Concurrent Stack Assignment

Previous Exercise

Recall that you have built a NotThreadSafeStack.

Motivation

We will modify our previous Stack solution, this time producing a thread-safe implementation of a Stack using synchronized methods.

Background

Implicit Locks

synchronized methods

Code To Implement

ConcurrentStack

To be @ThreadSafe, one must hold intrinsic lock (via synchronized) on the ConcurrentStack instance for each of the methods which read and/or write to mutable data.

class:	ConcurrentStack.java
methods:	constructor push peek pop
package:	stack.concurrent.exercise
source folder:	student/src/main/java

constructor and instance variables

Be sure to initialize whatever state you need to implement a mutable thread-safe Stack.

Testing

class:	__ConcurrentStackTestSuite.java
package:	stack.concurrent.exercise
source folder:	testing/src/test/java

Pledge, Acknowledgments, Citations

file:

concurrent-stack-pledge-acknowledgments-citations.txt

More info about the Honor Pledge