protonj2/src/main/java/org/apache/qpid/protonj2/types/transport/Attach.java [98:125]:
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        if (offeredCapabilities != null) {
            copy.offeredCapabilities = Arrays.copyOf(offeredCapabilities, offeredCapabilities.length);
        }
        if (desiredCapabilities != null) {
            copy.desiredCapabilities = Arrays.copyOf(desiredCapabilities, desiredCapabilities.length);
        }
        if (properties != null) {
            copy.properties = new LinkedHashMap<>(properties);
        }

        copy.modified = modified;

        return copy;
    }

    //----- Query the state of the Header object -----------------------------//

    public boolean isEmpty() {
        return modified == 0;
    }

    public int getElementCount() {
        return 32 - Integer.numberOfLeadingZeros(modified);
    }

    public boolean hasElement(int index) {
        final int value = 1 << index;
        return (modified & value) == value;
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protonj2/src/main/java/org/apache/qpid/protonj2/types/transport/Begin.java [75:101]:
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        if (offeredCapabilities != null) {
            copy.offeredCapabilities = Arrays.copyOf(offeredCapabilities, offeredCapabilities.length);
        }
        if (desiredCapabilities != null) {
            copy.desiredCapabilities = Arrays.copyOf(desiredCapabilities, desiredCapabilities.length);
        }
        if (properties != null) {
            copy.properties = new LinkedHashMap<>(properties);
        }
        copy.modified = modified;

        return copy;
    }

    //----- Query the state of the Header object -----------------------------//

    public boolean isEmpty() {
        return modified == 0;
    }

    public int getElementCount() {
        return 32 - Integer.numberOfLeadingZeros(modified);
    }

    public boolean hasElement(int index) {
        final int value = 1 << index;
        return (modified & value) == value;
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