Out of memory error in ant

Question

I am trying to run ant task, however I get the following error:

[javadoc] javadoc: error - java.lang.OutOfMemoryError: Please increase memory.
[javadoc] For          


        

Answer 1

The javac ant task has the attribute memoryMaximumSize which you should set to the same value as you would for -Xmx.

<javac memoryMaximumSize="256m" ...>
  ...
</javac>

I should add that this assumes that it is indeed a javac task that's causing the memory overrun.

Answer 2

I solved it.

It had nothing to do with little memory. It was an endeless loop in my javadoc generation.

The correct way of setting more memory for ant is by using export ANT_OPTS=-Xmx256m on *nix.

On Windows follow the usual steps for setting environment variables.