class Attributes: method add(Attributes other, boolean mergeOriginalAttributesSequence) throws NullPointerException

[gunterze]

Attributes#add(Attributes other, boolean mergeOriginalAttributesSequence) throws NullPointerException if (0400,0550) Modified Attributes Sequence in the source or destination data set contains items items with missing or emtpy Type 1 attribute: (0400,0562) Attribute Modification DateTime

java.lang.NullPointerException
        at java.base/java.util.TreeMap.compare(TreeMap.java:1291)
        at java.base/java.util.TreeMap.put(TreeMap.java:536)
        at org.dcm4che.core@5.20.0//org.dcm4che3.data.Attributes.mergeOriginalAttributesSequence(Attributes.java:2196)
        at org.dcm4che.core@5.20.0//org.dcm4che3.data.Attributes.add(Attributes.java:2175)
        at org.dcm4che.core@5.20.0//org.dcm4che3.data.Attributes.addAll(Attributes.java:2008)