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/lang/invoke/condy/CondyInterfaceWithOverpassMethods.java
+++ b/test/jdk/java/lang/invoke/condy/CondyInterfaceWithOverpassMethods.java
@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2018, 2025, 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 8186046
+ * @summary Test for an interface using condy with default overpass methods
+ * @library /java/lang/invoke/common
+ * @build test.java.lang.invoke.lib.InstructionHelper
+ * @run junit CondyInterfaceWithOverpassMethods
+ * @run junit/othervm -XX:+UnlockDiagnosticVMOptions -XX:UseBootstrapCallInfo=3 CondyInterfaceWithOverpassMethods
+ */
+
+import java.lang.classfile.ClassFile;
+import test.java.lang.invoke.lib.InstructionHelper;
+
+import java.lang.constant.*;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodType;
+
+import org.junit.jupiter.api.BeforeAll;
+import org.junit.jupiter.api.Test;
+
+public class CondyInterfaceWithOverpassMethods {
+    interface A {
+        int a();
+
+        default int x() {
+            return 1;
+        }
+    }
+
+
+    // Generated class with methods containing condy ldc
+    static Class<?> gc;
+
+    public static Object bsm(MethodHandles.Lookup l, String name, Class<?> type) {
+        return name;
+    }
+
+    @BeforeAll
+    public static void generateClass() throws Exception {
+//        interface B extends A {
+//            // Overpass for method A.a
+//
+//            default void y() {
+//                // ldc to Dynamic
+//            }
+//        }
+        Class<?> thisClass = CondyInterfaceWithOverpassMethods.class;
+
+        String genClassName = thisClass.getSimpleName() + "$Code";
+        String bsmClassName = thisClass.descriptorString();
+        String bsmMethodName = "bsm";
+        String bsmDescriptor = MethodType.methodType(Object.class, MethodHandles.Lookup.class,
+                String.class, Class.class).toMethodDescriptorString();
+
+        byte[] byteArray = ClassFile.of().build(ClassDesc.of(genClassName), classBuilder -> classBuilder
+                .withFlags(ClassFile.ACC_INTERFACE + ClassFile.ACC_ABSTRACT)
+                .withSuperclass(ConstantDescs.CD_Object)
+                .withInterfaceSymbols(InstructionHelper.classDesc(A.class))
+                .withMethod("y", MethodTypeDesc.of(ConstantDescs.CD_String), ClassFile.ACC_PUBLIC, methodBuilder -> methodBuilder
+                        .withCode(codeBuilder -> codeBuilder
+                                .ldc(DynamicConstantDesc.ofNamed(
+                                                MethodHandleDesc.of(
+                                                        DirectMethodHandleDesc.Kind.STATIC,
+                                                        ClassDesc.ofDescriptor(bsmClassName),
+                                                        bsmMethodName,
+                                                        bsmDescriptor
+                                                ),
+                                                "String",
+                                                ConstantDescs.CD_String
+                                        )
+                                )
+                                .areturn()
+                        )
+                )
+        );
+        gc = MethodHandles.lookup().defineClass(byteArray);
+    }
+
+    @Test
+    public void testClass() throws Exception {
+        // Trigger initialization
+        Class.forName(gc.getName());
+    }
+}