Cleaner captures object reference
Reports Runnable
passed to a Cleaner.register()
capturing reference being registered. If the reference is captured, it will never be phantom reachable and the cleaning action will never be invoked.
Possible sources of this problem:
Lambda using non-static methods, fields, or
this
itselfNon-static inner class (anonymous or not) always captures this reference in java up to 18 version
Instance method reference
Access to outer class non-static members from non-static inner class
- By ID
Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.
CapturingCleaner
Sample of code that will be reported:
int fileDescriptor;
Cleaner.Cleanable cleanable = Cleaner.create().register(this, () -> {
System.out.println("adsad");
//this is captured via fileDescriptor
fileDescriptor = 0;
});
This inspection only reports if the language level of the project or module is 9 or higher.
New in 2018.1
Inspection Details | |
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By default bundled with: | |
Can be installed with plugin: | Java, 243.23126 |
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