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/nio/Buffer/Basic.java
+++ b/test/jdk/java/nio/Buffer/Basic.java
@ -0,0 +1,144 @@
+/*
+ * Copyright (c) 2000, 2023, 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
+ * @summary Unit test for buffers
+ * @bug 4413135 4414911 4416536 4416562 4418782 4471053 4472779 4490253 4523725
+ *      4526177 4463011 4660660 4661219 4663521 4782970 4804304 4938424 5029431
+ *      5071718 6231529 6221101 6234263 6535542 6591971 6593946 6795561 7190219
+ *      7199551 8065556 8149469 8230665 8237514 8306374 8306623 8306959
+ * @modules java.base/java.nio:open
+ *          java.base/jdk.internal.misc
+ * @author Mark Reinhold
+ */
+
+
+import java.io.PrintStream;
+
+import java.nio.Buffer;
+import java.nio.ByteBuffer;
+import java.nio.CharBuffer;
+
+
+public class Basic {
+
+    static PrintStream out = System.err;
+
+    static long ic(int i) {
+        int j = i % 54;
+        return j + 'a' + ((j > 26) ? 128 : 0);
+    }
+
+    static String toString(Buffer b) {
+        return (b.getClass().getName()
+                + "[pos=" + b.position()
+                + " lim=" + b.limit()
+                + " cap=" + b.capacity()
+                + "]");
+    }
+
+    static void show(int level, Buffer b) {
+        for (int i = 0; i < level; i++)
+            out.print("  ");
+        out.println(toString(b) + " " + Integer.toHexString(b.hashCode()));
+    }
+
+    static void fail(String s) {
+        throw new RuntimeException(s);
+    }
+
+    static void fail(String s, Buffer b) {
+        throw new RuntimeException(s + ": " + toString(b));
+    }
+
+    static void fail(String s, Buffer b, Buffer b2) {
+        throw new RuntimeException(s + ": "
+                                   + toString(b) + ", " + toString(b2));
+    }
+
+    static void fail(Buffer b,
+                     String expected, char expectedChar,
+                     String got, char gotChar)
+    {
+        if (b instanceof ByteBuffer) {
+            ByteBuffer bb = (ByteBuffer)b;
+            int n = Math.min(16, bb.limit());
+            for (int i = 0; i < n; i++)
+                out.print(" " + Integer.toHexString(bb.get(i) & 0xff));
+            out.println();
+        }
+        if (b instanceof CharBuffer) {
+            CharBuffer bb = (CharBuffer)b;
+            int n = Math.min(16, bb.limit());
+            for (int i = 0; i < n; i++)
+                out.print(" " + Integer.toHexString(bb.get(i) & 0xffff));
+            out.println();
+        }
+        throw new RuntimeException(toString(b)
+                                   + ": Expected '" + expectedChar + "'=0x"
+                                   + expected
+                                   + ", got '" + gotChar + "'=0x"
+                                   + got);
+    }
+
+    static void fail(Buffer b, long expected, long got) {
+        fail(b,
+             Long.toHexString(expected), (char)expected,
+             Long.toHexString(got), (char)got);
+    }
+
+    static void ck(Buffer b, boolean cond) {
+        if (!cond)
+            fail("Condition failed", b);
+    }
+
+    static void ck(Buffer b, long got, long expected) {
+        if (expected != got)
+            fail(b, expected, got);
+    }
+
+    static void ck(Buffer b, float got, float expected) {
+        if (expected != got)
+            fail(b,
+                 Float.toString(expected), (char)expected,
+                 Float.toString(got), (char)got);
+    }
+
+    static void ck(Buffer b, double got, double expected) {
+        if (expected != got)
+            fail(b,
+                 Double.toString(expected), (char)expected,
+                 Double.toString(got), (char)got);
+    }
+
+    public static void main(String[] args) {
+        BasicByte.test();
+        BasicChar.test();
+        BasicShort.test();
+        BasicInt.test();
+        BasicLong.test();
+        BasicFloat.test();
+        BasicDouble.test();
+    }
+
+}