CODEWITHSUNDEEP
javanetbeansjarnlp
S Gaber
S Gaber

Reputation: 1560

Incompatible initial and maximum heap sizes specified

I got this Error when I run a java class which has an NLP library .... 

Error occurred during initialization of VM
Incompatible initial and maximum heap sizes specified

any idea how i can solve this error :)

Upvotes: 23

Views: 81576

Answers (2)

vinay j
vinay j

Reputation: 305

set _JAVA_OPTIONS=-Xms128m in you environment variables, I have attached screenshot for reference. you can set the memeory accordingly. This happens because JVM was not allocated the memory required.

enter image description here

Upvotes: 0

Marek Sebera
Marek Sebera

Reputation: 40621

You should note that in case of setting initial heap size bigger than maximum one, application will produce such error

-Xms means initial heap size
-Xmx means maximum heap size allowed for particular JVM

  • java -Xms128m MyClass
    • WRONG, because default maximum heap size could be lower than 128m
  • java -Xms128m -Xmx128m MyClass
    • BETTER, because initial size is equal or higher than maximum

Read more here http://javahowto.blogspot.com/2006/06/6-common-errors-in-setting-java-heap.html

And useful is too, to understand those two arguments, read more here if you're interested:

Speed tradeoff of Java's -Xms and -Xmx options
What are the Xms and Xmx parameters when starting JVMs?

Upvotes: 34

Related Questions