63 lines
1022 B
Plaintext
63 lines
1022 B
Plaintext
When ``++@Overrides++`` of ``++synchronized++`` methods are not themselves ``++synchronized++``, the result can be improper synchronization as callers rely on the thread-safety promised by the parent class.
|
|
|
|
|
|
== Noncompliant Code Example
|
|
|
|
[source,java]
|
|
----
|
|
public class Parent {
|
|
|
|
synchronized void foo() {
|
|
//...
|
|
}
|
|
}
|
|
|
|
public class Child extends Parent {
|
|
|
|
@Override
|
|
public void foo () { // Noncompliant
|
|
// ...
|
|
super.foo();
|
|
}
|
|
}
|
|
----
|
|
|
|
|
|
== Compliant Solution
|
|
|
|
[source,java]
|
|
----
|
|
public class Parent {
|
|
|
|
synchronized void foo() {
|
|
//...
|
|
}
|
|
}
|
|
|
|
public class Child extends Parent {
|
|
|
|
@Override
|
|
synchronized void foo () {
|
|
// ...
|
|
super.foo();
|
|
}
|
|
}
|
|
----
|
|
|
|
|
|
== See
|
|
|
|
* https://wiki.sei.cmu.edu/confluence/x/gzdGBQ[CERT, TSM00-J] - Do not override thread-safe methods with methods that are not thread-safe
|
|
|
|
ifdef::env-github,rspecator-view[]
|
|
|
|
'''
|
|
== Implementation Specification
|
|
(visible only on this page)
|
|
|
|
include::message.adoc[]
|
|
|
|
include::highlighting.adoc[]
|
|
|
|
endif::env-github,rspecator-view[]
|