Top "Jvm-hotspot" questions

HotSpot is the standard Java virtual machine used by both the Oracle and OpenJDK Java runtime environments.

Method Area and PermGen

I was trying to understand the memory structure of HotSpot JVM and got confused with the two terms "Method Area" …

java memory-management jvm jvm-hotspot permgen
What are the differences between JVisualVM and Java Mission Control?

Other than the more 'advanced' GUI from Java mission control, how are they different? At first glance they seem to …

java visualvm jvm-hotspot jvisualvm java-mission-control
Encourage the JVM to GC rather than grow the heap?

(Note that when I say "JVM", I really mean "Hotspot", and I'm running the latest Java 1.6 update.) Example situation: My …

java jvm heap jvm-hotspot jvm-arguments
How do i know which default settings are enabled for Sun JVM?

i want to try CompressedOops on my JVM. No I wonder if it might be enabled by default. I run …

java jvm jvm-hotspot
bootstrap class path not set in conjunction with -source 1.6

I am upgrading my application from java 1.6 to 1.7. When I try to build using Maven 3.2.1, my build fails with below …

classpath maven-3 jvm-hotspot
AES-NI intrinsics enabled by default?

Oracle has this to say about Java 8 with regards to AES-NI: Hardware intrinsics were added to use Advanced Encryption Standard (…

java cryptography aes cpu jvm-hotspot
Setting -XX:MaxRam

According to this link, there is an option to set MaxRamSize manually to restrict the JVM to not use memory …

java performance memory jvm jvm-hotspot
IntelliJ Idea tomcat Hot swap failed: schema change not implemented Operation not supported by VM

I got this error when I try to reload class (hot swap) with changed method bodies in my project. Before …

tomcat intellij-idea jvm jvm-hotspot hotswap
Java fatal error SIGSEGV with no added native code

I am getting an error message from the Java compiler that I don't understand. I've tested my code on OSX 10.6, 10.9, …

java segmentation-fault jvm-hotspot jvm-crash
What is the difference between -Xss and -XX:ThreadStackSize?

I just want to control the stack size for all of my threads in a Java (groovy) application. For the …

java multithreading oracle jvm jvm-hotspot