Jetbrains Java Console Decompiler

Start-ConsoleDecompiler.ps1

$basePath =  "C:\src\runtimeService-unpacked" 
$targetPath = "c:\src\decompile"

$decompilerPath =  "C:/Program Files/JetBrains/IntelliJ IDEA 2019.2.3/plugins/java-decompiler/lib/java-decompiler.jar"
$decompilerClass = "org.jetbrains.java.decompiler.main.decompiler.ConsoleDecompiler"


Get-ChildItem $basePath *.class -Recurse | ForEach-Object {     
    java -cp $decompilerPath $decompilerClass `
    -hdc=0 -dgs=1 -rsy=1 -rbr=1 -lit=1 -nls=1 -mpm=60 `
    $_.FullName (split-path $_.FullName  -Parent)
}

# copy decompiled code to destination
Copy-Item $basePath -filter *.java -Recurse -Destination $targetPath

# remove decompiled code in base dir
#Get-ChildItem $basePath *.java | Remove-item -Force

hdc = hide empty default constructor
dsg = decompile generic signatures
rsy = hide syntetic class members
rbr = hide brigde methods
lit = output numberic literal "as-is"
nls = define new line character to be used for outpu
mpm = max allowed processing time per deompile method

https://github.com/fesh0r/fernflower