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<h1>IKVM.NET Bytecode Compiler (ikvmc.exe)</h1>
</td>
</tr>
</table>
<p>The ikvmc tool converts Java bytecode to .NET dll's and exe's.</p>
<ul class="minitoc">
<li>
<a href="#Usage">Usage</a>
</li>
<li>
<a href="#Options">Options</a>
</li>
<li>
<a href="#Notes">Notes</a>
</li>
<li>
<a href="#Examples">Examples</a>
</li>
</ul>
<a name="N1000F"></a><a name="Usage"></a>
<h3>Usage</h3>
<div style="margin-left: 0 ; border: 2px">
<table class="ForrestTable" cellspacing="1" cellpadding="4">
<tr>
<td colspan="1" rowspan="1">
<div class="pre"> ikvmc [ <em>options</em> ] <em>classOrJarfile</em> [ <em>classOrJarfile ...</em> ]</div>
</td>
</tr>
</table>
<dl>
<dt>options</dt>
<dd>See below.</dd>
<dt>classOrJarfile</dt>
<dd>Name of a Java .class or .jar file. May contain wildcards (*.class).</dd>
</dl>
</div>
<a name="N1003A"></a><a name="Options"></a>
<h3>Options</h3>
<div style="margin-left: 0 ; border: 2px">
<table class="ForrestTable" cellspacing="1" cellpadding="4">
<tr>
<th colspan="1" rowspan="1">Option</th>
<th colspan="1" rowspan="1">Description</th>
</tr>
<tr>
<td colspan="1" rowspan="1">
-out:<em>outputfile</em>
</td>
<td colspan="1" rowspan="1">Specifies the name of the output file. Should have a .dll extension (if -target is library) or an .exe extension (if -target is exe or winexe).
In most cases, if you omit this option, ikvmc will choose an output name based on the -target and the
name of the input files. However, if you specify input files using wildcards, you must use
this option to specify the output file.</td>
</tr>
<tr>
<td colspan="1" rowspan="1">
-assembly:<em>assembly-name</em>
</td>
<td colspan="1" rowspan="1">
Specifies the name of the generated assembly. If omitted, the assembly name is (usually)
the output filename.
</td>
</tr>
<tr>
<td colspan="1" rowspan="1">
-target:<em>target-type</em>
</td>
<td colspan="1" rowspan="1">
Specifies whether to generate an .exe or .dll.
<em>target-type</em> is one of
<ul>
<li>exe - generates an executable that runs in a Windows command window</li>
<li>winexe - generates an .exe for GUI applications</li>
<li>library - generates a .dll</li>
<li>module - generates a .netmodule</li>
</ul>
<p>On Linux, there is no difference between <em>exe</em> and <em>winexe</em>.</p>
</td>
</tr>
<tr>
<td colspan="1" rowspan="1">
-keyfile:<em>keyfilename</em>
</td>
<td colspan="1" rowspan="1">
Uses <em>keyfilename</em> to sign the resulting assembly.
</td>
</tr>
<tr>
<td colspan="1" rowspan="1">
-version:M.m.b.r
</td>
<td colspan="1" rowspan="1">
Specifies the assembly version.
</td>
</tr>
<tr>
<td colspan="1" rowspan="1">
-main:<em>classname</em>
</td>
<td colspan="1" rowspan="1">
Specifies the name of the class containing the main method.
If omitted and the -target is exe or winexe, ikvmc searches
for a qualifying main method and reports if it finds one.
</td>
</tr>
<tr>
<td colspan="1" rowspan="1">
-reference:<em>library-filespec</em>
</td>
<td colspan="1" rowspan="1">
If your Java code uses .NET API's, specify the dll's using this
option. This option can appear more than once if more than one library is referenced.
Wildcards are permitted (e.g. c:\libs\*.dll).
</td>
</tr>
<tr>
<td colspan="1" rowspan="1">
-recurse:<em>filespec</em>
</td>
<td colspan="1" rowspan="1">
Processes all files matching <em>filespec</em> in and under the directory specified by
<em>filespec</em>. Example: -recurse:*.class
</td>
</tr>
<tr>
<td colspan="1" rowspan="1">
-nojni
</td>
<td colspan="1" rowspan="1">
Do not generate JNI stub for native methods
</td>
</tr>
<tr>
<td colspan="1" rowspan="1">
-resource:<em>name</em>=<em>path</em>
</td>
<td colspan="1" rowspan="1">
Includes <em>path</em> as a Java resource named <em>name</em>
</td>
</tr>
<tr>
<td colspan="1" rowspan="1">
-exclude:<em>filename</em>
</td>
<td colspan="1" rowspan="1">
<em>filename</em> is a file containing a list of classes to exclude
</td>
</tr>
<tr>
<td colspan="1" rowspan="1">
-debug
</td>
<td colspan="1" rowspan="1">
Generates debugging information in the output. Note that this is only helpful
if the .class files contain debug information (compiled with the javac -g option).
</td>
</tr>
<tr>
<td colspan="1" rowspan="1">
-srcpath:<em>path</em>
</td>
<td colspan="1" rowspan="1">
Specifies the location of source code. Use with -debug. The
package of the class is appended to the specified <em>path</em> to locate
the source code for the class.
</td>
</tr>
<tr>
<td colspan="1" rowspan="1">
-Xtrace:<em>name</em>
</td>
<td colspan="1" rowspan="1">
Displays all tracepoints with <em>name</em>
</td>
</tr>
<tr>
<td colspan="1" rowspan="1">
-Xmethodtrace:<em>methodname</em>
</td>
<td colspan="1" rowspan="1">
Builds method trace into the specified output method.
</td>
</tr>
</table>
</div>
<a name="N1016E"></a><a name="Notes"></a>
<h3>Notes</h3>
<div style="margin-left: 0 ; border: 2px">
<p>The ikvmc tool generates .NET assemblies from Java class files and jar files.
It converts the Java bytecodes in the input files to .NET CIL. Use it to produce</p>
<ul>
<li>.NET executables (-target:exe or -target:winexe)</li>
<li>.NET libraries (-target:library)</li>
<li>.NET modules (-target:module)</li>
</ul>
<p>Java applications often consist of a collection of jar files. ikvmc can process several input jar files (and class files)
and produce a single .NET executable or library. For example, an application consisting of main.jar, lib1.jar,
and lib2.jar can be converted to a single main.exe. </p>
<p>When processing multiple input jar files that contain duplicate classes / resources, ikvmc will use the first
class / resource it encounters, and ignore duplicates encountered in jars that appear later on the
command line. It will produce a warning in this case. Thus, order of jar files can be significant.</p>
<div class="frame note">
<div class="label">Note</div>
<div class="content">
When converting a Java application with ikvmc, for best results, list the jars on the ikvmc command
line in the same order that they appear in the Java application's classpath.</div>
</div>
</div>
<a name="N1018D"></a><a name="Examples"></a>
<h3>Examples</h3>
<div style="margin-left: 0 ; border: 2px">
<div class="pre">
<span class="codefrag"> ikvmc myProg.jar </span>
</div>
<p>Scans myprog.jar for a main method. If found, an .exe is produced; otherwise, a .dll is generated.
</p>
<div class="pre">
<span class="codefrag"> ikvmc -out:myapp.exe -main:org.anywhere.Main -recurse:bin\*.class lib\mylib.jar</span>
</div>
<p>Processes all .class files in and under the bin directory, and mylib.jar in the lib directory. Generates an executable
named myapp.exe using the class org.anywhere.Main as the main method.</p>
</div>
<div class="attribution"></div>
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