[: 46: ==: unexpected operator

if [ x$TEMP == x ]; then
	export TEMP=/tmp
fi

#if [ x$TEMP == x ]; then
	export TEMP=/tmp
#fi

ACServer: error while loading shared libraries: ../lib/libtptpUtils.so: short file 

# file ../lib/libtptpUtils.so
ASCII Text

for i in `file *|grep  -i ascii|cut -f 1 -d : `; do new=`cat $i`; rm $i ;ln -s $new $i; done

# ./ACStart.sh 
ACServer: error while loading shared libraries: libstdc++.so.5: cannot open shared object file: No such file or directory

# sudo apt-get install libstdc++5 

# ./ACStart.sh 
Starting Agent Controller.
ACServer started successfully.

# ./ACStop.sh 
Shutting down the Agent Controller...
ACServer stopped.

<faces-config>   
<application>
<el-resolver>org.springframework.web.jsf.el.SpringBeanFacesELResolver</el-resolver>
  </application>
</faces-config>

Mar 5, 2008 11:51:14 PM com.sun.faces.lifecycle.LifecycleImpl phase
WARNING: executePhase(RENDER_RESPONSE 6,com.icesoft.faces.context.BridgeFacesContext@9b774e) threw exception
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'myBean': Scope 'session' is not active for the current thread; consider defining a scoped proxy for this bean if you intend to refer to it from a singleton; nested exception is java.lang.IllegalStateException: No thread-bound request found: Are you referring to request attributes outside of an actual web request? If you are actually operating within a web request and still receive this message,your code is probably running outside of DispatcherServlet/DispatcherPortlet: In this case, use RequestContextListener or RequestContextFilter to expose the current request.
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:293)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164)
	at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:888)
	at org.springframework.web.jsf.el.SpringBeanFacesELResolver.getValue(SpringBeanFacesELResolver.java:94)
	at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
	at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:58)
	at org.apache.el.parser.AstIdentifier.getValue(AstIdentifier.java:45)
	at org.apache.el.parser.AstValue.getValue(AstValue.java:86)
	at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
	at com.sun.faces.application.ValueBindingValueExpressionAdapter.getValue(ValueBindingValueExpressionAdapter.java:95)
	at com.icesoft.faces.component.tree.TreeRenderer.encodeBegin(TreeRenderer.java:142)
	at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:809)
	at com.icesoft.faces.application.D2DViewHandler.renderResponse(D2DViewHandler.java:536)
	at com.icesoft.faces.application.D2DViewHandler.renderResponse(D2DViewHandler.java:543)
	at com.icesoft.faces.application.D2DViewHandler.renderResponse(D2DViewHandler.java:543)
	at com.icesoft.faces.application.D2DViewHandler.renderResponse(D2DViewHandler.java:543)
	at com.icesoft.faces.application.D2DViewHandler.renderResponse(D2DViewHandler.java:543)
	at com.icesoft.faces.application.D2DViewHandler.renderResponse(D2DViewHandler.java:519)
	at com.icesoft.faces.application.D2DViewHandler.renderView(D2DViewHandler.java:161)
	at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:108)
	at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:266)
	at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:159)
	at com.icesoft.faces.webapp.xmlhttp.PersistentFacesState.render(PersistentFacesState.java:152)

import javax.faces.context.FacesContext;
import javax.faces.event.PhaseEvent;
import javax.faces.event.PhaseId;
import javax.faces.event.PhaseListener;
import javax.servlet.http.HttpServletRequest;
import org.springframework.context.i18n.LocaleContextHolder;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import static org.springframework.web.context.request.RequestContextHolder.*;

/**
 * This class is necessary to set the Spring context on ICEFaces server pushes.
 * 
 * @author felipeal
 *
 */
public class SpringICEFacesIntegrationPhaseListener implements PhaseListener {

  public void afterPhase(PhaseEvent event) {
    // do nothing
  }

  public void beforePhase(PhaseEvent event) {
    if ( getRequestAttributes() == null ) {
      final FacesContext context = event.getFacesContext();
      final HttpServletRequest request = (HttpServletRequest) context.getExternalContext().getRequest();
      final ServletRequestAttributes attributes = new ServletRequestAttributes(request);
      LocaleContextHolder.setLocale(request.getLocale());
      RequestContextHolder.setRequestAttributes(attributes);
    }
  }

  public PhaseId getPhaseId() {
    return PhaseId.RENDER_RESPONSE;
  }

  /**
    * This method must be explicitiy called by Managed Beans after they
    * rendered ICEFaces stuff.
    */ 
  public static void releaseContext() {
    if ( getRequestAttributes() != null ) {
      RequestContextHolder.setRequestAttributes(null);
      LocaleContextHolder.setLocale(null);
    }
  }

}

protected class AbstractManagedBean {

  private PersistentFacesState persistentFacesState = null;

  public AbstractManagedBean {
    persistentFacesState = PersistentFacesState.getInstance();
  }
  
  /**
   * Initiates server-push
   */
  protected void render() throws RenderingException {
      try {
        persistentFacesState.render();
      } finally {
        SpringICEFacesIntegrationPhaseListener.releaseContext();
      }
  }
}

<faces-config>
  <lifecycle>    
<phase-listener>SpringICEFacesIntegrationPhaseListener</phase-listener>
  </lifecycle>
<application>
<el-resolver>org.springframework.web.jsf.el.SpringBeanFacesELResolver</el-resolver>
  </application>
</faces-config>

public class SpringICEFacesIntegrationPhaseListenerTest {
  
  private final SpringICEFacesIntegrationPhaseListener listener = new SpringICEFacesIntegrationPhaseListener();
  
  public void testBeforePhase() {
    // set mock context
  final PhaseEvent event = new PhaseEvent(context,PhaseId.RENDER_RESPONSE,lifecycle);
  assertNull( "context was already set", getRequestAttributes() );
    final PhaseEvent event = new PhaseEvent(context,PhaseId.RENDER_RESPONSE,lifecycle);
    assertNull( "context was already set", getRequestAttributes() );
    listener.beforePhase(event);
    assertNotNull( "listener did not set context", getRequestAttributes() );
  }

  public void testCalledOnce() {
    // set mock context
    assertNull( "context should be set before", getRequestAttributes() );
    final PhaseEvent event = new PhaseEvent(context,PhaseId.RENDER_RESPONSE,lifecycle);
    listener.beforePhase(event);
    // verify mocks to assert listener didn't call methods
  }
}

1. Teaching attributes on Servlet courses
2. Teaching interfaces (once you reach the attributes class, this is a good example of interface use)
3. Provide an easy (although not necessarily more efficient) way to write code that store attribute in many different scopes (like JSTL set tag):

   
   
   public void set( String var, String scope, Object value ) {
     AttributeHolder holder = attHolders.getHolder( scope );
     if ( holder == null ) {
       throw new BlaBlaException( "invalid scope: " + scope );
     }
     holder.setAttribute( var, value );
   }
   
   
   

• not saving test plan before running a test: on purpose, so I could talk about the extension (.jmx)
• failure due to lack of cookie manager - on purpose
• failure because of ViewStage - on purpose
• big mess as proxy was not stopped - my bad :-(
• forget to add ${viewState} - my mistake again, although not a big deal

• the JavaOne crew (the stage guys, the speaking coach, etc...)
• the guy who suggested I should stop the proxy
• everyone that helped me find a red request in the screen
• Ed Burns
• and a special thanks to Dell - had the laptop worked smoothly, the presentation wouldn't be half that funny!

firefox -P sidekickProfile

firefox -ProfileManager

MOZ_NO_REMOTE=hell,yes firefox -P sidekickProfile
MOZ_NO_REMOTE= firefox -ProfileManager

alias ff2=`MOZ_NO_REMOTE= firefox -P sidekickProfile`
alias pm=`MOZ_NO_REMOTE= firefox -ProfileManager`

semifinal class SuperClass {
   protected void m1() { 
   }
   protected void m2() { 
   }
   public void m3() {
   }
}

class SubClass extends SuperClass { 

   // declaration below is valid: same access level (protected)
   protected void m1() { 
   }

   // declaration below is not valid: more accessible (public)
   public void m2() { 
   }

   // declaration below is valid: overriding public method
   public void m3() { 
   }

   // declaration below is valid: new method, but private
   private void myMethod() { 
   }

   // declaration below is not valid: new public method
   public void myExtendedMethod() { 
   }
} 

semifinal MyObject o = getMyObject();
if ( o == null ) {
  o = new MyObject();
}
// from this point on, o is final and cannot be changed

final MyObject tmpObject = getMyObject(); // dirty hack
final MyObject o = tmpObject != null ? tmpObject : new MyObject();

MyObject o = getMyObject();
if ( o == null ) {
  o = new MyObject();
}
// o can be changed, as it is not final

semifinal MyObject o = null;
try {
   o = getMyObject(); // getMyObject() throws NastyException, which is checked
   // from this point on, o is final and cannot be changed
} catch( NastyException e ) {
  throw new NastyRuntimeException( "o is a nasty reference. No dessert for it!", e ); 
}
// we must use o from this point on, but it should not be changed

MyObject tmpObject = null;
try {
   tmpObject = getMyObject(); // getMyObject() throws NastyException, which is checked
   // from this point on, o is final and cannot be changed
} catch( NastyException e ) {
  throw new NastyRuntimeException( "o is a nasty reference. No dessert for it!", e ); 
}
final MyObject o = tmpObject;

MyObject o = null;
try {
   o = getMyObject(); // getMyObject() throws NastyException, which is checked
   // from this point on, o is final and cannot be changed
} catch( NastyException e ) {
  throw new NastyRuntimeException( "o is a nasty reference. No desert for it!", e ); 
}
// we must use o from this point on, but it can be changed as it is not final

protected abstract semifinal void doIt();

• suggestion for a new (useless :-) Java keyword
• an useful Mozilla/Linux tip
• rants about Ubuntu
• JUnitFactory and its possibilities
• nice-to-have Google features
• Java EE productivity
• Netbean issues
• Eclipse improvements
• cool Eclipse tips
• Cactus and DbUnit 'state of union'
• useful annotations usage
• JCP, OSS and personal expectations
• ... and so on

package net.felipeal;

import java.util.ArrayList;

public abstract class DAO<EntityInterface, EntityImpl extends EntityInterface> {
  
  private final Class<EntityImpl> entityClass;
  
  public DAO( final Class<EntityImpl> clazz ) {
    this.entityClass = clazz;
  }

  public List<EntityInterface> getEntities() {
    return getObjects(this.entityClass);
   }

  public <TInterface, TImpl extends TInterface> List<TInterface> getObjects(Class<TImpl> clazz) {
    return new ArrayList<TInterface>();
  }

}

package net.felipeal;

import java.util.List;

public class ProductDAO extends DAO<Product, ProductImpl> {

  public ProductDAO {
    super(ProductImpl.class);
  }
  
  public static void main(String[] args) {
    final ProductDAO dao = new ProductDAO();
    final List<Product> products = dao.getEntities();
    final List<Customer> customers = dao.getObjects(CustomerImpl.class);
  }

}

[felipeal@localhost src]$ javac net/felipeal/DAO.java
net/felipeal/DAO.java:15: incompatible types
found   : java.util.List
required: java.util.List
    return getObjects(this.entityClass);
                     ^
1 error

package net.felipeal;

import java.util.ArrayList;
import java.util.List;

public class DAO<EntityInterface, EntityImpl extends EntityInterface> {
  
  private final Class<EntityImpl> entityClass;
  
  public DAO( final Class<EntityImpl> clazz ) {
    this.entityClass = clazz;
  }

  public List<EntityInterface> getEntities() {
    final List<EntityInterface> list =  getObjects(this.entityClass);
    return list;
   }

  public <TInterface> List<TInterface> getObjects(Class<? extends TInterface> clazz) {
    return new ArrayList<TInterface>();
  }

}

Type mismatch: cannot convert from List to List  bug-generics/src/net/felipeal DAOB.java line 15

• J2EE 1.2 (from http://java.sun.com/j2ee/1.2_compatibility.html):
  
  18 companies licensed 20 implementations
• J2EE 1.3 (from http://java.sun.com/j2ee/compatibility_1.3.html):
  
  21 companies licensed 29 implementations
• J2EE 1.4 (from http://java.sun.com/j2ee/compatibility_1.4.html):
  
  13 companies/organizations* licensed 13 implementations
  
  *This release had several open-source implementations delivered by non-profit organizations (such as Apache Software Foundation).
  
• JavaEE 5 (from http://java.sun.com/javaee/overview/compatibility.jsp):
  
  2 companies licensed 2 implementations

NetBeans Enterprise Pack is also known to run on the following platforms:

*some unmentionable OS*
Solaris™ 8 OS (SPARC and x86/x64 Platform Edition) and Solaris 9 OS (SPARC and x86/x64 Platform Edition)
Mac OS X 10.4
Various other Linux distributions

The problem and its solution

for i in `find . -name *.pack.gz|xargs`; 
do 
  unpack200 $i `echo $i | sed ’s/\(.*\).pack.gz/\1/g’`; 
done

Final thoughts

• networking: that's more important than the technical side
• partying: there is no better way to network than drinking a beer or playing pool :-)
• tourism: it's always nice to visit another country, specially one where you lived before
• marketing: the marketing is not really that evil and you can get good swag at the conference, mainly books and t-shirts.
• sessions and BOFs: sure, they're important also...

• watch Batman Begins at IMAX - IMAX is awesome and we don't have it in Brazil, so it's mandatory to watch whatever is showing there (although I didn't watch Harry Potter last year). Besides, Christopher Nolan is a good director and the cast is first class.
• watch Episode III again - I haven't watched it for the second time yet because I was hoping IMAX was showing it...
• go to the Borland party - I missed most of the party in the last 2 years because of BOFs (last year, for instance, my BOF was at the same day and from 10:30-11:30). This year I checked the schedule and I'm good to go.
• go to other Java parties as well - there are so many this year is hard to remember all: Communities, Maven/JuG, JXTA, Sun Certified, JBoss, Pavillion, etc. I even got accidently invited to a JavaOne Wireless & Entertainment Summit Dinner...
• Broadway night live - well, the conference is not the only places where you can party...
• drink different beers - I really enjoy the variety of beers available in California: Guiness, Sierra Nevada, Stella Anchor (?), Pyramid, etc... It's hard to find these beers in Brazil and even when you find then, they're expensive
• eat Thai and Indian food - they're also rare/expensive here
• go to "The House of the Nanking" - that's a classic Chinese restaurant (although my Chinese friends don't like it too much)
• meet old friends and make new ones - as I said, networking is one of the main reasons the conference is worth your grants
• play "The Creature from the Black Lagoon" - that's a classic pinball and I used to play it daily when I worked in a startup in the Valley. Since I left the company, I have never found that machine again, until last year's conference. I don't need to say I had spent a whole morning playing it...
• get an Eclipse T-Shirt on the Treasure Hunt - that's as classic as spinning the wheel
• watch the parade - last year I didn't plan to, but had to cross market on my way to the JCP Licensee day. This year it's going to happen the same, as there is a Netbeans day on Sunday. But in the end, the parade is fun.
• visit the Fisherman's Wharf - that's the ideal place to have dinner after the conference is over.
• buy a pre-paid mobile card - it's good to be reachable, specially with so many parties to go!
• take a picture with Duke - my son loves it
• write about the conference - I did an article for Java Magazine in 2003, but last year I wasn't in the mood. This year is going to be different and I'm planning to blog/write about the conference daily (well, this blog is already a good start :-)
• watch a handful of sessions - every year it's the same drill: I spend hours selecting dozens of sessions to fulfill my whole schedule, but in the end I watch just a couple or two, expending most of the time in the pavillion (or playing the Creature :-)
• win a Java jacket - well, that's something I haven't controll of, but I'm confident I will get one at the spinning wheel or in a raffle :-)