When changing a line, jEdit is hanging a little because the DirtyGutter (LCMPlugin) is throwing an exception due to invalid slashes in the file path over sftp. Disabling the DirtyGutter plugin resolves this issue.
My environment details:
jEdit 5.1pre1
Java 1.7.0_15
Windows 7 64bit
here is the exception (note the backslashes in the first line):
java.io.FileNotFoundException: \home\jmcmul01\scripts\jim.ksh (The system cannot find the path specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:138)
at java.io.FileInputStream.<init>(FileInputStream.java:97)
at org.gjt.sp.jedit.io.FileVFS._createInputStream(FileVFS.java:519)
at lcm.LCMPlugin.readFile(Unknown Source)
at lcm.providers.diff.DiffBufferHandler.doDiff(Unknown Source)
at lcm.providers.diff.DiffBufferHandler.handleContentChange(Unknown Source)
at lcm.providers.diff.DiffBufferHandler.contentInserted(Unknown Source)
at org.gjt.sp.jedit.buffer.JEditBuffer.fireContentInserted(JEditBuffer.java:2458)
at org.gjt.sp.jedit.buffer.JEditBuffer.contentInserted(JEditBuffer.java:2790)
at org.gjt.sp.jedit.buffer.JEditBuffer.insert(JEditBuffer.java:734)
at org.gjt.sp.jedit.buffer.JEditBuffer.insert(JEditBuffer.java:678)
at org.gjt.sp.jedit.textarea.TextArea.replaceSelection(TextArea.java:2076)
at org.gjt.sp.jedit.textarea.JEditTextArea.replaceSelection(JEditTextArea.java:248)
at org.gjt.sp.jedit.textarea.TextArea.setSelectedText(TextArea.java:2034)
at org.gjt.sp.jedit.textarea.TextArea.insertEnterAndIndent(TextArea.java:4476)
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 org.gjt.sp.jedit.bsh.Reflect.invokeMethod(Reflect.java:134)
at org.gjt.sp.jedit.bsh.Reflect.invokeObjectMethod(Reflect.java:80)
at org.gjt.sp.jedit.bsh.Name.invokeMethod(Name.java:855)
at org.gjt.sp.jedit.bsh.BSHMethodInvocation.eval(BSHMethodInvocation.java:75)
at org.gjt.sp.jedit.bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:102)
at org.gjt.sp.jedit.bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:47)
at org.gjt.sp.jedit.bsh.BSHBlock.evalBlock(BSHBlock.java:130)
at org.gjt.sp.jedit.bsh.BSHBlock.eval(BSHBlock.java:80)
at org.gjt.sp.jedit.bsh.BshMethod.invokeImpl(BshMethod.java:362)
at org.gjt.sp.jedit.bsh.BshMethod.invoke(BshMethod.java:258)
at org.gjt.sp.jedit.bsh.BshMethod.invoke(BshMethod.java:186)
at org.gjt.sp.jedit.BeanShellFacade.runCachedBlock(BeanShellFacade.java:225)
at org.gjt.sp.jedit.BeanShell.runCachedBlock(BeanShell.java:431)
at org.gjt.sp.jedit.BeanShellAction.invoke(BeanShellAction.java:73)
at org.gjt.sp.jedit.gui.InputHandler.invokeAction(InputHandler.java:342)
at org.gjt.sp.jedit.gui.InputHandler.invokeAction(InputHandler.java:307)
at org.gjt.sp.jedit.gui.DefaultInputHandler.handleKey(DefaultInputHandler.java:196)
at org.gjt.sp.jedit.input.AbstractInputHandler.processKeyEventKeyStrokeHandling(AbstractInputHandler.java:405)
at org.gjt.sp.jedit.gui.InputHandler.processKeyEvent(InputHandler.java:151)
at org.gjt.sp.jedit.textarea.TextArea.processKeyEvent(TextArea.java:4726)
at java.awt.Component.processEvent(Component.java:6282)
at java.awt.Container.processEvent(Container.java:2229)
at java.awt.Component.dispatchEventImpl(Component.java:4861)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1895)
at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:762)
at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1027)
at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:899)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:727)
at java.awt.Component.dispatchEventImpl(Component.java:4731)
at java.awt.Container.dispatchEventImpl(Container.java:2287)
at java.awt.Window.dispatchEventImpl(Window.java:2719)
at java.awt.Component.dispatchEvent(Component.java:4687)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:729)
at java.awt.EventQueue.access$200(EventQueue.java:103)
at java.awt.EventQueue$3.run(EventQueue.java:688)
at java.awt.EventQueue$3.run(EventQueue.java:686)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.awt.EventQueue$4.run(EventQueue.java:702)
at java.awt.EventQueue$4.run(EventQueue.java:700)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:699)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)
jEdit is not hanging for me, and I don't think the problem are the "invalid backslashes".
From what I see (I also get this exception on jEdit 5.7.0 with DirtyGutter 0.3b) I'd say the problem is that the plugin considers all buffers to be local, not considering the file system where the file actually coming from.
And it even comes with DirtyGutter disabled in its plugins menu. To work-around you really have to disable the whole plugin.