I got this outOfMemory Permgen space error in our application.

This started when i configured c3po connection pooling in my hibernate.cfg.xml. Here's an excerpt from hibernate.cfg.xml:


<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>


<property name="c3p0.acquire_increment">1</property>
<property name="c3p0.idle_test_period">100</property> <!-- seconds -->
<property name="c3p0.max_size">100</property>
<property name="c3p0.max_statements">0</property>
<property name="c3p0.min_size">10</property>
<property name="c3p0.timeout">100</property>


i noticed i set c3po but i did not remove the "connection.pool_size" property.
Could this be connected to the permgen error i'm getting?

Is there something in hibernate that can be configured to prevent this permgen space error?

Increase your Permgen space allocated by the JVM. It is a command line argument.