Problem with InitializingBean and DisposableBean interfaces while creating event listener plugin

[vikram ummagani]

Hello Team,

I am trying to create a custom event listener plugin .I am using DisposableBean  and InitializingBean interfaces in my java class and I am getting error with the following message :
Multiple markers at this line
- The type InitializingBean cannot be a superinterface of IssueCreatedResolvedListener; a superinterface must be an
interface
- The type DisposableBean cannot be a superinterface of IssueCreatedResolvedListener; a superinterface must be an
interface.

I added all the related jars(spring-bean jars).I am unable to resolve this . Please help me .

Thanks in advance 
Vikram