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 <pre>public class <span class="typeNameLabel">Utils</span>
 extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
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 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Class and Description</th>
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 <tr class="altColor">
 <td class="colFirst"><code>static class&nbsp;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.SmartThread.html" title="class in org.apache.storm.utils">Utils.SmartThread</a></span></code>
 <div class="block">A thread that can answer if it is sleeping in the case of simulated time.</div>
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 <td class="colFirst"><code>static class&nbsp;</code></td>
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 <th class="colLast" scope="col">Field and Description</th>
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 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/regex/Pattern.html?is-external=true" title="class or interface in java.util.regex">Pattern</a></code></td>
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 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#Utils--">Utils</a></span>()</code>&nbsp;</td>
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 <tr id="i3" class="rowColor">
 <td class="colFirst"><code>static <a href="../../../../org/apache/storm/utils/Utils.SmartThread.html" title="class in org.apache.storm.utils">Utils.SmartThread</a></code></td>
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 <div class="block">Convenience method used when only the function is given.</div>
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 <tr id="i4" class="altColor">
 <td class="colFirst"><code>static <a href="../../../../org/apache/storm/utils/Utils.SmartThread.html" title="class in org.apache.storm.utils">Utils.SmartThread</a></code></td>
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 <div class="block">Creates a thread that calls the given code repeatedly, sleeping for an interval of seconds equal to the return value of the previous call.</div>
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 <tr id="i5" class="rowColor">
 <td class="colFirst"><code>static <a href="../../../../org/apache/storm/utils/Utils.SmartThread.html" title="class in org.apache.storm.utils">Utils.SmartThread</a></code></td>
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 <div class="block">Convenience method used when only the function and name suffix are given.</div>
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 <tr id="i6" class="altColor">
 <td class="colFirst"><code>static long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#bitXor-java.lang.Long-java.lang.Long-">bitXor</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>&nbsp;a,
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 <tr id="i7" class="rowColor">
 <td class="colFirst"><code>static long</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#bitXorVals-java.util.List-">bitXorVals</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>&gt;&nbsp;coll)</code>&nbsp;</td>
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 <tr id="i8" class="altColor">
 <td class="colFirst"><code>static boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#checkDirExists-java.lang.String-">checkDirExists</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;dir)</code>&nbsp;</td>
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 <tr id="i9" class="rowColor">
 <td class="colFirst"><code>static boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#checkFileExists-java.lang.String-">checkFileExists</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;path)</code>&nbsp;</td>
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 <tr id="i10" class="altColor">
 <td class="colFirst"><code>static &lt;V&gt;&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a>&lt;V&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#convertToArray-java.util.Map-int-">convertToArray</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,V&gt;&nbsp;srcMap,
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 <tr id="i11" class="rowColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.UncaughtExceptionHandler.html?is-external=true" title="class or interface in java.lang">Thread.UncaughtExceptionHandler</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#createDefaultUncaughtExceptionHandler--">createDefaultUncaughtExceptionHandler</a></span>()</code>&nbsp;</td>
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 <tr id="i12" class="altColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.UncaughtExceptionHandler.html?is-external=true" title="class or interface in java.lang">Thread.UncaughtExceptionHandler</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#createWorkerUncaughtExceptionHandler--">createWorkerUncaughtExceptionHandler</a></span>()</code>&nbsp;</td>
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 <tr id="i13" class="rowColor">
 <td class="colFirst"><code>static &lt;T&gt;&nbsp;T</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#deserialize-byte:A-java.lang.Class-">deserialize</a></span>(byte[]&nbsp;serialized,
            <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;T&gt;&nbsp;clazz)</code>&nbsp;</td>
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 <td class="colFirst"><code>static &lt;T&gt;&nbsp;T</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#deserializeFromString-java.lang.String-java.lang.Class-">deserializeFromString</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;str,
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 <div class="block">Deserialize an object stored in a string.</div>
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 <td class="colFirst"><code>static boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#exceptionCauseIsInstanceOf-java.lang.Class-java.lang.Throwable-">exceptionCauseIsInstanceOf</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&nbsp;klass,
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 <div class="block">Checks if a throwable is an instance of a particular class.</div>
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 <td class="colFirst"><code>static void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#exitProcess-int-java.lang.String-">exitProcess</a></span>(int&nbsp;val,
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 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;</code></td>
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                   <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;configKey)</code>
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 </td>
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 <tr id="i35" class="rowColor">
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                               <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;currentClassPath)</code>
 <div class="block">Get a map of version to classpath from the conf Config.SUPERVISOR_WORKER_VERSION_CLASSPATH_MAP</div>
 </td>
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 <tr id="i36" class="altColor">
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 <div class="block">Get a map of version to worker log writer from the conf Config.SUPERVISOR_WORKER_VERSION_LOGWRITER_MAP</div>
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 <tr id="i37" class="rowColor">
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 <div class="block">Get a map of version to worker main from the conf Config.SUPERVISOR_WORKER_VERSION_MAIN_MAP</div>
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 <tr id="i42" class="altColor">
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 <tr id="i45" class="rowColor">
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 <tr id="i48" class="altColor">
 <td class="colFirst"><code>static void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#handleUncaughtException-java.lang.Throwable-java.util.Set-boolean-">handleUncaughtException</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a>&nbsp;t,
                        <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;?&gt;&gt;&nbsp;allowedExceptions,
                        boolean&nbsp;worker)</code>
 <div class="block">Handles uncaught exceptions.</div>
 </td>
 </tr>
 <tr id="i49" class="rowColor">
 <td class="colFirst"><code>static void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#handleWorkerUncaughtException-java.lang.Throwable-">handleWorkerUncaughtException</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a>&nbsp;t)</code>&nbsp;</td>
 </tr>
 <tr id="i50" class="altColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#hostname--">hostname</a></span>()</code>
 <div class="block">Gets the storm.local.hostname value, or tries to figure out the local hostname if it is not set in the config.</div>
 </td>
 </tr>
 <tr id="i51" class="rowColor">
 <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#hostnameImpl--">hostnameImpl</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i52" class="altColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/TreeMap.html?is-external=true" title="class or interface in java.util">TreeMap</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#integerDivided-int-int-">integerDivided</a></span>(int&nbsp;sum,
               int&nbsp;numPieces)</code>&nbsp;</td>
 </tr>
 <tr id="i53" class="rowColor">
 <td class="colFirst"><code>static boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#isLocalhostAddress-java.lang.String-">isLocalhostAddress</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;address)</code>&nbsp;</td>
 </tr>
 <tr id="i54" class="altColor">
 <td class="colFirst"><code>static boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#isOnWindows--">isOnWindows</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i55" class="rowColor">
 <td class="colFirst"><code>static boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#isSystemId-java.lang.String-">isSystemId</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;id)</code>&nbsp;</td>
 </tr>
 <tr id="i56" class="altColor">
 <td class="colFirst"><code>static boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#isValidConf-java.util.Map-">isValidConf</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;topoConfIn)</code>&nbsp;</td>
 </tr>
 <tr id="i57" class="rowColor">
 <td class="colFirst"><code>static boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#isValidKey-java.lang.String-">isValidKey</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;key)</code>
 <div class="block">Validates blob key.</div>
 </td>
 </tr>
 <tr id="i58" class="altColor">
 <td class="colFirst"><code>static boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#isZkAuthenticationConfiguredStormServer-java.util.Map-">isZkAuthenticationConfiguredStormServer</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;conf)</code>
 <div class="block">Is the cluster configured to interact with ZooKeeper in a secure way? This only works when called from within Nimbus or a Supervisor process.</div>
 </td>
 </tr>
 <tr id="i59" class="rowColor">
 <td class="colFirst"><code>static boolean</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#isZkAuthenticationConfiguredTopology-java.util.Map-">isZkAuthenticationConfiguredTopology</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;conf)</code>
 <div class="block">Is the topology configured to have ZooKeeper authentication.</div>
 </td>
 </tr>
 <tr id="i60" class="altColor">
 <td class="colFirst"><code>static &lt;T&gt;&nbsp;T</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#javaDeserialize-byte:A-java.lang.Class-">javaDeserialize</a></span>(byte[]&nbsp;serialized,
                <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a>&lt;T&gt;&nbsp;clazz)</code>&nbsp;</td>
 </tr>
 <tr id="i61" class="rowColor">
 <td class="colFirst"><code>static byte[]</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#javaSerialize-java.lang.Object-">javaSerialize</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;obj)</code>&nbsp;</td>
 </tr>
 <tr id="i62" class="altColor">
 <td class="colFirst"><code>static &lt;T&gt;&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#join-java.lang.Iterable-java.lang.String-">join</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true" title="class or interface in java.lang">Iterable</a>&lt;T&gt;&nbsp;coll,
     <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;sep)</code>&nbsp;</td>
 </tr>
 <tr id="i63" class="rowColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#localHostname--">localHostname</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i64" class="altColor">
 <td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#localHostnameImpl--">localHostnameImpl</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i65" class="rowColor">
 <td class="colFirst"><code>static <a href="../../../../org/apache/storm/utils/Utils.UptimeComputer.html" title="class in org.apache.storm.utils">Utils.UptimeComputer</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#makeUptimeComputer--">makeUptimeComputer</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i66" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/utils/Utils.UptimeComputer.html" title="class in org.apache.storm.utils">Utils.UptimeComputer</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#makeUptimeComputerImpl--">makeUptimeComputerImpl</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i67" class="rowColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#memoizedLocalHostname--">memoizedLocalHostname</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i68" class="altColor">
 <td class="colFirst"><code>static &lt;K,V&gt;&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;K,V&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#merge-java.util.Map-java.util.Map-">merge</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;? extends K,? extends V&gt;&nbsp;first,
      <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;? extends K,? extends V&gt;&nbsp;other)</code>&nbsp;</td>
 </tr>
 <tr id="i69" class="rowColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Runnable.html?is-external=true" title="class or interface in java.lang">Runnable</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#mkSuicideFn--">mkSuicideFn</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i70" class="altColor">
 <td class="colFirst"><code>static double</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#nullToZero-java.lang.Double-">nullToZero</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a>&nbsp;v)</code>&nbsp;</td>
 </tr>
 <tr id="i71" class="rowColor">
 <td class="colFirst"><code>static &lt;V&gt;&nbsp;V</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#OR-V-V-">OR</a></span>(V&nbsp;a,
   V&nbsp;b)</code>
 <div class="block">a or b the first one that is not null.</div>
 </td>
 </tr>
 <tr id="i72" class="altColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#parseJson-java.lang.String-">parseJson</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;json)</code>&nbsp;</td>
 </tr>
 <tr id="i73" class="rowColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#parseJvmHeapMemByChildOpts-java.util.List-java.lang.Double-">parseJvmHeapMemByChildOpts</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;options,
                           <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Double.html?is-external=true" title="class or interface in java.lang">Double</a>&nbsp;defaultValue)</code>
 <div class="block">parses the arguments to extract jvm heap memory size in MB.</div>
 </td>
 </tr>
 <tr id="i74" class="altColor">
 <td class="colFirst"><code>static org.apache.storm.shade.org.apache.zookeeper.data.Id</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#parseZkId-java.lang.String-java.lang.String-">parseZkId</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;id,
          <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;configName)</code>&nbsp;</td>
 </tr>
 <tr id="i75" class="rowColor">
 <td class="colFirst"><code>static &lt;T&gt;&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;T&gt;&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#partitionFixed-int-java.util.Collection-">partitionFixed</a></span>(int&nbsp;maxNumChunks,
               <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Collection.html?is-external=true" title="class or interface in java.util">Collection</a>&lt;T&gt;&nbsp;coll)</code>
 <div class="block">Fills up chunks out of a collection (given a maximum amount of chunks).</div>
 </td>
 </tr>
 <tr id="i76" class="altColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#processPid--">processPid</a></span>()</code>
 <div class="block">Get process PID.</div>
 </td>
 </tr>
 <tr id="i77" class="rowColor">
 <td class="colFirst"><code>static void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#readAndLogStream-java.lang.String-java.io.InputStream-">readAndLogStream</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;prefix,
                 <a href="https://docs.oracle.com/javase/8/docs/api/java/io/InputStream.html?is-external=true" title="class or interface in java.io">InputStream</a>&nbsp;in)</code>&nbsp;</td>
 </tr>
 <tr id="i78" class="altColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#readCommandLineOpts--">readCommandLineOpts</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i79" class="rowColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#readDefaultConfig--">readDefaultConfig</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i80" class="altColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#readStormConfig--">readStormConfig</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i81" class="rowColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#readYamlFile-java.lang.String-">readYamlFile</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;yamlFile)</code>&nbsp;</td>
 </tr>
 <tr id="i82" class="altColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#redactValue-java.util.Map-java.lang.String-">redactValue</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;m,
            <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;key)</code>
 <div class="block">Creates a new map with a string value in the map replaced with an equivalently-lengthed string of &lsquo;#&rsquo;.</div>
 </td>
 </tr>
 <tr id="i83" class="rowColor">
 <td class="colFirst"><code>static void</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#resetClassLoaderForJavaDeSerialize--">resetClassLoaderForJavaDeSerialize</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i84" class="altColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&gt;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/utils/Utils.html#reverseMap-java.util.List-">reverseMap</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&gt;&nbsp;listSeq)</code>
 <div class="block">&ldquo;[[:a 1] [:b 1] [:c 2]} -&gt; {1 [:a :b] 2 :c}&rdquo; Reverses an assoc-list style Map like reverseMap(Map&hellip;)</div>
 </td>
 </tr>
 <tr id="i85" class="rowColor">
 <td class="colFirst"><code>static &lt;K,V&gt;&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/HashMap.html?is-external=true" title="class or interface in java.util">HashMap</a>&lt;V,<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;K&gt;&gt;</code></td>
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 <div class="block"><p>URL encode the given string using the UTF-8 charset. Once Storm is baselined to Java 11, we can use URLEncoder.encode(String, Charset) instead, which obsoletes this method.</p></div>
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 <div class="block"><p>URL decode the given string using the UTF-8 charset. Once Storm is baselined to Java 11, we can use URLDecoder.decode(String, Charset) instead, which obsoletes this method.</p></div>
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                           <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a>&nbsp;b)</pre>
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                                                        int&nbsp;numSecs)</pre>
 <div class="block"><p>Adds the user supplied function as a shutdown hook for cleanup. Also adds a function that sleeps for numSecs and then halts the runtime to avoid any zombie process in case cleanup function hangs.</p></div>
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                                           boolean&nbsp;isDaemon,
                                           <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.UncaughtExceptionHandler.html?is-external=true" title="class or interface in java.lang">Thread.UncaughtExceptionHandler</a>&nbsp;eh,
                                           int&nbsp;priority,
                                           boolean&nbsp;isFactory,
                                           boolean&nbsp;startImmediately,
                                           <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;threadName)</pre>
 <div class="block"><p>Creates a thread that calls the given code repeatedly, sleeping for an interval of seconds equal to the return value of the previous call.</p><p><p>The given afn may be a callable that returns the number of seconds to sleep, or it may be a Callable that returns another Callable that in turn returns the number of seconds to sleep. In the latter case isFactory.</p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>afn</code> - the code to call on each iteration</dd>
 <dd><code>isDaemon</code> - whether the new thread should be a daemon thread</dd>
 <dd><code>eh</code> - code to call when afn throws an exception</dd>
 <dd><code>priority</code> - the new thread&rsquo;s priority</dd>
 <dd><code>isFactory</code> - whether afn returns a callable instead of sleep seconds</dd>
 <dd><code>startImmediately</code> - whether to start the thread before returning</dd>
 <dd><code>threadName</code> - a suffix to be appended to the thread name</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the newly created thread</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.html?is-external=true" title="class or interface in java.lang"><code>Thread</code></a></dd>
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                                           <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;threadName,
                                           <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.UncaughtExceptionHandler.html?is-external=true" title="class or interface in java.lang">Thread.UncaughtExceptionHandler</a>&nbsp;eh)</pre>
 <div class="block"><p>Convenience method used when only the function and name suffix are given.</p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>afn</code> - the code to call on each iteration</dd>
 <dd><code>threadName</code> - a suffix to be appended to the thread name</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the newly created thread</dd>
 <dt><span class="seeLabel">See Also:</span></dt>
 <dd><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Thread.html?is-external=true" title="class or interface in java.lang"><code>Thread</code></a></dd>
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 <div class="block"><p>Convenience method used when only the function is given.</p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>afn</code> - the code to call on each iteration</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the newly created thread</dd>
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                                                  <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a>&nbsp;throwable)</pre>
 <div class="block"><p>Checks if a throwable is an instance of a particular class.</p></div>
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 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>klass</code> - The class you&rsquo;re expecting</dd>
 <dd><code>throwable</code> - The throwable you expect to be an instance of klass</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>true if throwable is instance of klass, false otherwise.</dd>
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                                                         <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a>&nbsp;t)
                                                  throws T extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a></pre>
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 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code>T extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a></code></dd>
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                        throws <a href="https://docs.oracle.com/javase/8/docs/api/java/net/UnknownHostException.html?is-external=true" title="class or interface in java.net">UnknownHostException</a></pre>
 <div class="block"><p>Gets the storm.local.hostname value, or tries to figure out the local hostname if it is not set in the config.</p></div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>a string representation of the hostname.</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/net/UnknownHostException.html?is-external=true" title="class or interface in java.net">UnknownHostException</a></code></dd>
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                             throws <a href="https://docs.oracle.com/javase/8/docs/api/java/net/UnknownHostException.html?is-external=true" title="class or interface in java.net">UnknownHostException</a></pre>
 <dl>
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 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/net/UnknownHostException.html?is-external=true" title="class or interface in java.net">UnknownHostException</a></code></dd>
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 <pre>public static&nbsp;org.apache.storm.shade.org.apache.zookeeper.data.Id&nbsp;parseZkId(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;id,
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 <pre>public static&nbsp;org.apache.storm.shade.org.apache.zookeeper.data.ACL&nbsp;getSuperUserAcl(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;conf)</pre>
 <div class="block"><p>Get the ACL for nimbus/supervisor. The Super User ACL. This assumes that security is enabled.</p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>conf</code> - the config to get the super User ACL from</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the super user ACL.</dd>
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 <div class="block"><p>Get the ZK ACLs that a worker should use when writing to ZK.</p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>conf</code> - the config for the topology.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the ACLs</dd>
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 <dd><code>str</code> - the encoded string.</dd>
 <dd><code>clazz</code> - the thrift class we are expecting.</dd>
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 <div class="block"><p>Gets some information, including stack trace, for a running thread.</p></div>
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                                                                                       <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;currentClassPath)</pre>
 <div class="block"><p>Get a map of version to classpath from the conf Config.SUPERVISOR_WORKER_VERSION_CLASSPATH_MAP</p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>conf</code> - what to read it out of</dd>
 <dd><code>currentClassPath</code> - the current classpath for this version of storm (not included in the conf, but returned by this)</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the map</dd>
 </dl>
 </li>
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 <pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/NavigableMap.html?is-external=true" title="class or interface in java.util">NavigableMap</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="../../../../org/apache/storm/utils/IVersionInfo.html" title="interface in org.apache.storm.utils">IVersionInfo</a>&gt;&nbsp;getAlternativeVersionsMap(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;conf)</pre>
 <div class="block"><p>Get a mapping of the configured supported versions of storm to their actual versions.</p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>conf</code> - what to read the configuration out of.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the map.</dd>
 </dl>
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 <pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/NavigableMap.html?is-external=true" title="class or interface in java.util">NavigableMap</a>&lt;<a href="../../../../org/apache/storm/utils/SimpleVersion.html" title="class in org.apache.storm.utils">SimpleVersion</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;getConfiguredWorkerMainVersions(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;conf)</pre>
 <div class="block"><p>Get a map of version to worker main from the conf Config.SUPERVISOR_WORKER_VERSION_MAIN_MAP</p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>conf</code> - what to read it out of</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the map</dd>
 </dl>
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 <pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/NavigableMap.html?is-external=true" title="class or interface in java.util">NavigableMap</a>&lt;<a href="../../../../org/apache/storm/utils/SimpleVersion.html" title="class in org.apache.storm.utils">SimpleVersion</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;getConfiguredWorkerLogWriterVersions(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;conf)</pre>
 <div class="block"><p>Get a map of version to worker log writer from the conf Config.SUPERVISOR_WORKER_VERSION_LOGWRITER_MAP</p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>conf</code> - what to read it out of</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the map</dd>
 </dl>
 </li>
 </ul>
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 <pre>public static&nbsp;&lt;T&gt;&nbsp;T&nbsp;getCompatibleVersion(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/NavigableMap.html?is-external=true" title="class or interface in java.util">NavigableMap</a>&lt;<a href="../../../../org/apache/storm/utils/SimpleVersion.html" title="class in org.apache.storm.utils">SimpleVersion</a>,T&gt;&nbsp;versionedMap,
                                          <a href="../../../../org/apache/storm/utils/SimpleVersion.html" title="class in org.apache.storm.utils">SimpleVersion</a>&nbsp;desiredVersion,
                                          <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;what,
                                          T&nbsp;defaultValue)</pre>
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 <pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;getConfigFromClasspath(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;cp,
                                                         <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;conf)
                                                  throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
 <dl>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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 <pre>public static&nbsp;boolean&nbsp;isLocalhostAddress(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;address)</pre>
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 <pre>public static&nbsp;&lt;K,V&gt;&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;K,V&gt;&nbsp;merge(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;? extends K,? extends V&gt;&nbsp;first,
                                    <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;? extends K,? extends V&gt;&nbsp;other)</pre>
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 <pre>public static&nbsp;&lt;V&gt;&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html?is-external=true" title="class or interface in java.util">ArrayList</a>&lt;V&gt;&nbsp;convertToArray(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Integer.html?is-external=true" title="class or interface in java.lang">Integer</a>,V&gt;&nbsp;srcMap,
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                         throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
 <dl>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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 <pre>public&nbsp;<a href="../../../../org/apache/storm/utils/Utils.UptimeComputer.html" title="class in org.apache.storm.utils">Utils.UptimeComputer</a>&nbsp;makeUptimeComputerImpl()</pre>
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 <pre>protected&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;localHostnameImpl()
                             throws <a href="https://docs.oracle.com/javase/8/docs/api/java/net/UnknownHostException.html?is-external=true" title="class or interface in java.net">UnknownHostException</a></pre>
 <dl>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/net/UnknownHostException.html?is-external=true" title="class or interface in java.net">UnknownHostException</a></code></dd>
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 <pre>protected&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;hostnameImpl()
                        throws <a href="https://docs.oracle.com/javase/8/docs/api/java/net/UnknownHostException.html?is-external=true" title="class or interface in java.net">UnknownHostException</a></pre>
 <dl>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/net/UnknownHostException.html?is-external=true" title="class or interface in java.net">UnknownHostException</a></code></dd>
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 <div class="block"><p>Validates blob key.</p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>key</code> - Key for the blob.</dd>
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                                  throws <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></pre>
 <div class="block"><p>Validates topology name.</p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>name</code> - the topology name</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/IllegalArgumentException.html?is-external=true" title="class or interface in java.lang">IllegalArgumentException</a></code> - if the topology name is not valid</dd>
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 <pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&gt;&nbsp;findComponentCycles(<a href="../../../../org/apache/storm/generated/StormTopology.html" title="class in org.apache.storm.generated">StormTopology</a>&nbsp;topology,
                                                      <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;topoId)</pre>
 <div class="block"><p>Find and return components cycles in the topology graph when starting from spout. Return a list of cycles. Each cycle may consist of one or more components. Components that cannot be reached from any of the spouts are ignored.</p></div>
 <dl>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>a List of cycles. Each cycle has a list of component names.</dd>
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                               throws <a href="../../../../org/apache/storm/generated/InvalidTopologyException.html" title="class in org.apache.storm.generated">InvalidTopologyException</a></pre>
 <div class="block"><p>Validate that the topology is cycle free. If not, then throw an InvalidTopologyException describing the cycle(s).</p></div>
 <dl>
 <dt><span class="paramLabel">Parameters:</span></dt>
 <dd><code>topology</code> - StormTopology instance to examine.</dd>
 <dd><code>name</code> - Name of the topology, used in exception error message.</dd>
 <dt><span class="throwsLabel">Throws:</span></dt>
 <dd><code><a href="../../../../org/apache/storm/generated/InvalidTopologyException.html" title="class in org.apache.storm.generated">InvalidTopologyException</a></code> - if there are cycles, with message describing the cycles encountered.</dd>
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