Add additional logging around known spot of errors to try and gather more info. JDK 21

Author: jamesbrooks

.github/workflows/gradle.yml

@@ -18,11 +18,11 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - name: Set up JDK 19
+      - name: Set up JDK 21
         uses: actions/setup-java@v2
         with:
-          java-version: "19"
-          distribution: "adopt"
+          java-version: "21"
+          distribution: "temurin"
           server-id: github
           settings-path: ${{ github.workspace }}
 

.tool-versions

@@ -1 +1 @@
-java adoptopenjdk-19.0.2+7
+java temurin-21.0.2+13.0.LTS

build.gradle

@@ -1,9 +1,9 @@
 plugins {
     id 'org.springframework.boot' version '2.6.6'
     id 'io.spring.dependency-management' version '1.1.0'
-    id 'org.jetbrains.kotlin.jvm' version '1.8.21'
-    id 'org.jetbrains.kotlin.plugin.spring' version '1.8.21'
-    id 'org.jetbrains.kotlin.plugin.allopen' version '1.8.21'
+    id 'org.jetbrains.kotlin.jvm' version '1.9.22'
+    id 'org.jetbrains.kotlin.plugin.spring' version '1.9.22'
+    id 'org.jetbrains.kotlin.plugin.allopen' version '1.9.22'
     id 'war'
     id 'maven-publish'
     id 'net.nemerosa.versioning' version '3.0.0'
@@ -30,17 +30,17 @@ test {
 }
 
 group = 'au.com.sealink'
-sourceCompatibility = 19
+sourceCompatibility = 21
 compileKotlin {
 	kotlinOptions {
 		freeCompilerArgs = ["-Xjsr305=strict"]
-		jvmTarget = "19"
+		jvmTarget = "21"
 	}
 }
 compileTestKotlin {
 	kotlinOptions {
 		freeCompilerArgs = ["-Xjsr305=strict"]
-		jvmTarget = "19"
+		jvmTarget = "21"
 	}
 }
 
@@ -187,7 +187,7 @@ docker {
 import com.bmuschko.gradle.docker.tasks.image.Dockerfile
 
 task createDockerfile(type: Dockerfile) {
-    from 'openjdk:19-jdk-buster'
+    from 'openjdk:21-jdk-bookworm'
     label(
     	'maintainer': '[email protected]'
     )

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
 networkTimeout=10000
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

src/main/kotlin/au/com/sealink/quickprint/ApplicationController.kt

@@ -7,6 +7,7 @@ import au.com.sealink.quickprint.requests.*
 import org.springframework.web.bind.annotation.*
 import org.springframework.http.MediaType
 import kotlinx.coroutines.*
+import java.time.LocalDateTime
 
 import java.util.*
 
@@ -22,6 +23,7 @@ class ApplicationController(private val repository: PrinterRepository) {
 
     @PostMapping("/print-receipts")
     fun printReceipts(@RequestBody request: PrintReceipt) : Response {
+        System.err.println("[${LocalDateTime.now()}] RECEIPTS: printer='${request.printerName}', tickets=${request.tickets.size}")
         val unsupportedTypes = EnumSet.of(ElementType.Barcode, ElementType.Image)
         val printer = ReceiptPrinter(request.printerName)
         val tickets = request.tickets.map {
@@ -36,14 +38,21 @@ class ApplicationController(private val repository: PrinterRepository) {
         }
 
         GlobalScope.launch {
-            printer.printTickets(tickets)
+            try {
+                printer.printTickets(tickets)
+                System.err.println("[${LocalDateTime.now()}] RECEIPTS SUCCESS: printer='${request.printerName}'")
+            } catch (e: Exception) {
+                System.err.println("[${LocalDateTime.now()}] RECEIPTS FAILED: printer='${request.printerName}', error=${e.javaClass.name}: ${e.message}")
+                e.printStackTrace()
+            }
         }
 
         return Response()
     }
 
     @PostMapping("/print-tickets")
     fun printTickets(@RequestBody request: PrintTicket) : Response {
+        System.err.println("[${LocalDateTime.now()}] TICKETS: printer='${request.printerName}', tickets=${request.tickets.size}, format=${request.pageFormat.width}x${request.pageFormat.height}")
         val printer = repository.requestPrinter(request.printerName)
         val settings = TicketPageSettings(request.pageFormat.width,
                 request.pageFormat.height,
@@ -59,7 +68,13 @@ class ApplicationController(private val repository: PrinterRepository) {
         }
 
         GlobalScope.launch {
-            printer.printTickets(tickets)
+            try {
+                printer.printTickets(tickets)
+                System.err.println("[${LocalDateTime.now()}] TICKETS SUCCESS: printer='${request.printerName}'")
+            } catch (e: Exception) {
+                System.err.println("[${LocalDateTime.now()}] TICKETS FAILED: printer='${request.printerName}', error=${e.javaClass.name}: ${e.message}")
+                e.printStackTrace()
+            }
         }
         return Response()
     }

src/main/kotlin/au/com/sealink/quickprint/core/PrintServicePrinterRepository.kt

@@ -2,15 +2,20 @@ package au.com.sealink.quickprint.core
 
 import au.com.sealink.printing.ticketprinter.PrintServiceLocator
 import org.springframework.stereotype.Repository
+import java.time.LocalDateTime
 import javax.print.PrintService
 
 @Repository
 class PrintServicePrinterRepository : PrinterRepository {
     override fun requestPrinter(name: String): Printer {
+        System.err.println("[${LocalDateTime.now()}] PrinterRepository REQUEST: printer='$name'")
         return TicketPrinter(name)
     }
 
     override fun findAll(): Iterable<PrintService> {
-        return PrintServiceLocator().all.toList()
+        System.err.println("[${LocalDateTime.now()}] PrinterRepository ENUM START")
+        val services = PrintServiceLocator().all.toList()
+        System.err.println("[${LocalDateTime.now()}] PrinterRepository ENUM FOUND: count=${services.size}, names=${services.joinToString(",") { it.name }}")
+        return services
     }
 }

src/main/kotlin/au/com/sealink/quickprint/core/TicketPrinter.kt

@@ -3,19 +3,31 @@ package au.com.sealink.quickprint.core
 import au.com.sealink.printing.ticketprinter.Ticket
 import au.com.sealink.printing.ticketprinter.TicketPageSettings
 import au.com.sealink.printing.ticketprinter.TicketPrinter
+import java.time.LocalDateTime
 
 class TicketPrinter(private var name: String) : Printer {
     private val mPrinter : TicketPrinter = TicketPrinter()
 
     init {
+        System.err.println("[${LocalDateTime.now()}] TicketPrinter INIT: printer='$name'")
         mPrinter.setPrinter(this.name)
+        System.err.println("[${LocalDateTime.now()}] TicketPrinter INIT SUCCESS: printer='$name'")
     }
 
     override fun setTicketPageSettings(settings: TicketPageSettings) {
+        System.err.println("[${LocalDateTime.now()}] TicketPrinter SET_SETTINGS: printer='$name'")
         mPrinter.setTicketPageSettings(settings)
     }
 
     override fun printTickets(tickets: List<Ticket>) {
-        mPrinter.printTickets(tickets)
+        try {
+            System.err.println("[${LocalDateTime.now()}] TicketPrinter PRINT START: printer='$name', tickets=${tickets.size}, thread=${Thread.currentThread().name}")
+            mPrinter.printTickets(tickets)
+            System.err.println("[${LocalDateTime.now()}] TicketPrinter PRINT SUCCESS: printer='$name'")
+        } catch (e: Exception) {
+            System.err.println("[${LocalDateTime.now()}] TicketPrinter PRINT FAILED: printer='$name', error=${e.javaClass.name}: ${e.message}")
+            e.printStackTrace()
+            throw e
+        }
     }
 }