From 963358c4c3bbf3b1927c5e9f4ce9db57db4c4ea6 Mon Sep 17 00:00:00 2001
From: Stuart Douglas <stuart.w.douglas@gmail.com>
Date: Mon, 12 Apr 2021 10:41:29 +1000
Subject: [PATCH] Make sure class is only processed once

Note that at present we are processing more
classes than are strictly nessesary, however
the proper fix for this requires some changes
that are part of my continous testing branch.

Fixes #16347
---
 .../java/io/quarkus/jacoco/deployment/JacocoProcessor.java   | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/test-framework/jacoco/deployment/src/main/java/io/quarkus/jacoco/deployment/JacocoProcessor.java b/test-framework/jacoco/deployment/src/main/java/io/quarkus/jacoco/deployment/JacocoProcessor.java
index c6f4632447d43..d9763c585fa20 100644
--- a/test-framework/jacoco/deployment/src/main/java/io/quarkus/jacoco/deployment/JacocoProcessor.java
+++ b/test-framework/jacoco/deployment/src/main/java/io/quarkus/jacoco/deployment/JacocoProcessor.java
@@ -57,8 +57,13 @@ void transformerBuildItem(BuildProducer<BytecodeTransformerBuildItem> transforme
         Files.deleteIfExists(Paths.get(dataFile));
 
         Instrumenter instrumenter = new Instrumenter(new OfflineInstrumentationAccessGenerator());
+        Set<String> seen = new HashSet<>();
         for (ClassInfo i : indexBuildItem.getIndex().getKnownClasses()) {
             String className = i.name().toString();
+            if (seen.contains(className)) {
+                continue;
+            }
+            seen.add(className);
             transformers.produce(
                     new BytecodeTransformerBuildItem.Builder().setClassToTransform(className)
                             .setCacheable(true)