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/langtools/tools/javac/lambda/LambdaTestStrictFPFlag.java
+++ b/test/langtools/tools/javac/lambda/LambdaTestStrictFPFlag.java
@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2014, 2024, 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.
+ */
+
+/*
+ * @test
+ * @bug 8046060
+ * @summary Different results of floating point multiplication for lambda code block
+ * @library /tools/lib /test/lib
+ * @run main LambdaTestStrictFPFlag
+ */
+
+import jdk.test.lib.compiler.CompilerUtils;
+import toolbox.ToolBox;
+
+import java.lang.classfile.ClassFile;
+import java.lang.classfile.ClassModel;
+import java.lang.classfile.MethodModel;
+import java.nio.file.Path;
+
+public class LambdaTestStrictFPFlag {
+    private static final String SOURCE = """
+            class Test {
+                strictfp void test() {
+                    Face itf = () -> { };
+                }
+            }
+
+            interface Face {
+                void m();
+            }
+            """;
+
+    public static void main(String[] args) throws Exception {
+        new LambdaTestStrictFPFlag().run();
+    }
+
+    void run() throws Exception {
+        Path src = Path.of("src");
+        Path out = Path.of("out");
+
+        ToolBox toolBox = new ToolBox();
+        toolBox.writeJavaFiles(src, SOURCE);
+        CompilerUtils.compile(src, out, "--release", "16");
+
+        ClassModel cm = ClassFile.of().parse(out.resolve("Test.class"));
+        boolean found = false;
+        for (MethodModel meth: cm.methods()) {
+            if (meth.methodName().stringValue().startsWith("lambda$")) {
+                if ((meth.flags().flagsMask() & ClassFile.ACC_STRICT) == 0){
+                    throw new Exception("strict flag missing from lambda");
+                }
+                found = true;
+            }
+        }
+        if (!found) {
+            throw new Exception("did not find lambda method");
+        }
+    }
+}