2015/07/22 07:58:59 ERROR - jmeter.JMeter: Uncaught exception:  java.lang.NoClassDefFoundError: com/sun/jna/platform/win32/Kernel32
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(Unknown Source)
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$100(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at org.openqa.selenium.os.ProcessUtils.killWinProcess(ProcessUtils.java:133)
	at org.openqa.selenium.os.ProcessUtils.killProcess(ProcessUtils.java:81)
	at org.openqa.selenium.os.UnixProcess$SeleniumWatchDog.destroyHarder(UnixProcess.java:248)
	at org.openqa.selenium.os.UnixProcess$SeleniumWatchDog.access$200(UnixProcess.java:200)
	at org.openqa.selenium.os.UnixProcess.destroy(UnixProcess.java:124)
	at org.openqa.selenium.os.CommandLine.destroy(CommandLine.java:153)
	at org.openqa.selenium.firefox.FirefoxBinary.quit(FirefoxBinary.java:259)
	at org.openqa.selenium.firefox.internal.NewProfileExtensionConnection.quit(NewProfileExtensionConnection.java:202)
	at org.openqa.selenium.firefox.FirefoxDriver$LazyCommandExecutor.quit(FirefoxDriver.java:376)
	at org.openqa.selenium.firefox.FirefoxDriver.stopClient(FirefoxDriver.java:322)
	at org.openqa.selenium.remote.RemoteWebDriver.quit(RemoteWebDriver.java:477)
	at com.googlecode.jmeter.plugins.webdriver.config.WebDriverConfig.quitBrowser(WebDriverConfig.java:269)
	at com.googlecode.jmeter.plugins.webdriver.config.WebDriverConfig.threadFinished(WebDriverConfig.java:244)
	at org.apache.jmeter.threads.JMeterThread$ThreadListenerTraverser.addNode(JMeterThread.java:612)
	at org.apache.jorphan.collections.HashTree.traverseInto(HashTree.java:998)
	at org.apache.jorphan.collections.HashTree.traverse(HashTree.java:980)
	at org.apache.jmeter.threads.JMeterThread.threadFinished(JMeterThread.java:584)
	at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:315)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.ClassNotFoundException: com.sun.jna.platform.win32.Kernel32
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 30 m