Online Free Tutorials Guruji Guide & Materials – Solved Questions Answers
From what I’ve read online, it sounds like a lot of people recommend setting the -XX:+PerfDisableSharedMem JVM flag to fix high GC pause latencies due to IO blocking when the garbage collector tries …
I know that JVM will be smarter as the time goes on (optimize code, etc …). But how smarter can it be? Let’s consider some real scenario, that I often see. public static String toJson(final Object …
I’ve been wondering where interpreted byte-code of methods are stored internally in the JVM (specifically HotSpot x64). I know that methods that are JIT-ed are stored and can be accessed in the Method …
Eclipse was working fine until today. Every time the autocomplete menu pops up, Eclipse crashes and a Java error log file is created which I have pasted below. For example, if I’m writing the name of …
I’m using inotify nio wrappers to catch file creation in a specific directory. Okay, I have this private final String tmpDir1 = Files.createTempDirectory(null); private final String tmpDir2 = Files….
Here is code: package stacktrace.test; public class A { public static void main(String[] args) { B.f(); } } interface B { static void f() { C.f(); } } interface C { …
I’m just getting back to java, and went and downloaded the latest Eclipse Oxygen. Once it’s all installed, I try to launch and get the following error dialogue. So I went and downloaded Java 8 and …
Does JVM guarantee to cache not volatile variable ? Can a programer depend upon on JVM to always cache non-volatile variables locally for each thread. Or JVM may or may not do this, thus a programer …
This is a followup to this question. MacOS X has the java command under /usr/bin. If one installs the JRE from Oracle, it doesn’t work – claims there’s no Java runtime, and offers to download and …
As part of the compiler for the programming language I am working on, I came across generic signatures in the bytecode, which I am trying to parse and convert to an AST. The parsing algorithm mostly …