AutoCloseable used without 'try'-with-resources
Reports AutoCloseable
instances which are not used in a try-with-resources statement, also known as Automatic Resource Management.
This means that the "open resource before/in try
, close in finally
" style that had been used before try-with-resources became available, is also reported. This inspection is meant to replace all opened but not safely closed inspections when developing in Java 7 and higher.
Example:
private static void foo() throws IOException {
InputStream profile = Thread.currentThread().getContextClassLoader().getResourceAsStream("/someFile");
System.out.println(profile.read());
}
- 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.
resource
Use the following options to configure the inspection:
List subclasses of
AutoCloseable
that do not need to be closed and should be ignored by this inspection.Note: The inspection will still report streams returned from the
java.nio.file.Files
methodslines()
,walk()
,list()
andfind()
, even whenjava.util.stream.Stream
is listed to be ignored. These streams contain an associated I/O resource that needs to be closed.List methods returning
AutoCloseable
that should be ignored when called.Whether to ignore an
AutoCloseable
if it is the result of a method call. When this option is enabled, the results of factory methods will also be ignored.Whether the inspection should report if an
AutoCloseable
instance is passed as a method call argument. If this option is enabled, the inspection assumes the resource is closed in the called method. Method calls inside afinally
block with 'close' in the name and anAutoCloseable
argument will not be ignored.Whether to ignore method references to constructors of resource classes.
Whether to ignore methods that return a resource and whose name starts with 'get'. This can reduce false positives because most of the getters do not transfer the ownership of the resource, and their call sites are not responsible for closing the resource.
This inspection depends on the Java feature 'Try-with-resources', which is available since Java 7.
Here you can find the description of settings available for the AutoCloseable used without 'try'-with-resources inspection, and the reference of their default values.
- Ignored AutoCloseable resource types
[java.util.stream.Stream, java.util.stream.IntStream, java.util.stream.LongStream, java.util.stream.DoubleStream, java.io.ByteArrayOutputStream, java.io.ByteArrayInputStream, java.io.StringBufferInputStream, java.io.CharArrayWriter, java.io.CharArrayReader, java.io.StringWriter, java.io.StringReader, java.util.Formatter, java.util.Scanner, org.springframework.context.ConfigurableApplicationContext, io.micronaut.context.ApplicationContext]
Inspection Details | |
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By default bundled with: | |
Can be installed with plugin: | Java, 243.23126 |
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