When saving a document to pdf, in addition to taking more than 10 seconds, it ends up giving this java error. I use java 11.
java.lang.NoSuchMethodException: java.util.prefs.WindowsPreferences.WindowsRegOpenKey(int, [B, int)
at java.base/java.lang.Class.getDeclaredMethod(Class.java:2475)
at com.spire.doc.packages.sprffl.<clinit>(Unknown Source)
at com.spire.doc.packages.spraml.spr??(Unknown Source)
at com.spire.doc.packages.sprbjl.spr??(Unknown Source)
at com.spire.doc.packages.sprhel.spr??(Unknown Source)
at com.spire.doc.packages.sprhel.<clinit>(Unknown Source)
at com.spire.doc.packages.sprgxy.spr???—(Unknown Source)
at com.spire.doc.packages.sprgxy.spr–??—(Unknown Source)
at com.spire.doc.packages.sprhyaa.spr???—(Unknown Source)
at com.spire.doc.Document.spr???—(Unknown Source)
at com.spire.doc.Document.saveToFile(Unknown Source)
at nova.util.NDocTemplate.CreatePDF(NDocTemplate.java:138)
at PruebaDocTemplate.main(PruebaDocTemplate.java:65)