question: public CheckerMain ( final File checkerJar , final List < String > args ) { this . checkerJar = checkerJar ; final File searchPath = checkerJar . getParentFile ( ) ; this . checkerQualJar = new File ( searchPath , "checker-qual.jar" ) ; replaceShorthandProcessor ( args ) ; argListFiles = collectArgFiles ( args ) ; this . javacJar = extractFileArg ( PluginUtil . JAVAC_PATH_OPT , new File ( searchPath , "javac.jar" ) , args ) ; final String jdkJarName = PluginUtil . getJdkJarName ( ) ; this . jdkJar = extractFileArg ( PluginUtil . JDK_PATH_OPT , new File ( searchPath , jdkJarName ) , args ) ; this . compilationBootclasspath = createCompilationBootclasspath ( args ) ; this . runtimeBootClasspath = createRuntimeBootclasspath ( args ) ; this . jvmOpts = extractJvmOpts ( args ) ; this . cpOpts = createCpOpts ( args ) ; this . ppOpts = createPpOpts ( args ) ; this . toolOpts = args ; assertValidState ( ) ; }
target:  Construct all the relevant file locations and Java version given the path to this jar and a set of directories in which to search for jars.