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<head><title>Debugging</title>
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<h3 class="sectionHead"><span class="titlemark">11 </span> <a
id="x35-3700011"></a>Debugging</h3>
<!--l. 893--><p class="noindent" >It is possible to enable debugging in the library. This will be a lot slower, but can print a lot of
useful information for debugging your program.
</p><!--l. 896--><p class="indent" > To enable a debug build compile with <span
class="cmtt-12">DEBUG=enable</span>. This will then need to be enabled at
runtime by using the debug jar with debugging enabled (usually installed as debug-enable.jar
alongside the normal jar).
</p><!--l. 900--><p class="indent" > Running a program which uses this library will print some informative messages. More
verbose debug information can be got by supplying a custom debug configuration file. This
should be placed in the file <span
class="cmtt-12">debug.conf </span>and has the format:
</p>
<div class="verbatim" id="verbatim-27">
classname = LEVEL
</div>
<!--l. 907--><p class="nopar" >
</p><!--l. 909--><p class="indent" > Where <span
class="cmtt-12">classname </span>is either the special word <span
class="cmtt-12">ALL </span>or a full class name like
<span
class="cmtt-12">org.freedesktop.dbus </span>and <span
class="cmtt-12">LEVEL </span>is one of <span
class="cmtt-12">NONE</span>, <span
class="cmtt-12">CRIT</span>, <span
class="cmtt-12">ERR</span>, <span
class="cmtt-12">WARN</span>, <span
class="cmtt-12">INFO</span>, <span
class="cmtt-12">DEBUG</span>, <span
class="cmtt-12">VERBOSE</span>,
<span
class="cmtt-12">YES</span>, <span
class="cmtt-12">ALL </span>or <span
class="cmtt-12">TRUE</span>. This will set the debug level for a particular class. Any messages from
that class at that level or higher will be printed. Verbose debugging is extremely
verbose.
</p><!--l. 916--><p class="indent" > In addition, setting the environment variable <span
class="cmtt-12">DBUS</span><span
class="cmtt-12">_JAVA</span><span
class="cmtt-12">_EXCEPTION</span><span
class="cmtt-12">_DEBUG </span>will
cause all exceptions which are handled internally to have their stack trace printed
when they are handled. This will happen unless debugging has been disabled for that
class.
</p>
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