用 jb 8 在用jsp wizzard生成jsp后保存的时候出现问题：
   Could NOT save file "jsp1.jsp" com.borland.primetime.util.AssertionException:gbk


   后台报错如下：


Disabling offscreen DirectDraw acceleration
com.borland.primetime.util.AssertionException: gbk
        at com.borland.primetime.viewer.hb.getBufferContent(Unknown Source)
        at com.borland.primetime.vfs.Buffer.updateContent(Unknown Source)
        at com.borland.primetime.vfs.Buffer.getContent(Unknown Source)
        at com.borland.jbuilder.node.html.HTMLStructure.updateStructure(Unknown
Source)
        at com.borland.primetime.node.TextStructure.updateStructureQuickly(Unkno
wn Source)
        at com.borland.primetime.viewer.jb.actionPerformed(Unknown Source)
        at javax.swing.Timer.fireActionPerformed(Timer.java:271)
        at javax.swing.Timer$DoPostEvent.run(Timer.java:201)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:448)
        at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchTh
read.java:197)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:150)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:144)

        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)

        at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)
com.borland.primetime.util.AssertionException: gbk
        at com.borland.primetime.viewer.hb.getBufferContent(Unknown Source)
        at com.borland.primetime.vfs.Buffer.updateContent(Unknown Source)
        at com.borland.primetime.vfs.Buffer.getContent(Unknown Source)
        at com.borland.primetime.vfs.Buffer.save(Unknown Source)
        at com.borland.primetime.node.FileNode.save(Unknown Source)
        at com.borland.primetime.ide.Browser.doSave(Unknown Source)
        at com.borland.primetime.ide.Browser.doSave(Unknown Source)
        at com.borland.primetime.ide.Browser.doSaveAll(Unknown Source)
        at com.borland.primetime.ide.Browser.doSaveAll(Unknown Source)
        at com.borland.primetime.ide.hh.actionPerformed(Unknown Source)
        at com.borland.primetime.ide.BrowserAction.actionPerformed(Unknown Sourc
e)
        at com.borland.primetime.actions.ActionButton.a(Unknown Source)
        at com.borland.primetime.actions.ActionButton.fire(Unknown Source)
        at com.borland.primetime.actions.ActionButton.processMouseEvent(Unknown
Source)
        at java.awt.Component.processEvent(Component.java:4890)
        at java.awt.Container.processEvent(Container.java:1566)
        at java.awt.Component.dispatchEventImpl(Component.java:3598)
        at java.awt.Container.dispatchEventImpl(Container.java:1623)
        at java.awt.Component.dispatchEvent(Component.java:3439)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:3450
)
        at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3165)

        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3095)
        at java.awt.Container.dispatchEventImpl(Container.java:1609)
        at java.awt.Window.dispatchEventImpl(Window.java:1585)
        at java.awt.Component.dispatchEvent(Component.java:3439)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:450)
        at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchTh
read.java:197)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:150)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:144)

        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)

        at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)
com.borland.primetime.util.AssertionException: gbk
        at com.borland.primetime.viewer.hb.getBufferContent(Unknown Source)
        at com.borland.primetime.vfs.Buffer.updateContent(Unknown Source)
        at com.borland.primetime.vfs.Buffer.getContent(Unknown Source)
        at com.borland.jbuilder.node.html.HTMLStructure.updateStructure(Unknown
Source)
        at com.borland.primetime.node.TextStructure.updateStructureQuickly(Unkno
wn Source)
        at com.borland.primetime.viewer.jb.actionPerformed(Unknown Source)
        at javax.swing.Timer.fireActionPerformed(Timer.java:271)
        at javax.swing.Timer$DoPostEvent.run(Timer.java:201)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:178)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:448)
        at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchTh
read.java:197)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThre
ad.java:150)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:144)

        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:136)

        at java.awt.EventDispatchThread.run(EventDispatchThread.java:99)

问题应该归因于 Borland, 是由于他们使用了非标准的 sun.io.*包.

在这个包中的Char2Byte* 与 Byte2Char* 类就是字符集与 byte 相互转换的 class, 处理类名与字符集映射关系的就是 sun.io.CharacterEncoding 类,反编译可以看到 一个大的 HashMap, 就是对应关系.这个类默认不支持小写的 gbk( 可能是由于 GBK 不是国家标准)。 解决方法也简单，加入 gbk 的支持就行了，往 CharacterEncoding 加入一行
  ((HashMap)obj).put("gbk", "GBK")
就搞定了。（GBK 的支持类在 charsets.jar 包中）

注意：
  将其编译之后一定要放回到 JBuilder 使用的 jdk 下的 rt.jar 中,否则可能不起作用。