Exception in thread "main" java.lang.NumberFormatException: Cannot parse null string at java.base/java.lang.Long.parseLong(Long.java:674) at java.base/java.lang.Long.parseLong(Long.java:836) at org.torproject.metrics.exonerator.ExoneraTorDatabaseImporter.createLockFile(ExoneraTorDatabaseImporter.java:163) at org.torproject.metrics.exonerator.ExoneraTorDatabaseImporter.main(ExoneraTorDatabaseImporter.java:63)