Although Java lacks a true sizeof () equivalent, the Instrumentation interface introduced with J2SE5 can be used to get an estimate of the size of a particular object via its getObjectSize (Object ...

Copying objects is a common Java programming operation that has one serious trap. Here's how to avoid copying from an object reference and only copy the instance and values you want.

For example, in July this year, a critical vulnerability (CVE-2021-35464) in ForgeRock’s OpenAM stemmed from unsafe Java deserialization in the Jato framework used by the application.

This method allows you to supply an array of objects to the dialog box. Each object is rendered, and the calling program receives the array index position of the option selected. For example, the ...