resources-en/src/inspectionDescriptions/EqualsAndHashcode.html - platform/tools/idea - Git at Google

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 <font face="verdana" size="-1">This inspection reports classes that override method
 <b><font color="#000080">equals()</font></b> but do not override method
 <b><font color="#000080">hashCode()</font></b>, or vice versa, which could potentially lead to problems
 when class is added to a <b><font color="#000080">Collection</font></b>.</font>
 </body>
 </html>
	<html>
	<body>
	<font face="verdana" size="-1">This inspection reports classes that override method
	<b><font color="#000080">equals()</font></b> but do not override method
	<b><font color="#000080">hashCode()</font></b>, or vice versa, which could potentially lead to problems
	when class is added to a <b><font color="#000080">Collection</font></b>.</font>
	</body>
	</html>