INFO org.docx4j.model.datastorage.migration.VariablePrepare .prepare line 83 - Modeling Overview: MERGEFIELD activity_desc \* MERGEFORMAT «activity_desc» org.docx4j.wml.FldChar org.docx4j.wml.FldChar org.docx4j.wml.FldChar INFO org.docx4j.model.datastorage.migration.VariablePrepare .prepare line 94 - Modeling Overview: MERGEFIELD activity_desc \* MERGEFORMAT «activity_desc» INFO org.docx4j.model.fields.merge.MailMerger .performOnInstance line 443 - Found 1 fields java.lang.NullPointerException at org.docx4j.model.fields.FieldRef.getInstr(FieldRef.java:311) at org.docx4j.model.fields.merge.MailMerger.performOnInstance(MailMerger.java:468) at org.docx4j.model.fields.merge.MailMerger.performMerge(MailMerger.java:365) at local.test.MyTest.main(MyTest.java:39)