IOResource

Reports I/O resources that are not safely closed. I/O resources checked by this inspection include java.io.InputStream, java.io.OutputStream, java.io.Reader, java.io.Writer, java.util.zip.ZipFile, java.io.Closeable and java.io.RandomAccessFile.

I/O resources wrapped by other I/O resources are not reported, as the wrapped resource will be closed by the wrapping resource.

By default, the inspection assumes that the resources can be closed by any method with 'close' or 'cleanup' in its name.

Example:

void save() throws IOException {
    FileWriter writer = new FileWriter("filename.txt"); //warning
    writer.write("sample");
  }

Use the following options to configure the inspection:

• List I/O resource classes that do not need to be closed and should be ignored by this inspection.
• Whether an I/O resource is allowed to be opened inside a tryblock. This style is less desirable because it is more verbose than opening a resource in front of a try block.
• Whether the resource can be closed by any method call with the resource passed as argument.