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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
70422 changed files with 17213626 additions and 0 deletions
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71
test/langtools/tools/javac/switchexpr/ExpressionSwitchFlow.java Normal file
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/*
* @test /nodynamiccopyright/
* @bug 8212982
* @summary Verify a compile-time error is produced if switch expression does not provide a value
* @compile/fail/ref=ExpressionSwitchFlow.out -XDrawDiagnostics ExpressionSwitchFlow.java
*/
public class ExpressionSwitchFlow {
private String test1(int i) {
return switch (i) {
case 0 -> {}
default -> { yield "other"; }
};
}
private String test2(int i) {
return switch (i) {
case 0 -> {
}
default -> "other";
};
}
private String test3(int i) {
return switch (i) {
case 0 -> {}
case 1 -> "";
default -> throw new IllegalStateException();
};
}
private String test4(int i) {
return switch (i) {
case 0 -> { yield "other"; }
default -> {}
};
}
private String test5(int i) {
return switch (i) {
case 0 -> "other";
default -> {}
};
}
private String test6(int i) {
return switch (i) {
case 0 -> throw new IllegalStateException();
case 1 -> "";
default -> {}
};
}
private String test7(int i) {
return switch (i) {
case 0: throw new IllegalStateException();
case 1: yield "";
default:
};
}
private String test8(int i) {
return switch (i) {
case 1: yield "";
case 0: i++;
default: {
}
};
}
private String test9(int i) {
return switch (i) {
case 1: yield "";
case 0:
default:
System.err.println();
};
}
}