I think only poi 4.0 officially supports JDK 8 only and not JDK7 anymore. Poi 3.17 supports 6,7,8.
I am not sure if Poi is jdk 9 ready rested yet. Maybe the upcoming release 4.0 will be but the release manager can give you some definitive answer. Do you need any specific jdk9 feature ? > On 7. Feb 2018, at 13:15, Markus Sandmann <masan...@gmail.com> wrote: > > Hi there, > > currently I try to migrate my Projects to the latest JDK9 as well as > updating used libaries like apache poi. > Comming from v3.14 and JDK7 I have a strange problem that i can't find the > solution to: > > After updating apache poi I had to adjust some parts of my code because of > deprecated/removed functions. (Migration to the new Color and FillPattern > enums for example). > > This step works just fine. After that I started the migration from JDK7 to > JDK9. As soon as i switch die compiler level and system library to jdk9 > some of the Apache POI classes become unresolveable and/or unaccessible. > > I already have a StackOverFlow post concerning this matter here with more > details: > https://stackoverflow.com/questions/48640064/migrating-apache-poi-3-14-to-3-17-and-jdk9 > > The offending classes are: > > import org.apache.poi.ss.usermodel.Row; > import org.apache.poi.xssf.usermodel.XSSFColor; > import org.apache.poi.xssf.usermodel.XSSFFont; > import org.apache.poi.xssf.usermodel.XSSFWorkbook; > > All result in either "cannot be resolved" or "is not accessible" depending > on whether i do a rebuild or a save after edit (which is strange and might > be an eclipse bug?). > > Other imports from the library like: > import org.apache.poi.ss.usermodel.BorderStyle; > import org.apache.poi.ss.usermodel.Cell; > import org.apache.poi.ss.usermodel.FillPatternType; > import org.apache.poi.ss.usermodel.IndexedColors; > import org.apache.poi.xssf.usermodel.XSSFCellStyle; > import org.apache.poi.xssf.usermodel.XSSFSheet; > > work just fine. > > When I switch the project back to JDK7 without touching any code the stuff > compiles again just fine. > > What's wrong here? > > Greetings, > Markus --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@poi.apache.org For additional commands, e-mail: user-h...@poi.apache.org
