Add lambda creation test case

spotbugs-tests/src/test/java/edu/umd/cs/findbugs/detect/ResolveMethodReferencesTest.java

@@ -0,0 +1,32 @@
+package edu.umd.cs.findbugs.detect;
+
+import edu.umd.cs.findbugs.BugCollection;
+import edu.umd.cs.findbugs.SortedBugCollection;
+import edu.umd.cs.findbugs.test.SpotBugsRule;
+import org.hamcrest.Matchers;
+import org.junit.Rule;
+import org.junit.Test;
+
+import java.nio.file.Paths;
+
+import static org.hamcrest.Matchers.instanceOf;
+import static org.hamcrest.collection.IsEmptyIterable.emptyIterable;
+import static org.hamcrest.core.Is.is;
+import static org.junit.Assert.assertThat;
+
+public class ResolveMethodReferencesTest {
+    @Rule
+    public SpotBugsRule spotbugs = new SpotBugsRule();
+
+    /**
+     * @see <a href="https://github.com/spotbugs/spotbugs/issues/338">GitHub
+     *      issue</a>
+     */
+    @Test
+    public void testIssue338() {
+        BugCollection bugCollection = spotbugs.performAnalysis(Paths.get("../spotbugsTestCases/build/classes/java/main/lambdas/Issue338.class"));
+        assertThat(bugCollection, is(emptyIterable()));
+        assertThat(bugCollection, instanceOf(SortedBugCollection.class));
+        assertThat(((SortedBugCollection) bugCollection).missingClassIterator().hasNext(), is(false));
+    }
+}

spotbugsTestCases/src/java/lambdas/Issue338.java

@@ -0,0 +1,17 @@
+package lambdas;
+
+public class Issue338 {
+
+    public static void main(String[] args) {
+        Runnable a = System.err::println;
+        Runnable b = () -> {
+            if (System.getenv("SOME_RANDOM_VAR") == null) {
+                a.run();
+            }
+            a.run();
+        };
+        a.run();
+        b.run();
+    }
+
+}