Editor can not publish large page with "Maximum entity expansion count limit (100000) exceeded" reported in the logs

Issue Summary

Page fails to save when with a large amount of text (see below attached sample).

This is reproducible on Data Center: yes

Steps to Reproduce

1. Create a new page in Confluence
2. Open the attached file in a text editor
   large_page_text.txt
3. Copy the contents of the above text file and paste it directly into the Confluence editor
4. Save the page

Expected Results

1. The page is published successfully

Actual Results

1. The page fails to publish
   
2. The back end atlassian-confluence.log shows this error:

   Caused by: javax.xml.stream.XMLStreamException: Maximum entity expansion count limit (100000) exceeded
   

   Full log error

   2022-12-16 10:52:01,088 WARN [http-nio-6800-exec-9] [confluence.impl.hibernate.ConfluenceHibernateTransactionManager] doRollback Performing rollback. Transactions:
     ->[com.atlassian.confluence.api.impl.service.content.draft.ContentDraftServiceImpl.publishNewDraft]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT (Session #770301444)
    -- url: /c800/rest/api/content | userName: admin | referer: http://localhost:6800/c800/pages/createpage.action?spaceKey=PD | traceId: 4241b58bf74213ff
   2022-12-16 10:52:01,089 ERROR [http-nio-6800-exec-9] [rest.api.model.ExceptionConverter] convertServiceException No status code found for exception, converting to internal server error :
    -- url: /c800/rest/api/content | userName: admin | referer: http://localhost:6800/c800/pages/createpage.action?spaceKey=PD | traceId: 4241b58bf74213ff
   com.atlassian.confluence.api.service.exceptions.ServiceException: java.lang.RuntimeException: javax.xml.stream.XMLStreamException: Maximum entity expansion count limit (100000) exceeded
   	at com.atlassian.confluence.api.impl.service.content.ContentBodyConversionManagerImpl.lambda$computeConversionResources$1(ContentBodyConversionManagerImpl.java:109)
   	at com.atlassian.confluence.api.impl.ReadOnlyAndReadWriteTransactionConversionTemplate.executeInReadWrite(ReadOnlyAndReadWriteTransactionConversionTemplate.java:65)
   	at com.atlassian.confluence.api.impl.service.content.ContentBodyConversionManagerImpl.computeConversionResources(ContentBodyConversionManagerImpl.java:96)
   	at com.atlassian.confluence.api.impl.service.content.ContentBodyConversionManagerImpl.convert(ContentBodyConversionManagerImpl.java:89)
   	at com.atlassian.confluence.api.impl.service.content.ContentBodyConversionServiceImpl.convert(ContentBodyConversionServiceImpl.java:65)
   	at com.atlassian.confluence.api.impl.service.content.ContentBodyConversionServiceImpl.convert(ContentBodyConversionServiceImpl.java:54)
   	at com.atlassian.confluence.content.apisupport.ContentCreator.lambda$setContentBodyOnEntity$0(ContentCreator.java:388)
   	at java.base/java.util.Optional.map(Optional.java:265)
   	at com.atlassian.confluence.content.apisupport.ContentCreator.setContentBodyOnEntity(ContentCreator.java:388)
   	at com.atlassian.confluence.content.apisupport.ContentCreator.setCommonPropertiesForCreate(ContentCreator.java:134)
   	at com.atlassian.confluence.api.impl.service.content.typebinding.PageContentTypeApiSupport.create(PageContentTypeApiSupport.java:167)
   	at com.atlassian.confluence.api.impl.service.content.typebinding.PageContentTypeApiSupport.create(PageContentTypeApiSupport.java:47)
   	at com.atlassian.confluence.api.impl.service.content.ContentServiceImpl.createUsingApiSupport(ContentServiceImpl.java:124)
   	at com.atlassian.confluence.api.impl.service.content.ContentServiceImpl.create(ContentServiceImpl.java:111)
   ...
   	at com.sun.proxy.$Proxy249.create(Unknown Source)
   	at com.atlassian.confluence.api.impl.service.content.draft.LegacyContentDraftServiceImpl.publishNewDraft(LegacyContentDraftServiceImpl.java:60)
   	at com.atlassian.confluence.api.impl.service.content.draft.ContentDraftServiceImpl.publishNewDraft(ContentDraftServiceImpl.java:35)
   ...
   	at com.sun.proxy.$Proxy255.publishNewDraft(Unknown Source)
   	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
   	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
   	at com.atlassian.plugin.util.ContextClassLoaderSettingInvocationHandler.invoke(ContextClassLoaderSettingInvocationHandler.java:26)
   	at com.sun.proxy.$Proxy451.publishNewDraft(Unknown Source)
   ...
   	at com.sun.proxy.$Proxy2069.publishNewDraft(Unknown Source)
   	at com.atlassian.confluence.plugins.restapi.resources.ContentResource.createContent(ContentResource.java:218)
   ...
   	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399)
   	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
   	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890)
   	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1789)
   	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
   	at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
   	at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
   	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
   	at java.base/java.lang.Thread.run(Thread.java:829)
   Caused by: java.lang.RuntimeException: javax.xml.stream.XMLStreamException: Maximum entity expansion count limit (100000) exceeded
   	at org.codehaus.stax2.ri.evt.Stax2FilteredEventReader.hasNext(Stax2FilteredEventReader.java:60)
   	at com.atlassian.confluence.content.render.xhtml.XmlFragmentEventReader.hasNext(XmlFragmentEventReader.java:42)
   	at com.atlassian.confluence.content.render.xhtml.XmlFragmentBodyEventReader.hasNext(XmlFragmentBodyEventReader.java:36)
   	at com.atlassian.confluence.content.render.xhtml.transformers.DefaultFragmentTransformer.transform(DefaultFragmentTransformer.java:116)
   	at com.atlassian.confluence.plugins.hipchat.emoticons.marshalling.EmoticonTransformerBase.transform(EmoticonTransformerBase.java:60)
   	at com.atlassian.confluence.plugins.hipchat.emoticons.marshalling.EmoticonTransformerEditorToStorage.transform(EmoticonTransformerEditorToStorage.java:37)
   	at com.atlassian.confluence.content.render.xhtml.TransformerChain.transform(TransformerChain.java:33)
   	at com.atlassian.confluence.content.render.xhtml.PluggableTransformerChain.transform(PluggableTransformerChain.java:39)
   	at com.atlassian.confluence.content.render.xhtml.editor.DefaultEditorConverter.convert(DefaultEditorConverter.java:37)
   	at com.atlassian.confluence.content.render.xhtml.DefaultFormatConverter.convertToStorageFormat(DefaultFormatConverter.java:123)
   	at com.atlassian.confluence.content.render.xhtml.DefaultFormatConverter.validateAndConvertToStorageFormat(DefaultFormatConverter.java:73)
   	at com.atlassian.confluence.api.impl.service.content.ContentBodyConversionManagerImpl.computeConvertedValue(ContentBodyConversionManagerImpl.java:163)
   	at com.atlassian.confluence.api.impl.service.content.ContentBodyConversionManagerImpl.lambda$computeConversionResources$0(ContentBodyConversionManagerImpl.java:104)
   	at com.atlassian.confluence.api.impl.service.content.ThreadlocalWebResourceDependenciesRecorder.record(ThreadlocalWebResourceDependenciesRecorder.java:95)
   	at com.atlassian.confluence.api.impl.service.content.ContentBodyConversionManagerImpl.lambda$computeConversionResources$1(ContentBodyConversionManagerImpl.java:98)
   	... 406 more
   Caused by: javax.xml.stream.XMLStreamException: Maximum entity expansion count limit (100000) exceeded
   	at com.ctc.wstx.sr.StreamScanner.constructLimitViolation(StreamScanner.java:2479)
   	at com.ctc.wstx.sr.StreamScanner.verifyLimit(StreamScanner.java:2472)
   	at com.ctc.wstx.sr.StreamScanner.expandEntity(StreamScanner.java:1689)
   	at com.ctc.wstx.sr.StreamScanner.expandEntity(StreamScanner.java:1643)
   	at com.ctc.wstx.sr.StreamScanner.fullyResolveEntity(StreamScanner.java:1575)
   	at com.ctc.wstx.sr.BasicStreamReader.readTextSecondary(BasicStreamReader.java:4786)
   	at com.ctc.wstx.sr.BasicStreamReader.finishToken(BasicStreamReader.java:3810)
   	at com.ctc.wstx.sr.BasicStreamReader.next(BasicStreamReader.java:1131)
   	at com.ctc.wstx.evt.WstxEventReader.peek(WstxEventReader.java:392)
   	at org.codehaus.stax2.ri.evt.Stax2FilteredEventReader.peek(Stax2FilteredEventReader.java:107)
   	at org.codehaus.stax2.ri.evt.Stax2FilteredEventReader.hasNext(Stax2FilteredEventReader.java:58)
   	... 420 more
   

The issue could not be reproduced on Confluence 7.19.0

Workaround

N/A