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Recommendations

MET00-J. Understand the difference between overriding and hiding

MET01-J. Follow good design principles while defining methods

MET02-J. Avoid ambiguous uses of overloading

MET03-J. For methods that return an array or collection prefer returning an empty array or collection over a null value

MET04-J. Always provide feedback about the resulting value of a method

Rules

MET30-J. Follow the general contract while overriding the equals method

MET31-J. Ensure that hashCode() is overridden when equals() is overridden

MET32-J. Ensure that constructors do not call overridable methods

MET33-J. Do not subject overloaded methods to polymorphic invocations

MET34-J. Follow the general contract when implementing the compareTo method

MET35-J. Ensure that the clone method calls super.clone

Risk Assessment Summary

Recommendations

Recommendation	Severity	Likelihood	Remediation Cost	Priority	Level
MET00-J	low	unlikely	high	P1	L3
MET01-J	low	unlikely	high	P1	L3
MET02-J	low	unlikely	high	P1	L3
MET03-J	low	unlikely	high	P1	L3
MET04-J	medium	unlikely	medium	P4	L3

Rules

Rules	Severity	Likelihood	Remediation Cost	Priority	Level
MET30-J	low	unlikely	medium	P2	L3
MET31-J	low	unlikely	high	P1	L3
MET32-J	medium	probable	medium	P8	L2
MET34-J	medium	unlikely	medium	P4	L3

CON34-J. Avoid deadlock by requesting fine-grained locks in the proper order The CERT Sun Microsystems Secure Coding Standard for Java MET00-J. Understand the difference between overriding and hiding