org.logicalcobwebs.proxool 连接池异常

2011/05/09 09:59:44:695 ERROR [org.logicalcobwebs.proxool.poool] - Prototype
org.logicalcobwebs.proxool.ProxoolException: Unexpected prototyping problem
    at org.logicalcobwebs.proxool.Prototyper.buildConnection(Prototyper.java:229)
    at org.logicalcobwebs.proxool.Prototyper.sweep(Prototyper.java:102)
    at org.logicalcobwebs.proxool.PrototyperThread.run(PrototyperThread.java:44)
Caused by: java.lang.OutOfMemoryError: PermGen space
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
    at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2818)
    at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1159)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1647)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:430)
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:302)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:283)
    at java.sql.DriverManager.getConnection(DriverManager.java:582)
    at java.sql.DriverManager.getConnection(DriverManager.java:154)
    at org.logicalcobwebs.proxool.DefaultConnectionBuilder.buildConnection(DefaultConnectionBuilder.java:39)
    at org.logicalcobwebs.proxool.Prototyper.buildConnection(Prototyper.java:159)
    ... 2 more
Caused by:
java.lang.OutOfMemoryError: PermGen space
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
    at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2818)
    at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1159)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1647)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:430)
    at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:302)
    at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:283)
    at java.sql.DriverManager.getConnection(DriverManager.java:582)
    at java.sql.DriverManager.getConnection(DriverManager.java:154)
    at org.logicalcobwebs.proxool.DefaultConnectionBuilder.buildConnection(DefaultConnectionBuilder.java:39)
    at org.logicalcobwebs.proxool.Prototyper.buildConnection(Prototyper.java:159)
    at org.logicalcobwebs.proxool.Prototyper.sweep(Prototyper.java:102)
    at org.logicalcobwebs.proxool.PrototyperThread.run(PrototyperThread.java:44)
2011-5-9 9:59:48 org.apache.catalina.core.ApplicationContext log
严重: StandardWrapper.Throwable
java.lang.OutOfMemoryError: PermGen space
2011-5-9 9:59:48 org.apache.catalina.core.StandardContext loadOnStartup
严重: Servlet /BaseWork threw load() exception
java.lang.OutOfMemoryError: PermGen space
2011-5-9 9:59:50 org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor processChildren
严重: Exception invoking periodic operation:
java.lang.OutOfMemoryError: PermGen space