Java 7 使用 Web Start 破坏 OS X 上的 SWT 应用程序 [英] Java 7 breaks SWT app on OS X using Web Start

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问题描述

我们有一个通过 webstart 启动的应用程序，它使用了 SWT 库.

We have an application that launches via webstart that uses the SWT library.

众所周知，osx 需要在主线程中运行 swt 库，所以我们在 jnlp 中有这个:

It's well known that osx requires the swt library to run in the main thread, so we have this in our jnlp:

<resources os="Mac"> 
    <j2se version="1.6+" java-vm-args="-XstartOnFirstThread"/>
    <jar href="swt-mac64.jar"/>
</resources>

自从我们升级到 Java 7 (1.7.0_10) 后，webstart 似乎没有将-XstartOnFirstThread"传递给它启动的 java 进程.

Since we've upgraded to Java 7 (1.7.0_10), it seems that webstart doesn't pass the "-XstartOnFirstThread" to the java process that it starts.

我可以从 'ps' 看到 java 进程没有获得-XstartOnFirstThread"选项.

I can see from 'ps' that the java process isn't getting the "-XstartOnFirstThread" option.

有谁知道如何让 webstart 恢复到以前的行为?

Does anyone know how to get webstart to go back to its previous behaviour?

问候，戈德.

这是 webstart 日志显示的内容:

This is what the webstart log shows:

Java Web Start 10.10.2.18
Using JRE version 1.7.0_10-b18 Java HotSpot(TM) 64-Bit Server VM
User home directory = /Users/shier
----------------------------------------------------
c:   clear console window
f:   finalize objects on finalization queue
g:   garbage collect
h:   display this help message
m:   print memory usage
o:   trigger logging
p:   reload proxy configuration
q:   hide console
r:   reload policy configuration
s:   dump system and deployment properties
t:   dump thread list
v:   dump thread stack
0-5: set trace level to <n>
----------------------------------------------------
    Match: beginTraversal
Match: digest selected JREDesc: JREDesc[version 1.6+, heap=-1--1, args=-XstartOnFirstThread, href=null, sel=false, null, null], JREInfo: JREInfo for index 0:
    platform is: 1.7
    product is: 1.7.0_10
    location is: http://java.sun.com/products/autodl/j2se
    path is: /Library/Internet Plug-ins/JavaAppletPlugin.plugin/Contents/Home/bin/java
    args is: null
    native platform is: Mac OS X, x86_64 [ x86_64, 64bit ]
    JavaFX runtime is: JavaFX 2.2.4 found at /Library/Internet Plug-ins/JavaAppletPlugin.plugin/Contents/Home/
    enabled is: true
    registered is: true
    system is: true

    Match: ignoring maxHeap: -1
    Match: ignoring InitHeap: -1
    Match: digesting vmargs: -XstartOnFirstThread
    Match: digested vmargs: [JVMParameters: isSecure: false, args: -XstartOnFirstThread]
    Match: JVM args after accumulation: [JVMParameters: isSecure: false, args: -XstartOnFirstThread]
    Match: digest LaunchDesc: http://htxuat.example.com/broker/broker-XX.jnlp
    Match: digest properties: []
    Match: JVM args: [JVMParameters: isSecure: false, args: -XstartOnFirstThread]
    Match: endTraversal ..
    Match: JVM args final: -XstartOnFirstThread
    Match: Running JREInfo Version    match: 1.7.0.10 == 1.7.0.10
     Match: Running JVM args match the secure subset: have:<"-Djnlp.application.href=\"http://htxuat.example.com/broker/broker-XX.jnlp \"">  satisfy want:<-XstartOnFirstThread>
Dec 13, 2012 10:19:49 AM com.example.log.JavaUtilLogger infoImpl
INFO: Available host [tcp:htxuat.example.com:49200]
Dec 13, 2012 10:19:49 AM com.example.log.JavaUtilLogger infoImpl
INFO: Available host [ssl:htxuat.example.com:49301]
Dec 13, 2012 10:19:49 AM com.example.log.JavaUtilLogger infoImpl
INFO: Will try the first address [tcp:htxuat.example.com:49200]
Dec 13, 2012 10:19:49 AM com.example.log.JavaUtilLogger infoImpl
INFO: Using host [tcp:htxuat.example.com:49200]
Dec 13, 2012 10:19:49 AM com.example.log.JavaUtilLogger infoImpl
INFO: Don't forget to change back the logging, this is only temporary
Dec 13, 2012 10:19:49 AM com.example.log.JavaUtilLogger infoImpl
INFO: Using library /Users/shier/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:.
Dec 13, 2012 10:19:49 AM com.example.log.JavaUtilLogger infoImpl
INFO: Registering  [com.example.client.ClientController]
JNLPClassLoader: Finding library libswt-cocoa-3738.dylib
JNLPClassLoader: Finding library libswt-cocoa.dylib
JNLPClassLoader: Finding library libswt-pi-cocoa-3738.dylib
JNLPClassLoader: Finding library libswt-pi-cocoa.dylib
***WARNING: Display must be created on main thread due to Cocoa restrictions.
Dec 13, 2012 10:19:50 AM com.example.log.JavaUtilLogger errorImpl
SEVERE: Problem
org.eclipse.swt.SWTException: Invalid thread access
    at org.eclipse.swt.SWT.error(SWT.java:4282)
    at org.eclipse.swt.SWT.error(SWT.java:4197)
    at org.eclipse.swt.SWT.error(SWT.java:4168)
    at org.eclipse.swt.widgets.Display.error(Display.java:1065)
    at org.eclipse.swt.widgets.Display.createDisplay(Display.java:822)
    at org.eclipse.swt.widgets.Display.create(Display.java:805)
    at org.eclipse.swt.graphics.Device.<init>(Device.java:130)
    at org.eclipse.swt.widgets.Display.<init>(Display.java:696)
    at org.eclipse.swt.widgets.Display.<init>(Display.java:687)
    at org.eclipse.swt.widgets.Display.getDefault(Display.java:1383)
    at org.eclipse.swt.widgets.Shell.<init>(Shell.java:270)
    at org.eclipse.swt.widgets.Shell.<init>(Shell.java:263)
    at com.example.swt.ShellViewParent.attach(ShellViewParent.java:124)
    at com.example.swt.MultipleParents.init(MultipleParents.java:55)
    at com.example.client.mvc.ViewController.setViewParents(ViewController.java:320)
    at com.example.client.mvc.ViewController.setViewParents(ViewController.java:287)
    at com.example.client.mvc.ViewController.setViewParents(ViewController.java:278)
    at com.example.client.gui.prefs.PreferencesViewController.<init>(PreferencesViewController.java:53)
    at com.example.client.ClientController.init(ClientController.java:353)
    at com.example.mvc.Controller.register(Controller.java:51)
    at com.example.client.Application.loadComponents(Application.java:153)
    at com.example.client.Application.start(Application.java:139)
    at com.example.client.Application.main(Application.java:166)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at com.sun.javaws.Launcher.executeApplication(Unknown Source)
    at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
    at com.sun.javaws.Launcher.doLaunchApp(Unknown Source)
    at com.sun.javaws.Launcher.run(Unknown Source)
    at java.lang.Thread.run(Thread.java:722)

org.eclipse.swt.SWTException: Invalid thread access
    at org.eclipse.swt.SWT.error(SWT.java:4282)
    at org.eclipse.swt.SWT.error(SWT.java:4197)
    at org.eclipse.swt.SWT.error(SWT.java:4168)
    at org.eclipse.swt.widgets.Display.error(Display.java:1065)
    at org.eclipse.swt.widgets.Display.createDisplay(Display.java:822)
    at org.eclipse.swt.widgets.Display.create(Display.java:805)
    at org.eclipse.swt.graphics.Device.<init>(Device.java:130)
    at org.eclipse.swt.widgets.Display.<init>(Display.java:696)
    at org.eclipse.swt.widgets.Display.<init>(Display.java:687)
    at org.eclipse.swt.widgets.Display.getDefault(Display.java:1383)
    at org.eclipse.swt.widgets.Shell.<init>(Shell.java:270)
    at org.eclipse.swt.widgets.Shell.<init>(Shell.java:263)
    at com.example.swt.ShellViewParent.attach(ShellViewParent.java:124)
    at com.example.swt.MultipleParents.init(MultipleParents.java:55)
    at com.example.client.mvc.ViewController.setViewParents(ViewController.java:320)
    at com.example.client.mvc.ViewController.setViewParents(ViewController.java:287)
    at com.example.client.mvc.ViewController.setViewParents(ViewController.java:278)
    at com.example.client.gui.prefs.PreferencesViewController.<init>(PreferencesViewController.java:53)
    at com.example.client.ClientController.init(ClientController.java:353)
    at com.example.mvc.Controller.register(Controller.java:51)
    at com.example.client.Application.loadComponents(Application.java:153)
    at com.example.client.Application.start(Application.java:139)
    at com.example.client.Application.main(Application.java:166)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:601)
    at com.sun.javaws.Launcher.executeApplication(Unknown Source)
    at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
    at com.sun.javaws.Launcher.doLaunchApp(Unknown Source)
    at com.sun.javaws.Launcher.run(Unknown Source)
    at java.lang.Thread.run(Thread.java:722)

推荐答案

我在 Java 7 中也看到了这个问题，并想知道这是否是基于另一个人这篇文章的 Java 7 错误(我继续并提交了一个错误报告，因为我在搜索 Java 错误数据库时没有看到任何错误报告):http://www.java.net/forum/topic/jdk/java-se/webstart-os-x-xstartonfirstthread

I've been seeing this as well with Java 7 and wonder if it's a Java 7 bug based on this post from another person (I went ahead and submitted a bug report since I didn't see any from searching through the Java bug database): http://www.java.net/forum/topic/jdk/java-se/webstart-os-x-xstartonfirstthread

我发现的解决方法只是使用 Apple 提供的 Java 6 中的 javaws，尽管我必须从命令行启动它:/System/Library/Java/Support/Deploy.bundle/Contents/MacOS/javaws myjnlp.jnlp

The workaround I've found is simply to use javaws from the Java 6 supplied by Apple, although I had to launch it from the command line: /System/Library/Java/Support/Deploy.bundle/Contents/MacOS/javaws myjnlp.jnlp

这篇关于Java 7 使用 Web Start 破坏 OS X 上的 SWT 应用程序的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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