Java: Add test for pom targeting Java 8 but rquiring Java 11

java/ql/integration-tests/java/maven-java8-java11-dependency/pom.xml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+
+  <groupId>com.example</groupId>
+  <artifactId>maven-java8-java11-dependency</artifactId>
+  <version>1.0-SNAPSHOT</version>
+
+  <name>maven-java8-java11-dependency</name>
+  <description>Test case: Java 8 project with dependency requiring Java 11+</description>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    <maven.compiler.source>1.8</maven.compiler.source>
+    <maven.compiler.target>1.8</maven.compiler.target>
+  </properties>
+
+  <dependencies>
+    <!-- TestNG 7.7.0 is compiled with Java 11 (class file version 55.0) -->
+    <dependency>
+      <groupId>org.testng</groupId>
+      <artifactId>testng</artifactId>
+      <version>7.7.0</version>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>3.8.0</version>
+      </plugin>
+      <plugin>
+        <artifactId>maven-surefire-plugin</artifactId>
+        <version>2.22.1</version>
+      </plugin>
+    </plugins>
+  </build>
+</project>

java/ql/integration-tests/java/maven-java8-java11-dependency/source_archive.expected

@@ -0,0 +1,4 @@
+pom.xml
+src/main/java/com/example/Calculator.java
+src/test/java/com/example/CalculatorTest.java
+target/maven-archiver/pom.properties

java/ql/integration-tests/java/maven-java8-java11-dependency/src/main/java/com/example/Calculator.java

@@ -0,0 +1,11 @@
+package com.example;
+
+public class Calculator {
+    public int add(int a, int b) {
+        return a + b;
+    }
+
+    public int multiply(int a, int b) {
+        return a * b;
+    }
+}

java/ql/integration-tests/java/maven-java8-java11-dependency/src/test/java/com/example/CalculatorTest.java

@@ -0,0 +1,21 @@
+package com.example;
+
+import org.testng.Assert;
+import org.testng.annotations.Test;
+
+/**
+ * Test class using TestNG 7.7.0 which requires Java 11+.
+ */
+public class CalculatorTest {
+    @Test
+    public void testAdd() {
+        Calculator calc = new Calculator();
+        Assert.assertEquals(calc.add(2, 3), 5);
+    }
+
+    @Test
+    public void testMultiply() {
+        Calculator calc = new Calculator();
+        Assert.assertEquals(calc.multiply(3, 4), 12);
+    }
+}

java/ql/integration-tests/java/maven-java8-java11-dependency/test.py

@@ -0,0 +1,2 @@
+def test(codeql, java):
+    codeql.database.create()