Java 5

'BigDecimal' legacy method called  

Java

'String.indexOf()' expression can be replaced with 'contains()'  

Java

'StringBuffer' may be 'StringBuilder'  

Java

'for' loop can be replaced with enhanced for loop  

Java

'while' loop can be replaced with enhanced 'for' loop  

Java

Method can have varargs parameter  

Java

Raw use of parameterized class  

Java

Reference to empty collection field can be replaced with method call  

Java

Unnecessary boxing  

Java

Unnecessary unboxing  

Java