undefect. CWE-407 — 63 sites patched across 27 ecosystems

Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
2026-03-26 17:11:57 -04:00 · 2026-03-26 17:11:57 -04:00 · 0a580b313d
commit 0a580b313d
70422 changed files with 17213626 additions and 0 deletions
--- a/test/jdk/java/util/concurrent/CompletableFuture/ThenComposeExceptionTest.java
+++ b/test/jdk/java/util/concurrent/CompletableFuture/ThenComposeExceptionTest.java
@ -0,0 +1,122 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+import org.testng.Assert;
+import org.testng.annotations.DataProvider;
+import org.testng.annotations.Test;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.CompletionException;
+import java.util.concurrent.atomic.AtomicReference;
+import java.util.function.BiFunction;
+import java.util.function.Consumer;
+
+/**
+ * @test
+ * @bug 8068432 8072030
+ * @run testng ThenComposeExceptionTest
+ * @summary Test that CompletableFuture.thenCompose works correctly if the
+ * composing future completes exceptionally
+ */
+@Test
+public class ThenComposeExceptionTest {
+
+    static final BiFunction<CompletableFuture<String>, CompletableFuture<String>, CompletableFuture<String>>
+            THEN_COMPOSE = (f, fe) -> f.thenCompose(s -> fe);
+
+    static final BiFunction<CompletableFuture<String>, CompletableFuture<String>, CompletableFuture<String>>
+            THEN_COMPOSE_ASYNC = (f, fe) -> f.thenComposeAsync(s -> fe);
+
+    static final Consumer<CompletableFuture<String>>
+            COMPLETE_EXCEPTIONALLY = f -> f.completeExceptionally(new RuntimeException());
+
+    static final Consumer<CompletableFuture<String>>
+            NOP = f -> { };
+
+    static Object[][] actionsDataProvider;
+
+    @DataProvider(name = "actions")
+    static Object[][] actionsDataProvider() {
+        if (actionsDataProvider != null) {
+            return actionsDataProvider;
+        }
+
+        List<Object[]> data = new ArrayList<>();
+        data.add(new Object[]{"thenCompose and completeExceptionally", NOP, THEN_COMPOSE, COMPLETE_EXCEPTIONALLY});
+        data.add(new Object[]{"thenComposeAsync and completeExceptionally", NOP, THEN_COMPOSE_ASYNC, COMPLETE_EXCEPTIONALLY});
+        data.add(new Object[]{"completeExceptionally and thenCompose", COMPLETE_EXCEPTIONALLY, THEN_COMPOSE, NOP});
+        data.add(new Object[]{"completeExceptionally and thenComposeAsync", COMPLETE_EXCEPTIONALLY, THEN_COMPOSE_ASYNC, NOP});
+
+        return actionsDataProvider = data.toArray(new Object[0][]);
+    }
+
+    @Test(dataProvider = "actions")
+    public void testThenCompose(
+            String description,
+            Consumer<CompletableFuture<String>> beforeAction,
+            BiFunction<CompletableFuture<String>, CompletableFuture<String>, CompletableFuture<String>> composeFunction,
+            Consumer<CompletableFuture<String>> afterAction) throws Exception {
+        CompletableFuture<String> f = new CompletableFuture<>();
+        CompletableFuture<String> fe = new CompletableFuture<>();
+
+        // Ensure pre-composed stage is completed to trigger
+        // processing the composing future
+        f.complete("");
+
+        beforeAction.accept(fe);
+
+        CompletableFuture<String> f_thenCompose = composeFunction.apply(f, fe);
+        Assert.assertNotSame(f_thenCompose, fe, "Composed CompletableFuture returned directly");
+
+        AtomicReference<Throwable> eOnWhenComplete = new AtomicReference<>();
+        CompletableFuture<String> f_whenComplete = f_thenCompose.
+                whenComplete((r, e) -> eOnWhenComplete.set(e));
+
+        afterAction.accept(fe);
+
+        Throwable eOnJoined = null;
+        try {
+            f_thenCompose.join();
+        }
+        catch (Throwable t) {
+            eOnJoined = t;
+        }
+        Assert.assertTrue(eOnJoined instanceof CompletionException,
+                          "Incorrect exception reported when joined on thenCompose: " + eOnJoined);
+
+        // Need to wait for f_whenComplete to complete to avoid
+        // race condition when updating eOnWhenComplete
+        eOnJoined = null;
+        try {
+            f_whenComplete.join();
+        } catch (Throwable t) {
+            eOnJoined = t;
+        }
+        Assert.assertTrue(eOnJoined instanceof CompletionException,
+                          "Incorrect exception reported when joined on whenComplete: " + eOnJoined);
+        Assert.assertTrue(eOnWhenComplete.get() instanceof CompletionException,
+                          "Incorrect exception passed to whenComplete: " + eOnWhenComplete.get());
+    }
+}