jvm Archives - Page 2 of 5

How to get a thread and heap dump of a Java process on Windows that’s not running in a console

I have a Java application that I run from a console which in turn executes an another Java process. I want to get ...

May 21, 2022
0 Comments

JVM option -Xss – What does it do exactly?

It says here that -Xss is used to “set thread stack size”, what does it mean exactly? Could anyone help me understand this? ...

May 20, 2022
0 Comments

Class JavaLaunchHelper is implemented in both … libinstrument.dylib. One of the two will be used. Which one is undefined

I upgraded to the latest Java 7u40 on MacOS X and started getting the following message on the console when launching my application ...

May 19, 2022
0 Comments

Difference between thread’s context class loader and normal classloader

What is the difference between a thread’s context class loader and a normal class loader? That is, if Thread.currentThread().getContextClassLoader() and getClass().getClassLoader() return different ...

May 19, 2022
0 Comments

What does -XX:MaxPermSize do?

Specifically, why would it help to fix a PermGen OutOfMemoryError issue? Also, bonus points for an answer that points me to the documentation ...

May 18, 2022
0 Comments

What are the best JVM settings for Eclipse? [closed]

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, ...

May 15, 2022
0 Comments

Could not reserve enough space for object heap

I am getting the following exception repeatedly each time I try to run the program. Error occurred during initialization of VM Could not ...

May 15, 2022
0 Comments

Java heap terminology: young, old and permanent generations?

I’m trying to understand What the concepts of young, old and permanent generations are in the Java heap terminology, and more specifically the ...

May 13, 2022
0 Comments

How do I set the proxy to be used by the JVM

Many times, a Java app needs to connect to the Internet. The most common example happens when it is reading an XML file ...

May 12, 2022
0 Comments

What is the difference between JVM, JDK, JRE & OpenJDK?

What is the difference between JVM, JDK, JRE & OpenJDK? I was programming in Java and I encountered these phrases, what are the ...

May 11, 2022
0 Comments