Java 10上的Swing问题
我目前正在尝试将我们的应用程序从Java 8迁移到Java 10，并且在几个月内将转向Java 11。
我们有一个遗留系统，它使用了一些API，我猜这些API会被移除或删除。 我们使用ant脚本（1.10.1）进行应用程序编译。
以下是构建我们的应用程序的部分：
在编译期间，我收到的几个与Java Swing相关的错误（再次比较旧的，但必须忍受它）转移到Java 10.我仍然没有完全意识到Java 10中发生的所有更改，对我来说它看起来喜欢这个问题与模块化概念有关。 虽然还在学习，但不确定。 我知道你的建议，知道这些错误是否与模块化有关。 还有任何建议或提示来解决这些问题？
以下是错误：
[javac] Compiling 3253 source files to C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\classes [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\datamgmt\report\ui\AssignPosNumberToolbar.java:26: error: package com.sun.java.swing.plaf.windows is not visible [javac] import com.sun.java.swing.plaf.windows.WindowsButtonUI; [javac] ^ [javac] (package com.sun.java.swing.plaf.windows is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\datamgmt\report\ui\AssignPosNumberToolbar.java:27: error: package com.sun.java.swing.plaf.windows is not visible [javac] import com.sun.java.swing.plaf.windows.WindowsToolBarUI; [javac] ^ [javac] (package com.sun.java.swing.plaf.windows is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\ui\utils\WMClosableTabbedPane.java:33: error: package com.sun.java.swing.plaf.windows is not visible [javac] import com.sun.java.swing.plaf.windows.WindowsTabbedPaneUI; [javac] ^ [javac] (package com.sun.java.swing.plaf.windows is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\ui\MultiColumnComboBox.java:58: error: package com.sun.java.swing.plaf.motif is not visible [javac] import com.sun.java.swing.plaf.motif.MotifComboBoxUI; [javac] ^ [javac] (package com.sun.java.swing.plaf.motif is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\datamgmt\ui\SimplificationComboBox.java:31: error: package com.sun.java.swing.plaf.motif is not visible [javac] import com.sun.java.swing.plaf.motif.MotifComboBoxUI; [javac] ^ [javac] (package com.sun.java.swing.plaf.motif is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\ui\laf\xplookandfeel\XPComboBoxUI.java:21: error: package com.sun.java.swing.plaf.windows is not visible [javac] import com.sun.java.swing.plaf.windows.WindowsComboBoxUI; [javac] ^ [javac] (package com.sun.java.swing.plaf.windows is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\datamgmt\ui\favorites\FavoritesToolBar.java:28: error: package com.sun.java.swing.plaf.windows is not visible [javac] import com.sun.java.swing.plaf.windows.WindowsButtonUI; [javac] ^ [javac] (package com.sun.java.swing.plaf.windows is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\datamgmt\ui\favorites\FavoritesToolBar.java:29: error: package com.sun.java.swing.plaf.windows is not visible [javac] import com.sun.java.swing.plaf.windows.WindowsToolBarUI; [javac] ^ [javac] (package com.sun.java.swing.plaf.windows is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\ui\laf\ptc\PtcLaf.java:14: error: package com.sun.java.swing.plaf.windows is not visible [javac] import com.sun.java.swing.plaf.windows.WindowsLookAndFeel; [javac] ^ [javac] (package com.sun.java.swing.plaf.windows is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\ui\laf\ptc\PtcMenuUI.java:31: error: package com.sun.java.swing.plaf.windows is not visible [javac] import com.sun.java.swing.plaf.windows.WindowsLookAndFeel; [javac] ^ [javac] (package com.sun.java.swing.plaf.windows is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\ui\laf\ptc\PtcRadioButtonMenuItemUI.java:14: error: package com.sun.java.swing.plaf.windows is not visible [javac] import com.sun.java.swing.plaf.windows.WindowsIconFactory; [javac] ^ [javac] (package com.sun.java.swing.plaf.windows is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\ui\laf\ptc\PtcSeparatorUI.java:20: error: package com.sun.java.swing.plaf.windows is not visible [javac] import com.sun.java.swing.plaf.windows.WindowsSeparatorUI; [javac] ^ [javac] (package com.sun.java.swing.plaf.windows is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\ui\laf\xplookandfeel\XPButtonUI.java:26: error: package com.sun.java.swing.plaf.windows is not visible [javac] import com.sun.java.swing.plaf.windows.WindowsButtonUI; [javac] ^ [javac] (package com.sun.java.swing.plaf.windows is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\ui\laf\xplookandfeel\XPLookAndFeel.java:24: error: package com.sun.java.swing.plaf.windows is not visible [javac] import com.sun.java.swing.plaf.windows.WindowsIconFactory; [javac] ^ [javac] (package com.sun.java.swing.plaf.windows is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\ui\laf\xplookandfeel\XPLookAndFeel.java:25: error: package com.sun.java.swing.plaf.windows is not visible [javac] import com.sun.java.swing.plaf.windows.WindowsLookAndFeel; [javac] ^ [javac] (package com.sun.java.swing.plaf.windows is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\ui\laf\xplookandfeel\XPMenuUI.java:25: error: package com.sun.java.swing.plaf.windows is not visible [javac] import com.sun.java.swing.plaf.windows.WindowsLookAndFeel; [javac] ^ [javac] (package com.sun.java.swing.plaf.windows is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\ui\laf\xplookandfeel\XPRadioButtonMenuItemUI.java:14: error: package com.sun.java.swing.plaf.windows is not visible [javac] import com.sun.java.swing.plaf.windows.WindowsIconFactory; [javac] ^ [javac] (package com.sun.java.swing.plaf.windows is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\ui\laf\xplookandfeel\XPSeparatorUI.java:17: error: package com.sun.java.swing.plaf.windows is not visible [javac] import com.sun.java.swing.plaf.windows.WindowsSeparatorUI; [javac] ^ [javac] (package com.sun.java.swing.plaf.windows is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\ui\laf\xplookandfeel\XPToggleButtonUI.java:23: error: package com.sun.java.swing.plaf.windows is not visible [javac] import com.sun.java.swing.plaf.windows.WindowsToggleButtonUI; [javac] ^ [javac] (package com.sun.java.swing.plaf.windows is declared in module java.desktop, which does not export it) [javac] C:\WorkSpace\JAVA10\oswm\rel20.10_Patches\WorkManager\src\com\osm\ui\laf\xplookandfeel\XPToolBarUI.java:17: error: package com.sun.java.swing.plaf.windows is not visible [javac] import com.sun.java.swing.plaf.windows.WindowsToolBarUI; [javac] ^ [javac] (package com.sun.java.swing.plaf.windows is declared in module java.desktop, which does not export it) [javac] 20 errors
是的，这是由于模块系统。 您正在访问内部API ，默认情况下JPMS不允许您这样做。
快速解决
要快速解决此问题，请对消息提到的每个包使用命令行选项--add-exports %module/%package=ALL-UNNAMED ，例如：
--add-exports java.desktop/com.sun.java.swing.plaf.windows=ALL-UNNAMED
（不，没有通配符）您必须将这些添加到Java 9+的构建命令中，并且在某些时候（可能是Java 12+）也添加到您的执行命令中。
正确修复
如上所述，这只是一个快速修复。 有了模块系统，JDK团队可能会更积极地重构您正在使用的API之类的内部，因此您将来可能会遇到更改或删除类的问题。
正确的解决方法是删除对这些内部的依赖关系。 第一步是检查您在那里使用的function是否可以获得标准化的API。