#vulnerable code 
                                private boolean isParseablePhaseEvent(String line) {
        Matcher phaseStringMatcher = line != null ? PATTERN_INCLUDE_STRINGS_PHASE.matcher(line) : null;
        if (phaseStringMatcher.find()) {
            String phaseType = phaseStringMatcher.group(GROUP_DECORATORS_GC_TYPE);
            if (phaseType != null && AbstractGCEvent.Type.lookup(phaseType) != null) {
                return true;
            }
        }
        return false;
    } 
                            #location 3 
                            #vulnerability type NULL_DEREFERENCE
#fixed code
                                private boolean isParseablePhaseEvent(String line) {
        Matcher phaseStringMatcher = line != null ? PATTERN_INCLUDE_STRINGS_PHASE.matcher(line) : null;
        if (phaseStringMatcher != null && phaseStringMatcher.find()) {
            String phaseType = phaseStringMatcher.group(GROUP_DECORATORS_GC_TYPE);
            if (phaseType != null && AbstractGCEvent.Type.lookup(phaseType) != null) {
                return true;
            }
        }
        return false;
    }