I'm getting an error after I do a find/replace in files. Is jEdit still under development? Is a final 4.3 version on the way?

I get this exception when I try to quit:

java.lang.NegativeArraySizeException
at org.gjt.sp.jedit.jEdit.getBuffers(jEdit.java:1950)
at org.gjt.sp.jedit.PerspectiveManager.savePerspective(PerspectiveManager.java:147)
at org.gjt.sp.jedit.jEdit.exit(jEdit.java:2473)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at bsh.Reflect.invokeOnMethod(Reflect.java:149)
at bsh.Reflect.invokeStaticMethod(Reflect.java:100)
at bsh.Name.invokeMethod(Name.java:872)
at bsh.BSHMethodInvocation.eval(BSHMethodInvocation.java:72)
at bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:102)
at bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:47)
at bsh.BSHBlock.evalBlock(BSHBlock.java:130)
at bsh.BSHBlock.eval(BSHBlock.java:80)
at bsh.BshMethod.invokeImpl(BshMethod.java:349)
at bsh.BshMethod.invoke(BshMethod.java:246)
at bsh.BshMethod.invoke(BshMethod.java:171)
at org.gjt.sp.jedit.BeanShell.runCachedBlock(BeanShell.java:523)
at org.gjt.sp.jedit.BeanShellAction.invoke(BeanShellAction.java:76)
at org.gjt.sp.jedit.gui.InputHandler.invokeAction(InputHandler.java:229)
at org.gjt.sp.jedit.jEdit$3.invokeAction(jEdit.java:2910)
at org.gjt.sp.jedit.EditAction$Wrapper.actionPerformed(EditAction.java:216)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.AbstractButton.doClick(AbstractButton.java:357)
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:1216)
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:1257)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
at java.awt.Component.processMouseEvent(Component.java:6038)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3260)
at java.awt.Component.processEvent(Component.java:5803)
at java.awt.Container.processEvent(Container.java:2058)
at java.awt.Component.dispatchEventImpl(Component.java:4410)
at java.awt.Container.dispatchEventImpl(Container.java:2116)
at java.awt.Component.dispatchEvent(Component.java:4240)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
at java.awt.Container.dispatchEventImpl(Container.java:2102)
at java.awt.Window.dispatchEventImpl(Window.java:2429)
at java.awt.Component.dispatchEvent(Component.java:4240)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)

I get this exception when I try to close only open buffer:

java.lang.NullPointerException
at org.gjt.sp.jedit.jEdit.removeBufferFromList(jEdit.java:3715)
at org.gjt.sp.jedit.jEdit._closeBuffer(jEdit.java:1709)
at org.gjt.sp.jedit.jEdit.closeBuffer(jEdit.java:1664)
at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at bsh.Reflect.invokeOnMethod(Reflect.java:149)
at bsh.Reflect.invokeStaticMethod(Reflect.java:100)
at bsh.Name.invokeMethod(Name.java:872)
at bsh.BSHMethodInvocation.eval(BSHMethodInvocation.java:72)
at bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:102)
at bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:47)
at bsh.BSHBlock.evalBlock(BSHBlock.java:130)
at bsh.BSHBlock.eval(BSHBlock.java:80)
at bsh.BshMethod.invokeImpl(BshMethod.java:349)
at bsh.BshMethod.invoke(BshMethod.java:246)
at bsh.BshMethod.invoke(BshMethod.java:171)
at org.gjt.sp.jedit.BeanShell.runCachedBlock(BeanShell.java:523)
at org.gjt.sp.jedit.BeanShellAction.invoke(BeanShellAction.java:76)
at org.gjt.sp.jedit.gui.InputHandler.invokeAction(InputHandler.java:229)
at org.gjt.sp.jedit.jEdit$3.invokeAction(jEdit.java:2910)
at org.gjt.sp.jedit.EditAction$Wrapper.actionPerformed(EditAction.java:216)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
at java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:272)
at java.awt.Component.processMouseEvent(Component.java:6038)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3260)
at java.awt.Component.processEvent(Component.java:5803)
at java.awt.Container.processEvent(Container.java:2058)
at java.awt.Component.dispatchEventImpl(Component.java:4410)
at java.awt.Container.dispatchEventImpl(Container.java:2116)
at java.awt.Component.dispatchEvent(Component.java:4240)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
at java.awt.Container.dispatchEventImpl(Container.java:2102)
at java.awt.Window.dispatchEventImpl(Window.java:2429)
at java.awt.Component.dispatchEvent(Component.java:4240)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)