Initial installation setup failed

I installed Bamboo 0.6 with the full installer and got the error below when configuring the system. This happened after the screen to enter the admin user. Tried on another system, got the same error.

Version: 0.6
Build: 102
Build Date: 03-Nov-2006

Stack Trace: java.lang.NoSuchMethodError: java.lang.Boolean.parseBoolean(Ljava/lang/String;)Z
at com.atlassian.bamboo.container.BambooContainer.reportBuildConfigurationProblems(BambooContainer.java:246)
at com.atlassian.bamboo.container.BambooContainer.start(BambooContainer.java:170)
at com.atlassian.bamboo.ww2.BambooFilterDispatcher.startBambooContainer(BambooFilterDispatcher.java:136)
at com.atlassian.bamboo.ww2.BambooFilterDispatcher.initialise(BambooFilterDispatcher.java:87)
at com.atlassian.bamboo.ww2.BambooFilterDispatcher.beforeActionInvocation(BambooFilterDispatcher.java:49)
at com.opensymphony.webwork.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:189)
at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:823)
at com.opensymphony.module.sitemesh.filter.PageFilter.parsePage(PageFilter.java:118)
at com.opensymphony.module.sitemesh.filter.PageFilter.doFilter(PageFilter.java:52)
at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:823)
at com.opensymphony.webwork.dispatcher.ActionContextCleanUp.doFilter(ActionContextCleanUp.java:78)
at org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:823)