[NETBEANS-4876] Incorrect "Malformed format string" hint for numbers in java.text.MessageFormat

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: java - Hints
• Assignee: Unassigned
• Reporter: Eugene Beldy
• Created: 06/Oct/20 10:07
• Updated: 06/Oct/20 10:09

Description

Following code produces warning "Argument 0 is not a number":

 

java.math.BigDecimal bigDecimal = java.math.BigDecimal.ONE;
java.text.MessageFormat.format("{0,number,#0.00}", bigDecimal);

 

That is incorrect, because java.math.BigDecimal is a subclass of java.lang.Number. It's not limited to java.math.BigDecimal, as all non-primitive arguments produce the same warning.