Captain Debug's Blog

Java tips, observations, bugs and problems from the world of Spring, Weblogic, Oracle, MySQL and many other technologies...

Blogs on Investigating Deadlocks

  1. Creating code that deadlocks.
  2. Obtaining a thread dump.
  3. Analysing a thread dump.
  4. Fixing the deadlocked code with Lock ordering
  5. Fixing the deadlocked code with ReentrantLock and the tryLock(...) Method

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Roger Hughes
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This Month's Popular Posts

  • Accessing Request Parameters using Spring 3 MVC
    One of the neat things you can do in Spring 3 MVC is to map request parameters into specific controller method input arguments. This is done...
  • Maven’s Non-resolvable parent POM Problem
    I recently got an email from Nosheen Javed asking about an exception he was getting on his Maven build. The exception was: [FATAL] Non-res...
  • Investigating Memory Leaks Part 1 - Writing Leaky Code
    I found this little problem the other day: there’s this server that runs for a while and then falls over. It’s then restarted by its startup...
  • Exception Handling with the Spring 3.2 @ControllerAdvice Annotation
    A short time ago, I wrote a blog outlining how I upgraded my Spring sample code to version 3.2 and demonstrating a few of the little 'go...
  • Spring 3.1: Caching and EhCache
    If you look around the web for examples of using Spring 3.1’s built in caching then you’ll usually bump into Spring’s SimpleCacheManager , w...
  • Using Spring MVC’s @ModelAttribute Annotation
    The @ModelAttribute annotation is used as part of a Spring MVC web app and can be used in two scenarios. Firstly, it can be used to inject...
  • Using the Spring 3 @DateTimeFormat Annotation
    @DateTimeFormat is the complimentary annotation to yesterday’s @NumberFormat and like @NumberFormat it does what it says on the tin and a...
  • Using Spring Profiles in XML Config
    My last blog was very simple as it covered my painless upgrade from Spring 3.0.x to Spring 3.1.x and I finished by mentioning that you can u...
  • Getting Started with Spring Social - Part 2
    A few weeks ago I wrote a blog demonstrating what I thought was the simplest application you could write using Spring Social. This applicati...
  • Spring 3 MVC Exception Handlers
    The majority of the Spring 3 error handling sample code that I’ve come across only ever seems to give the simplest overview of its usage, ye...

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All Time Popular Posts

  • Accessing Request Parameters using Spring 3 MVC
    One of the neat things you can do in Spring 3 MVC is to map request parameters into specific controller method input arguments. This is done...
  • Spring 3 MVC Exception Handlers
    The majority of the Spring 3 error handling sample code that I’ve come across only ever seems to give the simplest overview of its usage, ye...
  • Exception Handling with the Spring 3.2 @ControllerAdvice Annotation
    A short time ago, I wrote a blog outlining how I upgraded my Spring sample code to version 3.2 and demonstrating a few of the little 'go...
  • Using Spring MVC’s @ModelAttribute Annotation
    The @ModelAttribute annotation is used as part of a Spring MVC web app and can be used in two scenarios. Firstly, it can be used to inject...
  • The Benefits Of Dependency Injection
    Dependency Injection is the way to go, so say the Guys at Spring, and who am I to argue with them, after all it sounds like a sensible idea....
  • Spring 3.1: Caching and EhCache
    If you look around the web for examples of using Spring 3.1’s built in caching then you’ll usually bump into Spring’s SimpleCacheManager , w...
  • Using Spring Profiles in XML Config
    My last blog was very simple as it covered my painless upgrade from Spring 3.0.x to Spring 3.1.x and I finished by mentioning that you can u...
  • Maven’s Non-resolvable parent POM Problem
    I recently got an email from Nosheen Javed asking about an exception he was getting on his Maven build. The exception was: [FATAL] Non-res...
  • Using JSR-250’s @PostConstruct Annotation to Replace Spring's InitializingBean
    JSR-250 aka Common Annotations for the Java Platform was introduced as part of Java EE 5 an is usually used to annotated EJB3s. What’s not s...
  • Using Spring Interceptors in your MVC Webapp
    I thought that it was time to take a look at Spring’s MVC interceptor mechanism, which has been around for a good number of years and is a r...
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