I have a network of Java Threads (Flow-Based Programming) communicating via fixed-capacity channels - running under WindowsXP. What we expected, based on our experience with "green" threads (non-preemptive), would be ... |
What is the difference between a thread's context class loader and a normal classloader.
That is, if Thread.currentThread().getContextClassLoader() and getClass().getClassLoader() return different class loader objects, which one will be used?
|
I've written a custom classloader 'JarClassLoader', which itself works ok, since the following test case is green:
public void testJarClassLoader() throws Exception
{
JarClassLoader cl = new JarClassLoader();
...
|
I'm not entirely sure how I got to this situation but somehow I'm getting a null ClassLoader from Thread.getContextClassLoader. After reading a little (not much info in the docs nor on ... |
As I understand that in process context switching the OS 'backups' the registers and instruction pointer (also part of register).
But in case of switching among threads within a process will the ... |
If I have a program invoked in the following way
java -cp a.jar;b.jar;c.jar MainClass
All the classes from a.jar, b.jar, and c.jar will be available to all the threads in my program. I'd ... |
Let's assume each thread is doing some FP calculation, I am interested in
- how much time the CPU is used in switching threads instead of running them
- how much synchronization traffic is created ...
|
|
Web Server has to process requests from lots of clients simultaneously. Graphical User Interface re-drawing a large without locking up the menus, mouse, buttond. I am playing an MP3 and yet still I can type. Speeding up sections of a program where you have a CPU-bound process and an I/O-bound process. If you do them at the same time, the ... |
Scenario: Assume a scenario where there are a large number of threads waiting for CPU time. The OS is serving a thread which has established a socket connection with a remote client. The remote client has started transferring a large file through the connection. Question: If the time required to transfer the file through the socket is longer than the context-switch ... |
|
Hi, I am facing an issue with accessing a Web context in a Java thread. I have a generic class which does an insert in the Oracle table. The resource for Oracle connection is mentioned in the Web resources. Accessing this class from a servlet drectly does not cause any issue and a record can be directly inserted into the database. ... |
I have a single threaded application that supports 3rd party plugins. In this architecture, each plugin is loaded by a separate URLClassLoader instance. Once loaded, the application can call the plugin through a pre-defined interface. One problem I'm running into is a plugin that tries to use the thread's context classloader, which is the application classloader by default, to load a ... |
I develop a web application,deployed some POJO(Business Object) in server,Please confirm whether my understanding correct? 1)When many users access the same business object then server server create several logical or virtual contexts ,in each context all business objects exist,if property of a business object is changed in one context it never change the value of the property in another context. if ... |
Hello. I have scenario like this: Call from JAVA->c++ >JAVA When I call JAVA defined oeprations (kind of call back) from C++ app(called by java) immediately after receiving the call from JAVA, it works fine. C++ call from JAVA initiates a chain/ stack of subsequent calls (which may spawn a new process/ thread), and finally a call is again made from ... |