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8043179: Lambda expression can mutate final field

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Reviewed-by: vromero
This commit is contained in:
Archie L. Cobbs 2023-03-23 15:59:51 +00:00 • committed by Vicente Romero
parent 147f3473d4
commit c00d0885ae
5 changed files with 35 additions and 0 deletions
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13
test/langtools/tools/javac/lambda/8043179/LambdaMutateFinalField.java Normal file
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/*
* @test /nodynamiccopyright/
* @summary Verify lambda expression can't mutate a final field
* @bug 8043179
* @compile/fail/ref=LambdaMutateFinalField.out -XDrawDiagnostics LambdaMutateFinalField.java
*/
class LambdaMutateFinalField {
final String x;
LambdaMutateFinalField() {
Runnable r1 = () -> x = "not ok";
this.x = "ok";
}
}

2
test/langtools/tools/javac/lambda/8043179/LambdaMutateFinalField.out Normal file
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LambdaMutateFinalField.java:10:29: compiler.err.var.might.already.be.assigned: x
1 error

13
test/langtools/tools/javac/lambda/8043179/LambdaMutateFinalVar.java Normal file
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/*
* @test /nodynamiccopyright/
* @summary Verify lambda expression can't mutate a final variable
* @bug 8043179
* @compile/fail/ref=LambdaMutateFinalVar.out -XDrawDiagnostics LambdaMutateFinalVar.java
*/
class LambdaMutateFinalVar {
LambdaMutateFinalVar() {
final String x;
Runnable r1 = () -> x = "not ok";
x = "ok";
}
}

2
test/langtools/tools/javac/lambda/8043179/LambdaMutateFinalVar.out Normal file
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LambdaMutateFinalVar.java:10:29: compiler.err.var.might.already.be.assigned: x
1 error