Bug? MakeB4XLib - Building libraries by ZIP4j

[T201016]

Hello everyone,

I use in the project:
#AdditionalJar: zip4j-1.3.2 or alternatively zip4j-2.7.0

# AD1 - #AdditionalJar: zip4j-1.3.2
Performing the MakeB4XLIB function creates the .b4xlib library OK,
but I get a message when I open B4J Source code:

# AD2 - #AdditionalJar: zip4j-2.7.0
When performing the MakeB4XLIB function
I get the message:

My question:
- Is there another working version of zip4j?
Any ideas will be appreciated

#Region MakeB4XLib
Sub MakeB4XLIB (inDir As String, outDir As String, zipFilename As String) As ResumableSub
Try
    If File.Exists(outDir,zipFilename) Then
        File.Delete(outDir,zipFilename)
    Else
        If inDir.Length = 0 Or outDir.Length = 0 Or zipFilename.Length = 0 Then
            cutils.ShowNotification3("WARNING !", "Fill out the fields required.", cutils.ICON_WARNING, MainForm, "BOTTOM_RIGHT", 2000)
            TextField3.RequestFocus
            Return False
        End If
    End If
 
    Dim zipFile As JavaObject
    zipFile.InitializeNewInstance("net.lingala.zip4j.core.ZipFile",Array(File.Combine(outDir,zipFilename)))
    Dim constants As JavaObject
    constants.InitializeStatic("net.lingala.zip4j.util.Zip4jConstants")
    Dim params As JavaObject
    params.InitializeNewInstance("net.lingala.zip4j.model.ZipParameters",Null)
    params.RunMethod("setCompressionMethod",Array(constants.GetField("COMP_DEFLATE")))
    params.RunMethod("setCompressionLevel",Array(constants.GetField("DEFLATE_LEVEL_NORMAL")))
 
    For Each ci As CheckboxTreeItem In tvFiles.Root.Children
        If ci.Checked Then
            Dim tmpFileName As String = ci.Text.tolowercase
            Dim path As String
            path=File.Combine(TextField1.Text,ci.Text)
            If File.IsDirectory(TextField1.Text,ci.Text) And tmpFileName = "files" Then
                zipFile.RunMethod("addFolder",Array(path,params))
            Else
                If tmpFileName.EndsWith(".bas") Or tmpFileName = "manifest.txt" Then
                    zipFile.RunMethod("addFile",Array(getFile(path),params))
                End If
            End If
        End If
    Next
    Return True
Catch
    cutils.ShowNotification3("ERROR !", LastException.Message, cutils.ICON_ERROR, MainForm, "BOTTOM_RIGHT", 10000)
    Return False
End Try
End Sub

Sub getFile (path As String) As JavaObject
    Dim fileJO As JavaObject
    fileJO.InitializeNewInstance("java.io.File", Array(path))
    Return fileJO
End Sub
#End Region

 

[stevel05]

I had a similar problem when trying to automate the building of B4xLibs. See my thread here.

The only ways I found that would work was to either use the JDK as Erel suggested, or call 7zip from the shell (may also work with outer external zip apps but I didn't try any others).

The internal libraries I tried all failed when zipping layout files.

I ended up preferring the JDK option and use this sub to check that it exists:

Public Sub JDKPathExists As Boolean
    Dim jHome As String = GetSystemProperty("java.home", "")
    Log(jHome)
    If File.Exists(jHome, "..\bin\jar.exe") Then
        JDKPath = File.Combine(jHome, "..\bin\jar.exe")
        Return True
    Else
        If jHome.EndsWith("jre") = False Then
            jHome = jHome.Replace("jre","jdk")
        End If
        Log("Exists " & File.Combine(File.Combine(jHome,"bin"),"jar.exe") & " : " &  File.Exists(File.Combine(jHome,"bin"),"jar.exe"))
        If File.Exists(File.Combine(jHome,"bin"),"jar.exe") Then
            JDKPath = File.Combine(jHome, "bin/jar.exe")
            Return True
        End If
    End If
    Return False
End Sub

Where jdkpath is a global variable pointing to jar.exe.

Otherwise 7Zip had to be installed

Caveat: I did only run it under java 8 and have not tried under java 11 so may not be too much use to you.

You can see the full code in situ in my project here: https://www.b4x.com/android/forum/threads/create-b4xlib-files-from-projects.111536/

 

[T201016]

Hi, @stevel05
Thank you very much for the professional hint. I will definitely use your beaten paths to solve the above problem. Older versions of zip4J don't work properly, breaking even uncompressed layouts. I figured this out when I manually backed up my files with a regular archiver on hand (it wasn't even Zip7, and the library was working. Zip4J has a specific compression and is not very good for creating our libraries.

I will try both and leave the one that suits me best. Thanks again.