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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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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.
This commit is contained in:
russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
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test/langtools/tools/javac/patterns/BindingsTest1Merging.java Normal file
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/*
* @test /nodynamiccopyright/
* @bug 8231827
* @summary Basic tests for bindings from instanceof - tests for merging pattern variables
* @compile/fail/ref=BindingsTest1Merging.out -XDrawDiagnostics BindingsTest1Merging.java
*/
public class BindingsTest1Merging {
public static boolean Ktrue() { return true; }
public static void meth() {
Object o1 = "hello";
Integer i = 42;
Object o2 = i;
Object o3 = "there";
// Test for e1 && e2.F = intersect(e1.F, e2.F)
if (!(o1 instanceof String s) && !(o1 instanceof String s)) {
} else {
s.length();
}
// Test for (e1 || e2).T = intersect(e1.T, e2.T)
if (o1 instanceof String s || o3 instanceof String s){
System.out.println(s); // ?
}
// Test for (e1 ? e2 : e3).T contains intersect(e2.T, e3.T)
if (Ktrue() ? o2 instanceof Integer x : o2 instanceof Integer x) {
x.intValue();
}
// Test for (e1 ? e2 : e3).T contains intersect(e1.T, e3.T)
if (o1 instanceof String s ? true : o1 instanceof String s) {
s.length();
}
// Test for (e1 ? e2 : e3).T contains intersect(e1.F, e2.T)
if (!(o1 instanceof String s) ? (o1 instanceof String s) : true) {
s.length();
}
// Test for (e1 ? e2 : e3).F contains intersect(e2.F, e3.F)
if (Ktrue() ? !(o2 instanceof Integer x) : !(o2 instanceof Integer x)){
} else {
x.intValue();
}
// Test for (e1 ? e2 : e3).F contains intersect(e1.T, e3.F)
if (o1 instanceof String s ? true : !(o1 instanceof String s)){
} else {
s.length();
}
// Test for (e1 ? e2 : e3).F contains intersect(e1.F, e2.F)
if (!(o1 instanceof String s) ? !(o1 instanceof String s) : true){
} else {
s.length();
}
L3: {
if ((o1 instanceof String s) || (o3 instanceof String s)) {
s.length();
} else {
break L3;
}
s.length();
}
System.out.println("BindingsTest1Merging complete");
}
}