From 8dfc02b8ecae96b6b08723a31132670813398cf0 Mon Sep 17 00:00:00 2001
From: Ulli Hafner <ullrich.hafner@gmail.com>
Date: Thu, 13 Apr 2023 13:58:56 +0200
Subject: [PATCH 1/2] Handle overflow in fractional numbers gracefully.

Fixes https://github.com/jenkinsci/code-coverage-api-plugin/issues/637
---
 .../metrics/model/ElementFormatter.java       |  3 ++-
 .../metrics/model/ElementFormatterTest.java   | 22 +++++++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)
 create mode 100644 plugin/src/test/java/io/jenkins/plugins/coverage/metrics/model/ElementFormatterTest.java

diff --git a/plugin/src/main/java/io/jenkins/plugins/coverage/metrics/model/ElementFormatter.java b/plugin/src/main/java/io/jenkins/plugins/coverage/metrics/model/ElementFormatter.java
index 506a25aea..f6bd4477d 100644
--- a/plugin/src/main/java/io/jenkins/plugins/coverage/metrics/model/ElementFormatter.java
+++ b/plugin/src/main/java/io/jenkins/plugins/coverage/metrics/model/ElementFormatter.java
@@ -15,6 +15,7 @@
 import edu.hm.hafner.coverage.IntegerValue;
 import edu.hm.hafner.coverage.Metric;
 import edu.hm.hafner.coverage.Percentage;
+import edu.hm.hafner.coverage.SafeFraction;
 import edu.hm.hafner.coverage.Value;
 
 import hudson.Functions;
@@ -348,7 +349,7 @@ public String formatDelta(final Fraction fraction, final Metric metric, final Lo
                 || metric.equals(Metric.LOC)) {
             return String.format(locale, "%+d", fraction.intValue());
         }
-        return String.format(locale, "%+.2f%%", fraction.multiplyBy(HUNDRED).doubleValue());
+        return String.format(locale, "%+.2f%%", new SafeFraction(fraction).multiplyBy(HUNDRED).doubleValue());
     }
 
     /**
diff --git a/plugin/src/test/java/io/jenkins/plugins/coverage/metrics/model/ElementFormatterTest.java b/plugin/src/test/java/io/jenkins/plugins/coverage/metrics/model/ElementFormatterTest.java
new file mode 100644
index 000000000..d46e68401
--- /dev/null
+++ b/plugin/src/test/java/io/jenkins/plugins/coverage/metrics/model/ElementFormatterTest.java
@@ -0,0 +1,22 @@
+package io.jenkins.plugins.coverage.metrics.model;
+
+import java.util.Locale;
+
+import org.apache.commons.lang3.math.Fraction;
+import org.junit.jupiter.api.Test;
+
+import edu.hm.hafner.coverage.Metric;
+
+import static org.assertj.core.api.Assertions.*;
+
+class ElementFormatterTest {
+    @Test
+    void shouldHandleOverflowGracefully() {
+        var formatter = new ElementFormatter();
+
+        var fraction = Fraction.getFraction(Integer.MAX_VALUE - 1, Integer.MAX_VALUE - 1);
+        var delta = formatter.formatDelta(fraction, Metric.LINE, Locale.ENGLISH);
+
+        assertThat(delta).isEqualTo("+100.00%");
+    }
+}

From 45abb16ca1424b5b9e8a88fd6022cb604d25159c Mon Sep 17 00:00:00 2001
From: Ulli Hafner <ullrich.hafner@gmail.com>
Date: Thu, 13 Apr 2023 14:01:21 +0200
Subject: [PATCH 2/2] Bump version to 4.2.2.

---
 plugin/pom.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugin/pom.xml b/plugin/pom.xml
index 966b1175d..77a4cb3ca 100644
--- a/plugin/pom.xml
+++ b/plugin/pom.xml
@@ -19,7 +19,7 @@
   <url>https://github.com/jenkinsci/code-coverage-api-plugin</url>
 
   <properties>
-    <revision>4.3.0</revision>
+    <revision>4.2.2</revision>
     <changelist>-SNAPSHOT</changelist>
     <gitHubRepo>jenkinsci/code-coverage-api-plugin</gitHubRepo>