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<title>FindBugs Optional System Properties</title>
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<h1>FindBugs Optional System Properties</h1>
<p> These system properties can be added to the command line to alter the way
findbugs works. These options should be considered experimental. The description
gives information if the field is set to true.
</p>
<table width="100%" border="1">
<tr bgColor="#F0F0F0"><th>System Property</th><th>Description</th></tr>
<tr>
<td>findbugs.assertionmethods</td>
<td>methods supplied by user that have assertions</td>
</tr>
<tr>
<td>findbugs.checkreturn.loadtraining
<br/>findbugs.checkreturn.savetraining</td>
<td>file name to read/write list of methods whose return values must be checked</td>
</tr>
<tr>
<td>findbugs.de.comment</td>
<td>Don't report empty catch blocks if a source comment is found in the block.</td>
</tr>
<tr>
<td>findbugs.dls.exclusions</td>
<td>local variables that will be excluded from Dead Local Store</td>
</tr>
<tr>
<td>findbugs.fis.unsyncFactor</td>
<td>Default value is 2.0, which means that we report a bug if more than 1/3 of accesses are unsynchronized.</td>
</tr>
<tr>
<td>findbugs.fis.writeBias</td>
<td>Default value is 2.0. The idea is that this should be above 1.0, because unsynchronized writes are more dangerous than unsynchronized reads.</td>
</tr>
<tr>
<td>fundbugs.gui.bugCount</td>
<td>?</td>
</tr>
<tr>
<td>findbugs.maskedfields.locals</td>
<td>Report on local variables that mask fields.</td>
</tr>
<tr>
<td>findbugs.nullderef.assumensp</td>
<td>sets value for IsNullValueAnalysisFeatures.UNKNOWN_VALUES_ARE_NSP, but is not used by FindBugs</td>
</tr>
<tr>
<td>findbugs.refcomp.reportAll</td>
<td>?</td>
</tr>
<tr>
<td>findbugs.report.SummaryHTML</td>
<td>emit SummaryHTML element</td>
</tr>
<tr>
<td>findbugs.sf.comment</td>
<td>Ignore switch fall thru bugs if a comment is found with 'fall' or 'nobreak'
</tr>
<tr>
<td>ba.checkAssertions</td>
<td>throw excptions on certain illegal class type signatures</td>
</tr>
<tr>
<td>ba.verifyIntegrity</td>
<td>enable data structure integrity checks</td>
</tr>
<tr>
<td>BCPMethodReturnCheck.java</td>
<td>Add methods to the list requiring a check. (format: "class:method:sig|...")</td>
</tr>
<tr>
<td>dataflow.stackonly</td>
<td>?</td>
</tr>
<tr>
<td>fis.eval</td>
<td>?</td>
</tr>
<tr>
<td>fis.noAdjustSubclass</td>
<td>Adjust field so its class name is the same as the type of reference it is accessed through.</td>
</tr>
<tr>
<td>fos.allowWUS</td>
<td>Ignore wrapping streams that are wrapping uninteresting streams (like in memory streams).</td>
</tr>
<tr>
<td>ic.createInstance</td>
<td>?</td>
</tr>
<tr>
<td>inva.ncpExtraBranch</td>
<td>?</td>
</tr>
<tr>
<td>inva.noAssertHack</td>
<td>?</td>
</tr>
<tr>
<td>inva.noSplitDowngradeNSP</td>
<td>?</td>
</tr>
<tr>
<td>inva.noSwitchDefaultAsException</td>
<td>Don't consider switch default cases as exception paths.</td>
</tr>
<tr>
<td>lineNumberBug</td>
<td>Disable the workaround for the bug in BCEL 5.0's LineNumberTable class.</td>
</tr>
<tr>
<td>ma.ugly</td>
<td>Report method signature with method class and name.</td>
</tr>
<tr>
<td>mrc.checkall</td>
<td>Check for 1.5-specific method return values being ignored even if runtime Java predates 1.5.</td>
</tr>
<tr>
<td>ta.accurateExceptions</td>
<td>?</td>
</tr>
<tr>
<td>vna.noRLE</td>
<td>Perform redundant load elimination and forward substitution (but not in a correctness-preserving way).</td>
</tr>
</table>
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