Post-Upgrade Recovery File Generation Results in OOM If Size of BodyContent Is Really Large

2015-04-26 00:23:03,049 INFO [localhost-startStop-1] [confluence.upgrade.recovery.ConfluenceProgressMonitor] end TABLE_DATA: [bandana]
2015-04-26 00:23:03,049 INFO [localhost-startStop-1] [confluence.upgrade.recovery.ConfluenceProgressMonitor] begin TABLE_DATA: [bodycontent]
2015-04-26 00:24:46,119 WARN [localhost-startStop-1] [v2.c3p0.impl.NewPooledConnection] handleThrowable [c3p0] A PooledConnection that has already signalled a Connection error is still in use!
2015-04-26 00:24:46,119 WARN [localhost-startStop-1] [v2.c3p0.impl.NewPooledConnection] handleThrowable [c3p0] Another error has occurred [ com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed. ] which will not be reported to listeners!
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed.
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
	at java.lang.reflect.Constructor.newInstance(Unknown Source)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:389)
	at com.mysql.jdbc.Util.getInstance(Util.java:372)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:958)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:937)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:872)
	at com.mysql.jdbc.ConnectionImpl.throwConnectionClosedException(ConnectionImpl.java:1236)
	at com.mysql.jdbc.ConnectionImpl.checkClosed(ConnectionImpl.java:1231)
	at com.mysql.jdbc.ConnectionImpl.setAutoCommit(ConnectionImpl.java:4811)
	at com.mchange.v2.c3p0.impl.NewProxyConnection.setAutoCommit(NewProxyConnection.java:881)
	at com.atlassian.confluence.upgrade.recovery.DefaultRecoveryFileGenerator.generate(DefaultRecoveryFileGenerator.java:91)
	at com.atlassian.confluence.upgrade.impl.DefaultUpgradeManager.entireUpgradeFinished(DefaultUpgradeManager.java:307)
	at com.atlassian.confluence.upgrade.PluginFrameworkDependentUpgrader.startup(PluginFrameworkDependentUpgrader.java:29)
	at com.atlassian.config.lifecycle.DefaultLifecycleManager.startUp(DefaultLifecycleManager.java:40)
	at com.atlassian.config.lifecycle.LifecycleServletContextListener.contextInitialized(LifecycleServletContextListener.java:17)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4973)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5467)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
	at java.util.concurrent.FutureTask.run(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.OutOfMemoryError: Java heap space

-Xms10240m -Xmx10240m 

-Dconfluence.upgrade.recovery.file.enabled=false