title: how to suppress "Picked up JAVA_TOOL_OPTIONS: -javaagent:/usr/share/java/jayatanaag.jar" message
body: <p>I am using Ubuntu 15.04 and Java 1.7. After updating to 15.04, whenever I type any Java command, I get a message like: </p>
  
  
  
  <pre class="lang-none prettyprint-override"><code>Picked up JAVA_TOOL_OPTIONS: -javaagent:/usr/share/java/jayatanaag.jar
  </code></pre>
  
  <p>For example:</p>
  
  <p><pre class="lang-none prettyprint-override"><code>hduser@ubuntu:~$ java -version
  <strong>Picked up JAVA_TOOL_OPTIONS: -javaagent:/usr/share/java/jayatanaag.jar</strong>
  java version "1.7.0_21"
  Java(TM) SE Runtime Environment (build 1.7.0_21-b11)
  Java HotSpot(TM) 64-Bit Server VM (build 23.21-b01, mixed mode)</pre></code></p>
  
  <p>How can I suppress this behavior? </p>