question: public void removeModuleNids ( String modulename ) { HashMap < Integer , Integer > nidToAddress = moduleToNidTable . remove ( modulename ) ; if ( nidToAddress != null && overwrittenSyscalls . size ( ) > 0 ) { for ( int nid : nidToAddress . keySet ( ) ) { int syscall = nidToSyscallInternal ( nid ) ; if ( syscall != - 1 ) { overwrittenSyscalls . remove ( syscall ) ; } } } }
target:  Use this when unloading modules 