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<div class="subTitle">org.apache.shiro.util</div>
<h2 title="Class JavaEnvironment" class="title">Class JavaEnvironment</h2>
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<li>org.apache.shiro.util.JavaEnvironment</li>
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<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;
<div class="block"><span class="deprecationComment">This class is no longer used in Shiro and will be removed in the next major version.</span></div>
</div>
<br>
<pre><a href="https://docs.oracle.com/javase/6/docs/api/java/lang/Deprecated.html?is-external=true" title="class or interface in java.lang">@Deprecated</a>
public abstract class <a href="../../../../src-html/org/apache/shiro/util/JavaEnvironment.html#line.37">JavaEnvironment</a>
extends <a href="https://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
<div class="block">Internal helper class used to find the Java/JDK version
that Shiro is operating within, to allow for automatically
adapting to the present platform's capabilities.
<p>Note that Shiro does not support 1.2 or earlier JVMs - only 1.3 and later.
<p><em>This class was borrowed and heavily based upon a nearly identical version found in
the <a href="http://www.springframework.org/">Spring Framework</a>, with minor modifications.
The original author names and copyright (Apache 2.0) has been left in place. A special
thanks to Rod Johnson, Juergen Hoeller, and Rick Evans for making this available.</em></div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>0.2</dd>
</dl>
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<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_13">JAVA_13</a></span></code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Constant identifying the 1.3.x JVM (JDK 1.3).</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_14">JAVA_14</a></span></code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Constant identifying the 1.4.x JVM (J2SE 1.4).</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_15">JAVA_15</a></span></code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Constant identifying the 1.5 JVM (Java 5).</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_16">JAVA_16</a></span></code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Constant identifying the 1.6 JVM (Java 6).</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_17">JAVA_17</a></span></code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Constant identifying the 1.7 JVM.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_18">JAVA_18</a></span></code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Constant identifying the 1.8 JVM.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JavaEnvironment--">JavaEnvironment</a></span>()</code>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/shiro/util/JavaEnvironment.html#getMajorVersion--">getMajorVersion</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Get the major version code.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/6/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/shiro/util/JavaEnvironment.html#getVersion--">getVersion</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Return the full Java version string, as returned by
<code>System.getProperty("java.version")</code>.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/shiro/util/JavaEnvironment.html#isAtLeastVersion14--">isAtLeastVersion14</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Convenience method to determine if the current JVM is at least Java 1.4.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/shiro/util/JavaEnvironment.html#isAtLeastVersion15--">isAtLeastVersion15</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Convenience method to determine if the current JVM is at least
Java 1.5 (Java 5).</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/shiro/util/JavaEnvironment.html#isAtLeastVersion16--">isAtLeastVersion16</a></span>()</code>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Convenience method to determine if the current JVM is at least
Java 1.6 (Java 6).</div>
</td>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h4>JAVA_13</h4>
<pre>public static final&nbsp;int <a href="../../../../src-html/org/apache/shiro/util/JavaEnvironment.html#line.42">JAVA_13</a></pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Constant identifying the 1.3.x JVM (JDK 1.3).</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../constant-values.html#org.apache.shiro.util.JavaEnvironment.JAVA_13">Constant Field Values</a></dd>
</dl>
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<pre>public static final&nbsp;int <a href="../../../../src-html/org/apache/shiro/util/JavaEnvironment.html#line.47">JAVA_14</a></pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Constant identifying the 1.4.x JVM (J2SE 1.4).</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../constant-values.html#org.apache.shiro.util.JavaEnvironment.JAVA_14">Constant Field Values</a></dd>
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<pre>public static final&nbsp;int <a href="../../../../src-html/org/apache/shiro/util/JavaEnvironment.html#line.52">JAVA_15</a></pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Constant identifying the 1.5 JVM (Java 5).</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../constant-values.html#org.apache.shiro.util.JavaEnvironment.JAVA_15">Constant Field Values</a></dd>
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<pre>public static final&nbsp;int <a href="../../../../src-html/org/apache/shiro/util/JavaEnvironment.html#line.57">JAVA_16</a></pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Constant identifying the 1.6 JVM (Java 6).</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../constant-values.html#org.apache.shiro.util.JavaEnvironment.JAVA_16">Constant Field Values</a></dd>
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<pre>public static final&nbsp;int <a href="../../../../src-html/org/apache/shiro/util/JavaEnvironment.html#line.62">JAVA_17</a></pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Constant identifying the 1.7 JVM.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../constant-values.html#org.apache.shiro.util.JavaEnvironment.JAVA_17">Constant Field Values</a></dd>
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<pre>public static final&nbsp;int <a href="../../../../src-html/org/apache/shiro/util/JavaEnvironment.html#line.67">JAVA_18</a></pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Constant identifying the 1.8 JVM.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../constant-values.html#org.apache.shiro.util.JavaEnvironment.JAVA_18">Constant Field Values</a></dd>
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<h4>JavaEnvironment</h4>
<pre>public&nbsp;<a href="../../../../src-html/org/apache/shiro/util/JavaEnvironment.html#line.37">JavaEnvironment</a>()</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
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<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;<a href="../../../../src-html/org/apache/shiro/util/JavaEnvironment.html#line.114">getVersion</a>()</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Return the full Java version string, as returned by
<code>System.getProperty("java.version")</code>.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the full Java version string</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="https://docs.oracle.com/javase/6/docs/api/java/lang/System.html?is-external=true#getProperty-java.lang.String-" title="class or interface in java.lang"><code>System.getProperty(String)</code></a></dd>
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<pre>public static&nbsp;int&nbsp;<a href="../../../../src-html/org/apache/shiro/util/JavaEnvironment.html#line.130">getMajorVersion</a>()</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Get the major version code. This means we can do things like
<code>if (getMajorVersion() < JAVA_14)</code>.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a code comparable to the JAVA_XX codes in this class</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_13"><code>JAVA_13</code></a>,
<a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_14"><code>JAVA_14</code></a>,
<a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_15"><code>JAVA_15</code></a>,
<a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_16"><code>JAVA_16</code></a>,
<a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_17"><code>JAVA_17</code></a>,
<a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_18"><code>JAVA_18</code></a></dd>
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<pre>public static&nbsp;boolean&nbsp;<a href="../../../../src-html/org/apache/shiro/util/JavaEnvironment.html#line.145">isAtLeastVersion14</a>()</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Convenience method to determine if the current JVM is at least Java 1.4.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if the current JVM is at least Java 1.4</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../org/apache/shiro/util/JavaEnvironment.html#getMajorVersion--"><code>getMajorVersion()</code></a>,
<a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_14"><code>JAVA_14</code></a>,
<a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_15"><code>JAVA_15</code></a>,
<a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_16"><code>JAVA_16</code></a>,
<a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_17"><code>JAVA_17</code></a>,
<a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_18"><code>JAVA_18</code></a></dd>
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<h4>isAtLeastVersion15</h4>
<pre>public static&nbsp;boolean&nbsp;<a href="../../../../src-html/org/apache/shiro/util/JavaEnvironment.html#line.160">isAtLeastVersion15</a>()</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Convenience method to determine if the current JVM is at least
Java 1.5 (Java 5).</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if the current JVM is at least Java 1.5</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../org/apache/shiro/util/JavaEnvironment.html#getMajorVersion--"><code>getMajorVersion()</code></a>,
<a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_15"><code>JAVA_15</code></a>,
<a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_16"><code>JAVA_16</code></a>,
<a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_17"><code>JAVA_17</code></a>,
<a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_18"><code>JAVA_18</code></a></dd>
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<h4>isAtLeastVersion16</h4>
<pre>public static&nbsp;boolean&nbsp;<a href="../../../../src-html/org/apache/shiro/util/JavaEnvironment.html#line.177">isAtLeastVersion16</a>()</pre>
<div class="block"><span class="deprecatedLabel">Deprecated.</span>&nbsp;</div>
<div class="block">Convenience method to determine if the current JVM is at least
Java 1.6 (Java 6).</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if the current JVM is at least Java 1.6</dd>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>1.2</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../org/apache/shiro/util/JavaEnvironment.html#getMajorVersion--"><code>getMajorVersion()</code></a>,
<a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_15"><code>JAVA_15</code></a>,
<a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_16"><code>JAVA_16</code></a>,
<a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_17"><code>JAVA_17</code></a>,
<a href="../../../../org/apache/shiro/util/JavaEnvironment.html#JAVA_18"><code>JAVA_18</code></a></dd>
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