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Finding all uses of a Java class in reference equality in IntelliJ

I want to identify all instances of reference equality for a particular class and replace them with equals. Is there a technique or tool in IntelliJ that I can use for this? Can I filter Find Usages down to "usage in ==" somehow?

Essentially, I would like this tool to list:

  1. Instances of this class and sub-classes

  2. That are used in reference equality

It is okay if it does not detect reference equality checks of instances of superclasses of this class.

Solution

  • The right way to do this is:

    1. Edit > Find > Search Structurally...

    2. Use the following template

    $LHS$ == $RHS$

    1. Click the $LHS$ section and add a Filter on the right of Type set to your type fully-qualified (in my case roshan.model.Quantity) and select 'Within Type Hierarchy'

    2. Repeat with the $RHS$ (you may optionally set the Type to model.Quantity|null if you want to include null-checks)

    3. Run Find

    This will find you exactly the set of reference equality checks of type LHS to type RHS including sub-classes on both sides. Ha! Amazing.