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/reflect/StaticFieldsOnInterface.java
+++ b/test/jdk/java/lang/reflect/StaticFieldsOnInterface.java
@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2017, 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 8186961
+ * @run main/othervm StaticFieldsOnInterface C
+ * @run main/othervm StaticFieldsOnInterface D
+ * @run main/othervm StaticFieldsOnInterface Y
+ */
+
+public class StaticFieldsOnInterface {
+    /*
+            A
+           / \
+          B  C
+          \  /
+           D
+
+        Interface A has a public field
+        Ensure B, C, D only report exactly one public field
+
+          A
+         /
+        X A
+        |/
+        Y
+
+        Ensure class Y, extending class X, reports exactly one public field
+     */
+
+    public interface A {
+        public static final int CONSTANT = 42;
+    }
+
+    public interface B extends A {
+    }
+
+    public interface C extends A {
+    }
+
+    public interface D extends B, C {
+    }
+
+    static class X implements A {}
+    static class Y extends X implements A {}
+
+    public static void main(String[] args) throws Exception {
+        char first = 'C';
+        if (args.length > 0) {
+            first = args[0].charAt(0);
+        }
+
+        assertOneField(A.class);
+        // D first
+        if (first == 'D') {
+            assertOneField(D.class);
+            assertOneField(C.class);
+        }
+        // C first
+        else if (first == 'C') {
+            assertOneField(C.class);
+            assertOneField(D.class);
+        }
+        else {
+            assertOneField(Y.class);
+        }
+    }
+
+    static void assertOneField(Class<?> c) {
+        int nfs = c.getFields().length;
+        if (nfs != 1) {
+            throw new AssertionError(String.format(
+                    "Class %s does not have exactly one field: %d", c.getName(), nfs));
+        }
+    }
+}