private void formatState()

in log4j-core/src/main/java/org/apache/logging/log4j/core/message/ExtendedThreadInformation.java [109:176]
68 lines of code
18 McCabe index (conditional complexity)

    private void formatState(final StringBuilder sb, final ThreadInfo info) {
        final Thread.State state = info.getThreadState();
        sb.append(state);
        switch (state) {
            case BLOCKED: {
                sb.append(" (on object monitor owned by \"");
                sb.append(info.getLockOwnerName())
                        .append("\" Id=")
                        .append(info.getLockOwnerId())
                        .append(')');
                break;
            }
            case WAITING: {
                final StackTraceElement element = info.getStackTrace()[0];
                final String className = element.getClassName();
                final String method = element.getMethodName();
                if (className.equals("java.lang.Object") && method.equals("wait")) {
                    sb.append(" (on object monitor");
                    if (info.getLockOwnerName() != null) {
                        sb.append(" owned by \"");
                        sb.append(info.getLockOwnerName()).append("\" Id=").append(info.getLockOwnerId());
                    }
                    sb.append(')');
                } else if (className.equals("java.lang.Thread") && method.equals("join")) {
                    sb.append(" (on completion of thread ")
                            .append(info.getLockOwnerId())
                            .append(')');
                } else {
                    sb.append(" (parking for lock");
                    if (info.getLockOwnerName() != null) {
                        sb.append(" owned by \"");
                        sb.append(info.getLockOwnerName()).append("\" Id=").append(info.getLockOwnerId());
                    }
                    sb.append(')');
                }
                break;
            }
            case TIMED_WAITING: {
                final StackTraceElement element = info.getStackTrace()[0];
                final String className = element.getClassName();
                final String method = element.getMethodName();
                if (className.equals("java.lang.Object") && method.equals("wait")) {
                    sb.append(" (on object monitor");
                    if (info.getLockOwnerName() != null) {
                        sb.append(" owned by \"");
                        sb.append(info.getLockOwnerName()).append("\" Id=").append(info.getLockOwnerId());
                    }
                    sb.append(')');
                } else if (className.equals("java.lang.Thread") && method.equals("sleep")) {
                    sb.append(" (sleeping)");
                } else if (className.equals("java.lang.Thread") && method.equals("join")) {
                    sb.append(" (on completion of thread ")
                            .append(info.getLockOwnerId())
                            .append(')');
                } else {
                    sb.append(" (parking for lock");
                    if (info.getLockOwnerName() != null) {
                        sb.append(" owned by \"");
                        sb.append(info.getLockOwnerName()).append("\" Id=").append(info.getLockOwnerId());
                    }
                    sb.append(')');
                }
                break;
            }
            default:
                break;
        }
    }