【讨论】：
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