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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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246
test/langtools/tools/javac/protectedAccess/ProtectedMemberAccess4.java Normal file
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/*
* @test /nodynamiccopyright/
* @bug 4319507 4785453
* @summary Verify correct implementation of JLS2e 6.6.2.1
* @author maddox
*
* @compile/fail/ref=ProtectedMemberAccess4.out --diags=formatterOptions=-simpleNames;layout=%b:%l:%_%m ProtectedMemberAccess4.java
*/
// 33 errors expected.
import pkg.SuperClass;
class ProtectedMemberAccess4 extends pkg.SuperClass {
// Access to a protected instance (non-static) field, instance method,
// or member type by a qualified name is always legal in a subclass of
// the class in which the member is declared. Such access to a protected
// instance field or instance method is allowed only if the qualifying type
// or the type of the qualifying expression is (a subclass of) the class
// in which the reference occurs. In this test case, the qualifying type
// is a superclass, thus all of the qualified references to instance fields
// and instance methods are illegal.
pkg.SuperClass x = new pkg.SuperClass();
static pkg.SuperClass sx = new pkg.SuperClass();
int i = x.pi; // illegal
int j = x.spi; // ok
int n = sx.pi; // illegal
int m = sx.spi; // ok
static int sn = sx.pi; // illegal
static int sm = sx.spi; // ok
int w = x.pm(); // illegal
int y = x.spm(); // ok
int u = sx.pm(); // illegal
int v = sx.spm(); // ok
pkg.SuperClass.pC obj1; // ok
pkg.SuperClass.spC obj2; // ok
pkg.SuperClass.pI obj3; // ok
pkg.SuperClass.spI obj4; // ok
Object o1 = (pkg.SuperClass.pC) null; // ok
Object o2 = (pkg.SuperClass.spC) null; // ok
Object o3 = (pkg.SuperClass.pI) null; // ok
Object o4 = (pkg.SuperClass.spI) null; // ok
class C1 extends pkg.SuperClass.pC {} // ok
class C2 extends pkg.SuperClass.spC {} // ok
interface I1 extends pkg.SuperClass.pI {} // ok
interface I2 extends pkg.SuperClass.spI {} // ok
static {
pkg.SuperClass lx = new pkg.SuperClass();
sx.pi = 1; // illegal
sx.spi = 2; // ok
lx.pi = 1; // illegal
lx.spi = 2; // ok
int n = sx.pi; // illegal
int m = sx.spi; // ok
int k = lx.pi; // illegal
int l = lx.spi; // ok
int u = sx.pm(); // illegal
int v = sx.spm(); // ok
int w = lx.pm(); // illegal
int z = lx.spm(); // ok
pkg.SuperClass.pC obj1; // ok
pkg.SuperClass.spC obj2; // ok
pkg.SuperClass.pI obj3; // ok
pkg.SuperClass.spI obj4; // ok
Object o1 = (pkg.SuperClass.pC) null; // ok
Object o2 = (pkg.SuperClass.spC) null; // ok
Object o3 = (pkg.SuperClass.pI) null; // ok
Object o4 = (pkg.SuperClass.spI) null; // ok
//class C1 extends pkg.SuperClass.pC {}
class C2 extends pkg.SuperClass.spC {} // ok
//interface I1 extends pkg.SuperClass.pI {}
//interface I2 extends pkg.SuperClass.spI {}
}
void m() {
pkg.SuperClass lx = new pkg.SuperClass();
x.pi = 1; // illegal
x.spi = 2; // ok
sx.pi = 1; // illegal
sx.spi = 2; // ok
lx.pi = 1; // illegal
lx.spi = 2; // ok
int t = x.pm(); // illegal
int y = x.spm(); // ok
int u = sx.pm(); // illegal
int v = sx.spm(); // ok
int w = lx.pm(); // illegal
int z = lx.spm(); // ok
int i = x.pi; // illegal
int j = x.spi; // ok
int n = sx.pi; // illegal
int m = sx.spi; // ok
int k = lx.pi; // illegal
int l = lx.spi; // ok
pkg.SuperClass.pC obj1; // ok
pkg.SuperClass.spC obj2; // ok
pkg.SuperClass.pI obj3; // ok
pkg.SuperClass.spI obj4; // ok
Object o1 = (pkg.SuperClass.pC) null; // ok
Object o2 = (pkg.SuperClass.spC) null; // ok
Object o3 = (pkg.SuperClass.pI) null; // ok
Object o4 = (pkg.SuperClass.spI) null; // ok
class C1 extends pkg.SuperClass.pC {} // ok
class C2 extends pkg.SuperClass.spC {} // ok
//interface I1 extends pkg.SuperClass.pI {}
//interface I2 extends pkg.SuperClass.spI {}
}
class Inner {
int i = x.pi; // illegal
int j = x.spi; // ok
int n = sx.pi; // illegal
int m = sx.spi; // ok
//static int sn = sx.pi;
//static int sm = sx.spi;
int w = x.pm(); // illegal
int y = x.spm(); // ok
int u = sx.pm(); // illegal
int v = sx.spm(); // ok
pkg.SuperClass.pC obj1; // ok
pkg.SuperClass.spC obj2; // ok
pkg.SuperClass.pI obj3; // ok
pkg.SuperClass.spI obj4; // ok
Object o1 = (pkg.SuperClass.pC) null; // ok
Object o2 = (pkg.SuperClass.spC) null; // ok
Object o3 = (pkg.SuperClass.pI) null; // ok
Object o4 = (pkg.SuperClass.spI) null; // ok
class C1 extends pkg.SuperClass.pC {} // ok
class C2 extends pkg.SuperClass.spC {} // ok
//interface I1 extends pkg.SuperClass.pI {}
//interface I2 extends pkg.SuperClass.spI {}
// Not allowed in inner classes.
// static { ... }
void m() {
pkg.SuperClass lx = new pkg.SuperClass();
x.pi = 1; // illegal
x.spi = 2; // ok
sx.pi = 1; // illegal
sx.spi = 2; // ok
lx.pi = 1; // illegal
lx.spi = 2; // ok
int t = x.pm(); // illegal
int y = x.spm(); // ok
int u = sx.pm(); // illegal
int v = sx.spm(); // ok
int w = lx.pm(); // illegal
int z = lx.spm(); // ok
int i = x.pi; // illegal
int j = x.spi; // ok
int n = sx.pi; // illegal
int m = sx.spi; // ok
int k = lx.pi; // illegal
int l = lx.spi; // ok
pkg.SuperClass.pC obj1; // ok
pkg.SuperClass.spC obj2; // ok
pkg.SuperClass.pI obj3; // ok
pkg.SuperClass.spI obj4; // ok
Object o1 = (pkg.SuperClass.pC) null; // ok
Object o2 = (pkg.SuperClass.spC) null; // ok
Object o3 = (pkg.SuperClass.pI) null; // ok
Object o4 = (pkg.SuperClass.spI) null; // ok
class C1 extends pkg.SuperClass.pC {} // ok
class C2 extends pkg.SuperClass.spC {} // ok
//interface I1 extends pkg.SuperClass.pI {}
//interface I2 extends pkg.SuperClass.spI {}
}
}
}