Fix VirtualPrinting

Fixes java.lang.ExceptionInInitializerError caused by: java.lang.NullPointerException: Cannot invoke "org.apache.commons.logging.Log.error(Object, java.lang.Throwable)" because "org.apache.pdfbox.io.IOUtils.LOG" is null

Author: dev-Fabi

build.gradle.kts

@@ -51,10 +51,7 @@ dependencies {
     implementation("co.touchlab:kermit:$kermitVersion")
     implementation("io.sentry:sentry:7.2.0")
 
-    // TODO pdfbox does not work well with conveyor as the tool uses jlink and pdfbox is a auto-module which is not
-    //  supported by jlink. Updating to 3.0.1 currently would break the Mediator completely. With 3.0.0-RC1 just
-    //  VirtualPrinters do not work.
-    implementation("org.apache.pdfbox:pdfbox:3.0.0-RC1")
+    implementation("org.apache.pdfbox:pdfbox:3.0.1")
     runtimeOnly("org.jetbrains.kotlinx:kotlinx-coroutines-swing:1.7.3") // Adds a Main Dispatcher for Desktop
 
     implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.2")

conveyor.conf

@@ -22,6 +22,10 @@ app {
 
   vcs-url = github.com/DatepollSystems/WaiterRobot-Desktop
   license = GPL-3.0
+
+  jvm {
+    modules += jdk.unsupported // Needed for apache.pdfbox (org.apache.pdfbox.io.IOUtils wants to use sun.misc.Unsafe)
+  }
 }
 
 conveyor.compatibility-level = 12

src/main/kotlin/org/datepollsystems/waiterrobot/mediator/printer/AbstractLocalPrinter.kt

@@ -2,6 +2,7 @@ package org.datepollsystems.waiterrobot.mediator.printer
 
 import org.apache.pdfbox.Loader
 import org.apache.pdfbox.pdmodel.PDDocument
+import org.koin.core.component.KoinComponent
 import java.util.*
 
 /**
@@ -12,8 +13,7 @@ import java.util.*
  * @author Fabian Schedler
  * @see org.datepollsystems.waiterrobot.mediator.printer.LocalPrinterTest.testPrint
  */
-abstract class AbstractLocalPrinter : LocalPrinterInfo {
-
+abstract class AbstractLocalPrinter : LocalPrinterInfo, KoinComponent {
     fun printPdf(pdfId: String, base64data: String) {
         val decoded = Base64.getDecoder().decode(base64data)
         printPdf(pdfId, Loader.loadPDF(decoded))

src/main/kotlin/org/datepollsystems/waiterrobot/mediator/printer/VirtualLocalPrinter.kt

@@ -2,16 +2,19 @@ package org.datepollsystems.waiterrobot.mediator.printer
 
 import org.apache.pdfbox.pdmodel.PDDocument
 import org.datepollsystems.waiterrobot.mediator.App
+import org.datepollsystems.waiterrobot.mediator.core.di.injectLogger
 import java.io.File
 import kotlin.io.path.Path
 
 class VirtualLocalPrinter(number: Int) : AbstractLocalPrinter() {
     override val localId: String = "virtualPrinter_$number"
     override val name: String = "Virtual Printer $number"
     private val basePath: File = Path(App.config.basePath, "virtualPrinters", number.toString()).toFile()
+    private val logger by injectLogger(this::class.simpleName + "#$localId")
 
     init {
         basePath.mkdirs()
+        logger.i("Will save to: ${basePath.absolutePath}")
     }
 
     override fun printPdf(pdfId: String, document: PDDocument) {