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<h2 title="Interface JavaLocation" class="title">Interface JavaLocation</h2>
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<dt>All Known Implementing Classes:</dt>
<dd><code><a href="../../j9ddr/vm29/view/dtfj/java/DTFJJavaStackFrame.html" title="class in com.ibm.j9ddr.vm29.view.dtfj.java">DTFJJavaStackFrame</a></code>, <code><a href="j9/JavaLocation.html" title="class in com.ibm.dtfj.java.j9">JavaLocation</a></code>, <code><a href="javacore/JCJavaLocation.html" title="class in com.ibm.dtfj.java.javacore">JCJavaLocation</a></code>, <code><a href="../phd/PHDCorruptJavaLocation.html" title="class in com.ibm.dtfj.phd">PHDCorruptJavaLocation</a></code>, <code><a href="../phd/PHDJavaLocation.html" title="class in com.ibm.dtfj.phd">PHDJavaLocation</a></code></dd>
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<pre>public interface <span class="typeNameLabel">JavaLocation</span></pre>
<div class="block">Represents a point of execution within a Java method.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colSecond" scope="col">Method</th>
<th class="colLast" scope="col">Description</th>
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<tr id="i0" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#equals(java.lang.Object)">equals</a></span>&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">Object</a>&nbsp;obj)</code></th>
<td class="colLast">
<div class="block">Compares the argument to the receiver, and answers true
if they represent the <em>same</em> object using a class
specific comparison.</div>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../image/ImagePointer.html" title="interface in com.ibm.dtfj.image">ImagePointer</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getAddress()">getAddress</a></span>()</code></th>
<td class="colLast">
<div class="block">Fetches the absolute address of the code which this location represents.</div>
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<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getCompilationLevel()">getCompilationLevel</a></span>()</code></th>
<td class="colLast">
<div class="block">Get the compilation level for this location.</div>
</td>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getFilename()">getFilename</a></span>()</code></th>
<td class="colLast">
<div class="block">Get the source file name.</div>
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<tr id="i4" class="altColor">
<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getLineNumber()">getLineNumber</a></span>()</code></th>
<td class="colLast">
<div class="block">Get the line number.</div>
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<td class="colFirst"><code><a href="JavaMethod.html" title="interface in com.ibm.dtfj.java">JavaMethod</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getMethod()">getMethod</a></span>()</code></th>
<td class="colLast">
<div class="block">Get the method which contains the point of execution.</div>
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<td class="colFirst"><code>int</code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hashCode()">hashCode</a></span>()</code></th>
<td class="colLast">
<div class="block">Answers an integer hash code for the receiver.</div>
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<tr id="i7" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a></code></td>
<th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toString()">toString</a></span>()</code></th>
<td class="colLast">
<div class="block">Answers a string containing a concise, human-readable
description of the receiver.</div>
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<pre class="methodSignature"><a href="../image/ImagePointer.html" title="interface in com.ibm.dtfj.image">ImagePointer</a>&nbsp;getAddress()
throws <a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></pre>
<div class="block">Fetches the absolute address of the code which this location represents.
This pointer will be contained within one of the segments returned by
getBytecodeSections() or getCompiledSections() of the method returned by
getMethod().
<p>
null may be returned, particularly for methods with no bytecode or
compiled sections (e.g. some native methods)
<p>
Although an offset into the method may be calculated using this
pointer, caution should be exercised in attempting to map this offset to
an offset within the original class file. Various transformations may
have been applied to the bytecodes by the VM or other agents which may
make the offset difficult to interpret.
<p>
For native methods, the address may be meaningless.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the address in memory of the managed code</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd>
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<h4>getLineNumber</h4>
<pre class="methodSignature">int&nbsp;getLineNumber()
throws <a href="../image/DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a>,
<a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></pre>
<div class="block">Get the line number.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the line number, if available, or throws DataUnavailable if it is not available
Line numbers are counted from 1</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../image/DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a></code> - if the line number data is not available for this location</dd>
<dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd>
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<h4>getFilename</h4>
<pre class="methodSignature"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;getFilename()
throws <a href="../image/DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a>,
<a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></pre>
<div class="block">Get the source file name.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the name of the source file, if available, or throws DataUnavailable if it is
not available</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../image/DataUnavailable.html" title="class in com.ibm.dtfj.image">DataUnavailable</a></code> - if the source file name is unavailable in the core</dd>
<dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd>
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<h4>getCompilationLevel</h4>
<pre class="methodSignature">int&nbsp;getCompilationLevel()
throws <a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></pre>
<div class="block">Get the compilation level for this location. This is an implementation
defined number indicating the level at which the current location was
compiled. 0 indicates interpreted. Any positive number indicates some
level of JIT compilation. Typically, higher numbers indicate more
aggressive compilation strategies
<p>
For native methods, a non-zero compilation level indicates that some
level of JIT compilation has been applied to the native call (e.g. a
custom native call stub). To determine if the method is native, use
getMethod().getModifiers().</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the compilation level</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd>
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<h4>getMethod</h4>
<pre class="methodSignature"><a href="JavaMethod.html" title="interface in com.ibm.dtfj.java">JavaMethod</a>&nbsp;getMethod()
throws <a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></pre>
<div class="block">Get the method which contains the point of execution.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the method which contains the point of execution</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="../image/CorruptDataException.html" title="class in com.ibm.dtfj.image">CorruptDataException</a></code></dd>
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<h4>toString</h4>
<pre class="methodSignature"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">String</a>&nbsp;toString()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang" class="externalLink" target="_blank">java.lang.Object</a></code></span></div>
<div class="block">Answers a string containing a concise, human-readable
description of the receiver.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang" class="externalLink" target="_blank">toString</a></code>&nbsp;in class&nbsp;<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">Object</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>A string representing the location as it would be seen in a Java stack trace</dd>
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<h4>equals</h4>
<pre class="methodSignature">boolean&nbsp;equals&#8203;(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">Object</a>&nbsp;obj)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink" target="_blank">java.lang.Object</a></code></span></div>
<div class="block">Compares the argument to the receiver, and answers true
if they represent the <em>same</em> object using a class
specific comparison. The implementation in Object answers
true only if the argument is the exact same object as the
receiver (==).</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink" target="_blank">equals</a></code>&nbsp;in class&nbsp;<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">Object</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>obj</code> - </dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>True if the given object refers to the same Java Location in the image</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang" class="externalLink" target="_blank"><code>Object.hashCode()</code></a></dd>
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<h4>hashCode</h4>
<pre class="methodSignature">int&nbsp;hashCode()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang" class="externalLink" target="_blank">java.lang.Object</a></code></span></div>
<div class="block">Answers an integer hash code for the receiver. Any two
objects which answer <code>true</code> when passed to
<code>.equals</code> must answer the same value for this
method.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang" class="externalLink" target="_blank">hashCode</a></code>&nbsp;in class&nbsp;<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink" target="_blank">Object</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the receiver's hash.</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink" target="_blank"><code>Object.equals(java.lang.Object)</code></a></dd>
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