The WeakReference class, monitoring memory leak and garbage collection in a Java application

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 Below is a Stack implementation that uses an internal resizeable array structure.  public class MyStack< T > implements Stack< T > { private static final int CAPACITY = 100 ; private Object[] array ; private int pos = 0 ; public MyStack () { this . array = new Object[ CAPACITY ] ; } @Override public void push ( T item) { if ( pos >= array . length / 2 ) { Object[] newArray = new Object[ pos * 2 ] ; System. arraycopy ( array , 0 , newArray , 0 , array . length ) ; array = newArray ; } array [ pos ++] = item ; } @Override public T pop () { if (isEmpty()) { throw new RuntimeException( "empty stack" ) ; } @SuppressWarnings ( "unchecked" ) T item = ( T ) array [ pos - 1 ] ; pos -= 1 ; return item ; } @Override @SuppressWarnings ( "unchecked" ) public T peek...
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DEVOPS

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This table shows imporant aspects of DEVOPS and related software products. The ones that I have used in the past are painted in red. I think this is a very nice table to look at alternative solutions to use for new projects. Of course some of them are essential:

  • Version control. (Subversion,  Git, ..)
  • Build tool. (Maven, Gradle, ..)
  • Testing. Unit Test, Stress Test, UI TEst. (JUnit, JMeter, Selenium)
  • Continuous Integration. (Bamboo, Continuum, ..)

 The others seem to depend on the size of the organization and the project. Some use AWS, others manage their own servers. 

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