111 lines
7.0 KiB
HTML
111 lines
7.0 KiB
HTML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Support for multiple Java 2 Software Development Kits" />
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<meta name="abstract" content="Your iSeries server supports multiple versions of the Java Development Kits (JDKs) and the Java 2 Software Development Kit (J2SDK), Standard Edition." />
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<meta name="description" content="Your iSeries server supports multiple versions of the Java Development Kits (JDKs) and the Java 2 Software Development Kit (J2SDK), Standard Edition." />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2006" />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Support for multiple Java 2 Software Development Kits</title>
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</head>
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<body id="multjdk"><a name="multjdk"><!-- --></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">Support for multiple Java 2 Software Development Kits</h1>
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<div><p>Your iSeries™ server
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supports multiple versions of the Java™ Development Kits (JDKs) and the Java 2
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Software Development Kit (J2SDK), Standard Edition.</p>
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<div class="note"><span class="notetitle">Note:</span> In this documentation, depending on the context, the term JDK refers
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to any supported version of the JDK and J2SDK. Usually, the context in which
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JDK occurs includes a reference to the specific version and release number. </div>
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<p>Your iSeries server
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supports using multiple JDKs simultaneously, but only through multiple Java virtual
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machines. A single Java virtual machine runs one specified
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JDK.</p>
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<p>Find the JDK that you are using or want to use, and select the coordinating
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option to install. See <a href="install.htm">Install IBM Developer Kit for Java</a> to install more than
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one JDK at one time. The java.version system property determines which JDK
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to run. Once a Java virtual machine is up and running, changing the
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java.version system property has no effect.</p>
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<p><strong>Note:</strong> In V5R3 and later, the following options are no longer available:
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Option 1 (JDK 1.1.6), Option 2 (JDK 1.1.7), Option 3 (JDK 1.2.2), and Option
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4 (JDK 1.1.8). The following table lists the supported J2SDKs for this release.</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="border" border="1" rules="all"><thead align="left"><tr><th align="left" valign="top" width="10%" id="d0e57">Option</th>
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<th align="left" valign="top" width="22.05128205128205%" id="d0e59">JDK</th>
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<th align="left" valign="top" width="45.64102564102564%" id="d0e61">java.home</th>
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<th align="left" valign="top" width="22.30769230769231%" id="d0e63">java.version</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" width="10%" headers="d0e57 ">5</td>
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<td valign="top" width="22.05128205128205%" headers="d0e59 ">1.3</td>
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<td valign="top" width="45.64102564102564%" headers="d0e61 ">/QIBM/ProdData/Java400/jdk13/</td>
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<td valign="top" width="22.30769230769231%" headers="d0e63 ">1.3</td>
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</tr>
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<tr><td valign="top" width="10%" headers="d0e57 ">6</td>
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<td valign="top" width="22.05128205128205%" headers="d0e59 ">1.4</td>
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<td valign="top" width="45.64102564102564%" headers="d0e61 ">/QIBM/ProdData/Java400/jdk14/</td>
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<td valign="top" width="22.30769230769231%" headers="d0e63 ">1.4</td>
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</tr>
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<tr><td valign="top" width="10%" headers="d0e57 "><img src="./delta.gif" alt="Start of change" />7<img src="./deltaend.gif" alt="End of change" /></td>
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<td valign="top" width="22.05128205128205%" headers="d0e59 "><img src="./delta.gif" alt="Start of change" />1.5 (also referred to as J2SE 5.0)<img src="./deltaend.gif" alt="End of change" /></td>
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<td valign="top" width="45.64102564102564%" headers="d0e61 "><img src="./delta.gif" alt="Start of change" />/QIBM/ProdData/Java400/jdk15/<img src="./deltaend.gif" alt="End of change" /></td>
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<td valign="top" width="22.30769230769231%" headers="d0e63 "><img src="./delta.gif" alt="Start of change" />1.5<img src="./deltaend.gif" alt="End of change" /></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 default JDK chosen in this multiple JDK environment depends on which
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5722-JV1 Options are installed. The following table gives some examples.</p>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="border" border="1" rules="all"><thead align="left"><tr><th align="left" valign="top" id="d0e102">Install</th>
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<th align="left" valign="top" id="d0e104">Enter</th>
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<th align="left" valign="top" id="d0e106">Result</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" headers="d0e102 ">Option 5 (1.3)</td>
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<td valign="top" headers="d0e104 "><samp class="codeph">java Hello</samp></td>
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<td valign="top" headers="d0e106 ">J2SDK, Standard Edition, version 1.3 runs.</td>
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</tr>
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<tr><td valign="top" headers="d0e102 ">Option 6 (1.4)</td>
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<td valign="top" headers="d0e104 "><samp class="codeph">java Hello</samp></td>
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<td valign="top" headers="d0e106 ">J2SDK, Standard Edition, version 1.4 runs.</td>
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</tr>
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<tr><td valign="top" headers="d0e102 ">Option 5 (1.3) and Option 6 (1.4)</td>
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<td valign="top" headers="d0e104 "><samp class="codeph">java Hello</samp></td>
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<td valign="top" headers="d0e106 ">J2SDK, Standard Edition, version 1.4 runs.</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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<div class="note"><span class="notetitle">Note:</span> If you install only one JDK, the default JDK is the one you installed.
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If you install more than one JDK, the following order of precedence determines
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the default JDK:<ol><li>Option 6 (1.4)</li>
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<li>Option 5 (1.3)</li>
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<li><img src="./delta.gif" alt="Start of change" />Option 7 (1.5)<img src="./deltaend.gif" alt="End of change" /></li>
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</ol>
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</div>
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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="install.htm" title="Installing IBM Developer Kit for Java allows you to create and run Java programs on your iSeries server.">Install IBM Developer Kit for Java</a></div>
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</div>
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</div>
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</body>
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</html> |