Dec 16, 2014 · A monitor is an entity that possesses both a lock and a wait set. In Java, any Object can serve as a monitor. For a detailed explanation of how monitors work in Java, I …

Mar 24, 2012 · When reading articles about Java threads, I often notice the expression: "current thread is the owner of this object's monitor". I get the meaning: the thread gets the right to …

Apr 2, 2018 · Monitors Monitor is a synchronization construct that allows threads to have both mutual exclusion (using locks) and cooperation i.e. the ability to make threads wait for certain …

Oct 1, 2019 · In the context of Java programming, the monitor is the intrinsic lock (where intrinsic means "built-in") on a Java object. For a thread to enter any synchronized instance method on …

Aug 24, 2010 · 5 It needs to own the monitor, since the purpose of the wait () is to release the monitor and let other threads obtain the monitor to do processing of their own. The purpose of …

52 I want to watch a directory for file changes. And I used WatchService in java.nio. I can successfully listen for file created event. But I can't listen for file modify event. I checked official …

Feb 22, 2011 · The first Java releases where only provided of Threads. Since the Java Tiger (5.0), new classes have been introduced to handle concurrency. In particular, a complete package …

Can I check heap usage of a running JVM from the commandline, I mean the actual usage rather than the max amount allocated with Xmx. I need it to be commandline because I don't have …

There are tools that let you monitor the VM's memory usage. The VM can expose memory statistics using JMX. You can also print GC statistics to see how the memory is performing …

Jan 30, 2009 · 120 I've written a log file monitor before, and I found that the impact on system performance of polling the attributes of a single file, a few times a second, is actually very …