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/StringBuilder/Exceptions.java
+++ b/test/jdk/java/lang/StringBuilder/Exceptions.java
@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2005, 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 6248507
+ * @summary Verify that exceptions are thrown as expected.
+ */
+
+public class Exceptions {
+    private static boolean ok = true;
+
+    private static void fail(Throwable ex, String s, Throwable got) {
+        ok = false;
+        System.err.println("expected "
+                           + ex.getClass().getName() + ": " + ex.getMessage()
+                           + " for " + s
+                           + " got "
+                           + got.getClass().getName() + ": " + got.getMessage()
+                           + " - FAILED");
+    }
+
+    private static void pass(String s) {
+        System.out.println(s + " -- OK");
+    }
+
+    private static void tryCatch(String s, Throwable ex, Runnable thunk) {
+        Throwable t = null;
+        try {
+            thunk.run();
+        } catch (Throwable x) {
+            if (ex.getClass().isAssignableFrom(x.getClass()))
+                t = x;
+            else
+                x.printStackTrace();
+        }
+        if ((t == null) && (ex != null))
+            fail(ex, s, t);
+
+        String msg = (ex == null ? null : ex.getMessage());
+        if ((msg != null) && !msg.equals(t.getMessage()))
+            fail(ex, s, t);
+        else
+            pass(s);
+    }
+
+    public static void main(String [] args) {
+        System.out.println("StringBuilder()");
+        tryCatch("  no args", null, new Runnable() {
+                public void run() {
+                    new StringBuilder();
+                }});
+
+        System.out.println("StringBuilder(int length)");
+        tryCatch("  1", null, new Runnable() {
+                public void run() {
+                    new StringBuilder(1);
+                }});
+        tryCatch("  -1", new NegativeArraySizeException(), new Runnable() {
+                public void run() {
+                    new StringBuilder(-1);
+                }});
+
+        System.out.println("StringBuilder(String str)");
+        tryCatch("  null", new NullPointerException(), new Runnable() {
+                public void run() {
+                    new StringBuilder(null);
+                }});
+        tryCatch("  foo", null, new Runnable() {
+                public void run() {
+                    new StringBuilder("foo");
+                }});
+
+        System.out.println("StringBuilder.replace(int start, int end, String str)");
+        tryCatch("  -1, 2, \" \"",
+                 new StringIndexOutOfBoundsException("Range [-1, 2) out of bounds for length 7"),
+                 new Runnable() {
+                public void run() {
+                    StringBuilder sb = new StringBuilder("hilbert");
+                    sb.replace(-1, 2, " ");
+                }});
+        tryCatch("  7, 8, \" \"",
+                 new StringIndexOutOfBoundsException("Range [7, 6) out of bounds for length 6"),
+                 new Runnable() {
+                public void run() {
+                    StringBuilder sb = new StringBuilder("banach");
+                    sb.replace(7, 8, " ");
+                }});
+        tryCatch("  2, 1, \" \"",
+                 new StringIndexOutOfBoundsException("Range [2, 1) out of bounds for length 7"),
+                 new Runnable() {
+                public void run() {
+                    StringBuilder sb = new StringBuilder("riemann");
+                    sb.replace(2, 1, " ");
+                }});
+
+        if (!ok) {
+            throw new RuntimeException("Some tests FAILED");
+        } else {
+            System.out.println("All tests PASSED");
+        }
+    }
+}