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java.lang.NullPointerException at java.util.Hashtable.put(Unknown Source) at java.util.Properties.setProperty(Unknown Source) at org.apache.jmeter.util.SSLManager.getKeyStore(SSLManager.java:136) at org.apache.jmeter.util.JsseSSLManager.getContext(JsseSSLManager.java:141) at org.apache.jmeter.util.JsseSSLManager.<init>(JsseSSLManager.java:88) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Unknown Source) at org.apache.jmeter.util.SSLManager.getInstance(SSLManager.java:231) at org.apache.jmeter.protocol.http.sampler.HTTPSampler.setupConnection(HTTPSampler.java:148) at org.apache.jmeter.protocol.http.sampler.HTTPSampler.sample(HTTPSampler.java:404) at org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.sample(HTTPSamplerBase.java:658) at org.apache.jmeter.protocol.http.proxy.Proxy.run(Proxy.java:112)