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我为Jmeter编写了一个自定义的采样器，但是在将其添加到Jmeters的lib/ext文件夹后，它在启动时崩溃。并出现以下错误：Jmeter在添加自定义采样器后启动后崩溃
java.lang.OutOfMemoryError: PermGen space
Dumping heap to java_pid1448.hprof ...
Heap dump file created [23456544 bytes in 0.490 secs]
Uncaught Exception java.lang.OutOfMemoryError: PermGen space. See log file for details.
的jmeter.log的内容：
2013/08/20 10:53:15 INFO - jmeter.util.JMeterUtils: Setting Locale to en_US
2013/08/20 10:53:15 INFO - jmeter.JMeter: Loading user properties from: C:\Users\tajaj\Desktop\Jmeter New\apache-jmeter-2.9\bin\user.properties
2013/08/20 10:53:15 INFO - jmeter.JMeter: Loading system properties from: C:\Users\tajaj\Desktop\Jmeter New\apache-jmeter-2.9\bin\system.properties
2013/08/20 10:53:15 INFO - jmeter.JMeter: Copyright (c) 1998-2013 The Apache Software Foundation
2013/08/20 10:53:15 INFO - jmeter.JMeter: Version 2.9 r1437961
2013/08/20 10:53:15 INFO - jmeter.JMeter: java.version=1.6.0_33
2013/08/20 10:53:15 INFO - jmeter.JMeter: java.vm.name=Java HotSpot(TM) 64-Bit Server VM
2013/08/20 10:53:15 INFO - jmeter.JMeter: os.name=Windows 7
2013/08/20 10:53:15 INFO - jmeter.JMeter: os.arch=amd64
2013/08/20 10:53:15 INFO - jmeter.JMeter: os.version=6.1
2013/08/20 10:53:15 INFO - jmeter.JMeter: file.encoding=Cp1252
2013/08/20 10:53:15 INFO - jmeter.JMeter: Default Locale=English (United States)
2013/08/20 10:53:15 INFO - jmeter.JMeter: JMeter Locale=English (United States)
2013/08/20 10:53:15 INFO - jmeter.JMeter: JMeterHome=C:\Users\tajaj\Desktop\Jmeter New\apache-jmeter-2.9
2013/08/20 10:53:15 INFO - jmeter.JMeter: user.dir =C:\Users\tajaj\Desktop\Jmeter New\apache-jmeter-2.9\bin
2013/08/20 10:53:15 INFO - jmeter.JMeter: PWD =C:\Users\tajaj\Desktop\Jmeter New\apache-jmeter-2.9\bin
2013/08/20 10:53:15 INFO - jmeter.JMeter: IP: 10.172.20.199 Name: TRAINING2 FullName: TRAINING2.mobinets.local
2013/08/20 10:53:15 INFO - jmeter.JMeter: Loaded icon properties from org/apache/jmeter/images/icon.properties
2013/08/20 10:53:16 INFO - jmeter.engine.util.CompoundVariable: Note: Function class names must contain the string: '.functions.'
2013/08/20 10:53:16 INFO - jmeter.engine.util.CompoundVariable: Note: Function class names must not contain the string: '.gui.'
2013/08/20 10:53:16 INFO - jmeter.gui.action.LookAndFeelCommand: Using look and feel: com.sun.java.swing.plaf.windows.WindowsLookAndFeel [Windows, System]
2013/08/20 10:53:21 INFO - jmeter.util.BSFTestElement: Registering JMeter version of JavaScript engine as work-round for BSF-22
2013/08/20 10:53:22 INFO - jmeter.protocol.http.sampler.HTTPSamplerBase: Cannot find .className property for htmlParser, using default
2013/08/20 10:53:22 INFO - jmeter.protocol.http.sampler.HTTPSamplerBase: Parser for text/html is
2013/08/20 10:53:22 INFO - jmeter.protocol.http.sampler.HTTPSamplerBase: Parser for application/xhtml+xml is
2013/08/20 10:53:22 INFO - jmeter.protocol.http.sampler.HTTPSamplerBase: Parser for application/xml is
2013/08/20 10:53:22 INFO - jmeter.protocol.http.sampler.HTTPSamplerBase: Parser for text/xml is
2013/08/20 10:53:22 INFO - jmeter.protocol.http.sampler.HTTPSamplerBase: Parser for text/vnd.wap.wml is org.apache.jmeter.protocol.http.parser.RegexpHTMLParser
2013/08/20 10:53:22 INFO - jmeter.protocol.http.sampler.HTTPSamplerBase: Reuse SSL session context on subsequent iterations: true
2013/08/20 10:53:22 INFO - jmeter.gui.util.MenuFactory: Skipping org.apache.jmeter.protocol.http.modifier.gui.ParamModifierGui
2013/08/20 10:53:26 WARN - jmeter.gui.util.MenuFactory: Could not instantiate org.apache.jmeter.protocol.smtp.sampler.gui.SmtpSamplerGui java.lang.OutOfMemoryError: PermGen space
at com.sun.java.swing.plaf.windows.WindowsFileChooserUI.installComponents(WindowsFileChooserUI.java:199)
at javax.swing.plaf.basic.BasicFileChooserUI.installUI(BasicFileChooserUI.java:134)
at com.sun.java.swing.plaf.windows.WindowsFileChooserUI.installUI(WindowsFileChooserUI.java:140)
at javax.swing.JComponent.setUI(JComponent.java:662)
at javax.swing.JFileChooser.updateUI(JFileChooser.java:1763)
at javax.swing.JFileChooser.setup(JFileChooser.java:360)
at javax.swing.JFileChooser.<init>(JFileChooser.java:333)
at javax.swing.JFileChooser.<init>(JFileChooser.java:286)
at org.apache.jmeter.protocol.smtp.sampler.gui.SmtpPanel.initComponents(SmtpPanel.java:541)
at org.apache.jmeter.protocol.smtp.sampler.gui.SmtpPanel.<init>(SmtpPanel.java:113)
at org.apache.jmeter.protocol.smtp.sampler.gui.SmtpSamplerGui.makeDataPanel(SmtpSamplerGui.java:186)
at org.apache.jmeter.protocol.smtp.sampler.gui.SmtpSamplerGui.init(SmtpSamplerGui.java:166)
at org.apache.jmeter.protocol.smtp.sampler.gui.SmtpSamplerGui.<init>(SmtpSamplerGui.java:47)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)
at org.apache.jmeter.gui.util.MenuFactory.initializeMenus(MenuFactory.java:455)
at org.apache.jmeter.gui.util.MenuFactory.<clinit>(MenuFactory.java:159)
at org.apache.jmeter.control.gui.WorkBenchGui.createPopupMenu(WorkBenchGui.java:90)
at org.apache.jmeter.gui.tree.JMeterTreeNode.createPopupMenu(JMeterTreeNode.java:158)
at org.apache.jmeter.gui.action.EditCommand.doAction(EditCommand.java:47)
at org.apache.jmeter.gui.action.ActionRouter.performAction(ActionRouter.java:81)
at org.apache.jmeter.gui.action.ActionRouter.access$000(ActionRouter.java:40)
at org.apache.jmeter.gui.action.ActionRouter$1.run(ActionRouter.java:63)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:646)
at java.awt.EventQueue.access$000(EventQueue.java:84)
at java.awt.EventQueue$1.run(EventQueue.java:607)
at java.awt.EventQueue$1.run(EventQueue.java:605)
2013/08/20 10:53:26 ERROR - jmeter.gui.util.MenuFactory: java.lang.OutOfMemoryError: PermGen space
at com.sun.java.swing.plaf.windows.WindowsFileChooserUI.installComponents(WindowsFileChooserUI.java:199)
at javax.swing.plaf.basic.BasicFileChooserUI.installUI(BasicFileChooserUI.java:134)
at com.sun.java.swing.plaf.windows.WindowsFileChooserUI.installUI(WindowsFileChooserUI.java:140)
at javax.swing.JComponent.setUI(JComponent.java:662)
at javax.swing.JFileChooser.updateUI(JFileChooser.java:1763)
at javax.swing.JFileChooser.setup(JFileChooser.java:360)
at javax.swing.JFileChooser.<init>(JFileChooser.java:333)
at javax.swing.JFileChooser.<init>(JFileChooser.java:286)
at org.apache.jmeter.protocol.smtp.sampler.gui.SmtpPanel.initComponents(SmtpPanel.java:541)
at org.apache.jmeter.protocol.smtp.sampler.gui.SmtpPanel.<init>(SmtpPanel.java:113)
at org.apache.jmeter.protocol.smtp.sampler.gui.SmtpSamplerGui.makeDataPanel(SmtpSamplerGui.java:186)
at org.apache.jmeter.protocol.smtp.sampler.gui.SmtpSamplerGui.init(SmtpSamplerGui.java:166)
at org.apache.jmeter.protocol.smtp.sampler.gui.SmtpSamplerGui.<init>(SmtpSamplerGui.java:47)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)
at org.apache.jmeter.gui.util.MenuFactory.initializeMenus(MenuFactory.java:455)
at org.apache.jmeter.gui.util.MenuFactory.<clinit>(MenuFactory.java:159)
at org.apache.jmeter.control.gui.WorkBenchGui.createPopupMenu(WorkBenchGui.java:90)
at org.apache.jmeter.gui.tree.JMeterTreeNode.createPopupMenu(JMeterTreeNode.java:158)
at org.apache.jmeter.gui.action.EditCommand.doAction(EditCommand.java:47)
at org.apache.jmeter.gui.action.ActionRouter.performAction(ActionRouter.java:81)
at org.apache.jmeter.gui.action.ActionRouter.access$000(ActionRouter.java:40)
at org.apache.jmeter.gui.action.ActionRouter$1.run(ActionRouter.java:63)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:646)
at java.awt.EventQueue.access$000(EventQueue.java:84)
at java.awt.EventQueue$1.run(EventQueue.java:607)
at java.awt.EventQueue$1.run(EventQueue.java:605)
2013/08/20 10:53:26 ERROR - jmeter.JMeter: Uncaught exception: java.lang.OutOfMemoryError: PermGen space
at com.sun.java.swing.plaf.windows.WindowsFileChooserUI.installComponents(WindowsFileChooserUI.java:199)
at javax.swing.plaf.basic.BasicFileChooserUI.installUI(BasicFileChooserUI.java:134)
at com.sun.java.swing.plaf.windows.WindowsFileChooserUI.installUI(WindowsFileChooserUI.java:140)
at javax.swing.JComponent.setUI(JComponent.java:662)
at javax.swing.JFileChooser.updateUI(JFileChooser.java:1763)
at javax.swing.JFileChooser.setup(JFileChooser.java:360)
at javax.swing.JFileChooser.<init>(JFileChooser.java:333)
at javax.swing.JFileChooser.<init>(JFileChooser.java:286)
at org.apache.jmeter.protocol.smtp.sampler.gui.SmtpPanel.initComponents(SmtpPanel.java:541)
at org.apache.jmeter.protocol.smtp.sampler.gui.SmtpPanel.<init>(SmtpPanel.java:113)
at org.apache.jmeter.protocol.smtp.sampler.gui.SmtpSamplerGui.makeDataPanel(SmtpSamplerGui.java:186)
at org.apache.jmeter.protocol.smtp.sampler.gui.SmtpSamplerGui.init(SmtpSamplerGui.java:166)
at org.apache.jmeter.protocol.smtp.sampler.gui.SmtpSamplerGui.<init>(SmtpSamplerGui.java:47)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at java.lang.Class.newInstance0(Class.java:355)
at java.lang.Class.newInstance(Class.java:308)
at org.apache.jmeter.gui.util.MenuFactory.initializeMenus(MenuFactory.java:455)
at org.apache.jmeter.gui.util.MenuFactory.<clinit>(MenuFactory.java:159)
at org.apache.jmeter.control.gui.WorkBenchGui.createPopupMenu(WorkBenchGui.java:90)
at org.apache.jmeter.gui.tree.JMeterTreeNode.createPopupMenu(JMeterTreeNode.java:158)
at org.apache.jmeter.gui.action.EditCommand.doAction(EditCommand.java:47)
at org.apache.jmeter.gui.action.ActionRouter.performAction(ActionRouter.java:81)
at org.apache.jmeter.gui.action.ActionRouter.access$000(ActionRouter.java:40)
at org.apache.jmeter.gui.action.ActionRouter$1.run(ActionRouter.java:63)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:646)
at java.awt.EventQueue.access$000(EventQueue.java:84)
at java.awt.EventQueue$1.run(EventQueue.java:607)
at java.awt.EventQueue$1.run(EventQueue.java:605)
2013/08/20 10:53:33 ERROR - jmeter.JMeter: Uncaught exception: java.lang.OutOfMemoryError: PermGen space
2013/08/20 10:53:33 ERROR - jmeter.JMeter: Uncaught exception: java.lang.OutOfMemoryError: PermGen space
任何想法是什么问题，如何解决呢？
在此先感谢。