辞書画面を開くとエラーが表示される

(from osdn.net/users/maestro76)
辞書画面にてシノニムやユーザー辞書を開こうとすると以下のエラーが出て開くことができません。
この状態になるのは何が原因でしょうか?
java.lang.OutOfMemoryError: Compressed class space と出ておりますがメモリは十分な量があると思っています。


2017-01-29 08:45:25,597 [ajp-nio-8009-exec-21] ERROR パス /admin/systemInfo に対するアクションのインスタンスがありません
org.seasar.framework.exception.InvocationTargetRuntimeException: [ESSR0043]java.lang.ClassLoaderが呼び出した対象が不正です。理由はjava.lang.OutOfMemoryError: Compressed class space
at org.seasar.framework.aop.javassist.AbstractGenerator.toClass(AbstractGenerator.java:288)
at org.seasar.framework.aop.javassist.MethodInvocationClassGenerator.toClass(MethodInvocationClassGenerator.java:85)
at org.seasar.framework.aop.javassist.AspectWeaver.setInterceptors(AspectWeaver.java:139)
at org.seasar.framework.aop.proxy.AopProxy.setupAspects(AopProxy.java:150)
at org.seasar.framework.aop.proxy.AopProxy.(AopProxy.java:110)
at org.seasar.framework.container.util.AopProxyUtil.getConcreteClass(AopProxyUtil.java:54)
at org.seasar.framework.container.impl.ComponentDefImpl.getConcreteClass(ComponentDefImpl.java:140)
at org.seasar.framework.container.assembler.AutoConstructorAssembler.getSuitableConstructor(AutoConstructorAssembler.java:58)
at org.seasar.framework.container.assembler.AutoConstructorAssembler.doAssemble(AutoConstructorAssembler.java:42)
at org.seasar.framework.container.assembler.AbstractConstructorAssembler.assemble(AbstractConstructorAssembler.java:55)
at org.seasar.framework.container.deployer.RequestComponentDeployer.deploy(RequestComponentDeployer.java:65)
at org.seasar.framework.container.impl.ComponentDefImpl.getComponent(ComponentDefImpl.java:111)
at org.seasar.struts.config.S2ActionMapping.getAction(S2ActionMapping.java:320)
at org.seasar.struts.action.ActionWrapper.(ActionWrapper.java:76)
at org.seasar.struts.action.S2RequestProcessor.processActionCreate(S2RequestProcessor.java:236)
at org.seasar.struts.action.S2RequestProcessor.process(S2RequestProcessor.java:128)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1216)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:434)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.seasar.framework.container.hotdeploy.HotdeployFilter.doFilter(HotdeployFilter.java:71)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.seasar.framework.container.filter.S2ContainerFilter.doFilter(S2ContainerFilter.java:79)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.seasar.extension.filter.EncodingFilter.doFilter(EncodingFilter.java:69)
at jp.sf.fess.filter.FessEncodingFilter.doFilter(FessEncodingFilter.java:124)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:721)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:466)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:391)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:318)
at org.seasar.struts.filter.RoutingFilter.forward(RoutingFilter.java:219)
at org.seasar.struts.filter.RoutingFilter.doFilter(RoutingFilter.java:99)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at jp.sf.fess.filter.WebApiFilter.doFilter(WebApiFilter.java:55)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.codelibs.sastruts.core.filter.AuthFilter.doFilter(AuthFilter.java:127)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.seasar.framework.container.hotdeploy.HotdeployFilter.doFilter(HotdeployFilter.java:71)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.seasar.framework.container.filter.S2ContainerFilter.doFilter(S2ContainerFilter.java:79)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.seasar.extension.filter.EncodingFilter.doFilter(EncodingFilter.java:69)
at jp.sf.fess.filter.FessEncodingFilter.doFilter(FessEncodingFilter.java:124)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at org.apache.coyote.ajp.AbstractAjpProcessor.process(AbstractAjpProcessor.java:844)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1526)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1482)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.OutOfMemoryError: Compressed class space

(from osdn.net/users/shinsuke)
https://github.com/codelibs/fess-server/blob/9.4.x/src/tomcat/bin/setenv.sh#L7
あたりの -XX:CompressedClassSpaceSize=32mを調整してください。
この設定がないような古いFessはアップグレードするか、
Java 8以前の環境で動かすなどが良いように思います。

(from osdn.net/users/maestro76)
ご回答ありがとうございます。

https://github.com/codelibs/fess-server/blob/9.4.x/src/tomcat/bin/setenv.sh#L7
あたりの -XX:CompressedClassSpaceSize=32mを調整してください。
この設定がないような古いFessはアップグレードするか、
Java 8以前の環境で動かすなどが良いように思います。

上記の内容を調整したいのですが現状では

CompressedClassSpaceSize=32m

になっております。
いくつくらいの調整するのがいいでしょうか?