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9.7 KiB
HTML
150 lines
9.7 KiB
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<meta name="DC.Title" content="Using QIBM_JAVA_PASE_CHILD_STARTUP" />
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<meta name="abstract" content="The QIBM_JAVA_PASE_CHILD_STARTUP environment variable indicates the i5/OS PASE startup program for any secondary JVMs." />
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<title>Using QIBM_JAVA_PASE_CHILD_STARTUP</title>
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<body id="rzahapaseexmplschildstartup"><a name="rzahapaseexmplschildstartup"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Using QIBM_JAVA_PASE_CHILD_STARTUP</h1>
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<div><p>The QIBM_JAVA_PASE_CHILD_STARTUP environment variable indicates
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the <span class="keyword">i5/OS™</span> PASE startup
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program for any secondary JVMs.</p>
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<p>Use QIBM_JAVA_PASE_CHILD_STARTUP when all of the following conditions are
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true: </p>
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<ul><li>The Java™ application that you want to run creates Java virtual
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machines (JVMs) through Java calls to Runtime.exec()</li>
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<li>Both the primary and secondary JVMs use <span class="keyword">i5/OS</span> PASE
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native methods</li>
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<li>The <span class="keyword">i5/OS</span> PASE environment
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of the secondary JVMs must be different than the <span class="keyword">i5/OS</span> PASE
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environment of the primary JVM</li>
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</ul>
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<p> When all of the previously listed conditions are true, perform the following
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actions:</p>
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<ul><li>Set the QIBM_JAVA_PASE_CHILD_STARTUP environment variable to the <span class="keyword">i5/OS</span> PASE startup program of the
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secondary JVMs.</li>
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<li>When starting the primary JVM from an iSeries™ command prompt or Qshell command
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prompt, set the QIBM_JAVA_PASE_STARTUP environment variable to the <span class="keyword">i5/OS</span> PASE startup program of the
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primary JVM. <div class="note"><span class="notetitle">Note:</span> When starting the primary JVM from an <span class="keyword">i5/OS</span> PASE
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terminal session, do not set QIBM_JAVA_PASE_STARTUP.</div>
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</li>
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</ul>
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<p> The process of the secondary JVM inherits the QIBM_JAVA_PASE_CHILD_STARTUP
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environment variable. In addition, <span class="keyword">i5/OS</span> sets
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the QIBM_JAVA_PASE_STARTUP environment variable of the secondary JVM process
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to the value of the QIBM_JAVA_PASE_CHILD_STARTUP environment variable from
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the parent process.</p>
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<p>The following table identifies the resulting <span class="keyword">i5/OS</span> PASE
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environments (if any) for the various combinations of command environments
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and definitions of QIBM_JAVA_PASE_STARTUP and QIBM_JAVA_PASE_CHILD_STARTUP:</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="border" border="1" rules="all"><caption>Table 1. Resulting PASE environments for QIBM_JAVA_PASE_STARTUP
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and QIBM_JAVA_PASE_CHILD_STARTUP</caption><thead align="left"><tr valign="bottom"><th colspan="3" align="center" valign="bottom" id="d0e94">Starting environment</th>
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<th colspan="2" align="center" valign="bottom" id="d0e96">Resulting behavior</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" width="19.71252566735113%" headers="d0e94 "><strong>Command environment</strong></td>
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<td valign="top" width="21.149897330595483%" headers="d0e94 "><strong>QIBM_JAVA _PASE_STARTUP </strong></td>
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<td valign="top" width="19.301848049281315%" headers="d0e94 "><strong>Primary JVM <span class="keyword">i5/OS</span> PASE
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Startup</strong></td>
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<td valign="top" width="19.917864476386036%" headers="d0e96 "><strong>Primary JVM <span class="keyword">i5/OS</span> PASE
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Startup </strong></td>
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<td valign="top" width="19.917864476386036%" headers="d0e96 "><strong>Secondary JVM <span class="keyword">i5/OS</span> PASE
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Startup </strong></td>
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</tr>
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<tr valign="middle"><td valign="middle" width="19.71252566735113%" headers="d0e94 ">CL or QSH</td>
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<td valign="middle" width="21.149897330595483%" headers="d0e94 ">Defined startX</td>
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<td valign="middle" width="19.301848049281315%" headers="d0e94 ">Defined startY</td>
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<td valign="middle" width="19.917864476386036%" headers="d0e96 ">Use startX</td>
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<td valign="middle" width="19.917864476386036%" headers="d0e96 ">Use startY</td>
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</tr>
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<tr valign="middle"><td valign="middle" width="19.71252566735113%" headers="d0e94 ">CL or QSH</td>
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<td valign="middle" width="21.149897330595483%" headers="d0e94 ">Defined startX</td>
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<td valign="middle" width="19.301848049281315%" headers="d0e94 ">Not defined</td>
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<td valign="middle" width="19.917864476386036%" headers="d0e96 ">Use startX</td>
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<td valign="middle" width="19.917864476386036%" headers="d0e96 ">Use startX</td>
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</tr>
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<tr valign="middle"><td valign="middle" width="19.71252566735113%" headers="d0e94 ">CL or QSH</td>
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<td valign="middle" width="21.149897330595483%" headers="d0e94 ">Not defined</td>
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<td valign="middle" width="19.301848049281315%" headers="d0e94 ">Defined startY</td>
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<td valign="middle" width="19.917864476386036%" headers="d0e96 ">No <span class="keyword">i5/OS</span> PASE
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environment</td>
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<td valign="middle" width="19.917864476386036%" headers="d0e96 ">Use startY</td>
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</tr>
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<tr valign="middle"><td valign="middle" width="19.71252566735113%" headers="d0e94 ">CL or QSH</td>
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<td valign="middle" width="21.149897330595483%" headers="d0e94 ">Not defined</td>
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<td valign="middle" width="19.301848049281315%" headers="d0e94 ">Not defined</td>
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<td valign="middle" width="19.917864476386036%" headers="d0e96 ">No <span class="keyword">i5/OS</span> PASE
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environment</td>
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<td valign="middle" width="19.917864476386036%" headers="d0e96 ">No <span class="keyword">i5/OS</span> PASE
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environment</td>
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</tr>
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<tr valign="middle"><td valign="middle" width="19.71252566735113%" headers="d0e94 "><span class="keyword">i5/OS</span> PASE
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terminal session</td>
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<td valign="middle" width="21.149897330595483%" headers="d0e94 ">Defined startX</td>
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<td valign="middle" width="19.301848049281315%" headers="d0e94 ">Defined startY</td>
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<td valign="middle" width="19.917864476386036%" headers="d0e96 ">Not allowed*</td>
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<td valign="middle" width="19.917864476386036%" headers="d0e96 ">Not allowed*</td>
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</tr>
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<tr valign="middle"><td valign="middle" width="19.71252566735113%" headers="d0e94 "><span class="keyword">i5/OS</span> PASE
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terminal session</td>
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<td valign="middle" width="21.149897330595483%" headers="d0e94 ">Defined startX</td>
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<td valign="middle" width="19.301848049281315%" headers="d0e94 ">Not defined</td>
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<td valign="middle" width="19.917864476386036%" headers="d0e96 ">Not allowed*</td>
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<td valign="middle" width="19.917864476386036%" headers="d0e96 ">Not allowed*</td>
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</tr>
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<tr valign="middle"><td valign="middle" width="19.71252566735113%" headers="d0e94 "><span class="keyword">i5/OS</span> PASE
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terminal session</td>
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<td valign="middle" width="21.149897330595483%" headers="d0e94 ">Not defined</td>
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<td valign="middle" width="19.301848049281315%" headers="d0e94 ">Defined startY</td>
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<td valign="middle" width="19.917864476386036%" headers="d0e96 ">Use <span class="keyword">i5/OS</span> PASE
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terminal session environment</td>
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<td valign="middle" width="19.917864476386036%" headers="d0e96 ">Use startY</td>
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</tr>
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<tr valign="middle"><td valign="middle" width="19.71252566735113%" headers="d0e94 "><span class="keyword">i5/OS</span> PASE
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terminal session</td>
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<td valign="middle" width="21.149897330595483%" headers="d0e94 ">Not defined</td>
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<td valign="middle" width="19.301848049281315%" headers="d0e94 ">Not defined</td>
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<td valign="middle" width="19.917864476386036%" headers="d0e96 ">Use <span class="keyword">i5/OS</span> PASE
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terminal session environment</td>
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<td valign="middle" width="19.917864476386036%" headers="d0e96 ">No <span class="keyword">i5/OS</span> PASE
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environment</td>
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</tr>
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</tbody>
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</table>
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</div>
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<p>* The rows marked "Not allowed" indicate situations where the QIBM_JAVA_PASE_STARTUP
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environment variable could conflict with the <span class="keyword">i5/OS</span> PASE
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terminal session. Because of the potential conflict, using QIBM_JAVA_PASE_STARTUP
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is not allowed from an <span class="keyword">i5/OS</span> PASE
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terminal session.</p>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzahapasejavaenvvariables.htm" title="The Java virtual machine (JVM) uses the following variables to start i5/OS PASE environments. You need to set the QIBM_JAVA_PASE_STARTUP variable in order to run the IBM i5/OS PASE native method for Java example.">Java i5/OS PASE environment variables</a></div>
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</div>
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</div>
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</body>
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</html>
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