CacheModels use ObjectOutput#writeUTF to cache String fields

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 6.2.X EE, 7.0.X, 7.1.X, 7.2.X, Master
• Fix Version/s: 7.0.0 DXP FP91, 7.0.X, 7.1.10 DXP FP17, 7.1.10.4 SP4, 7.1.X, 7.2.10 DXP FP5, 7.2.10.2 DXP SP2, 7.2.X, 7.3.1 CE GA2, 7.3.2 CE GA3, Master
• Component/s: Core Infrastructure > Service Builder, Performance > Caching Infrastructure
• Labels:
  • ee-ts
  • hh
  • liferay-dxp-71-sp4
  • liferay-dxp-72-sp2
  • liferay-fixpack-de-91-7010
  • liferay-fixpack-dxp-17-7110
  • liferay-fixpack-dxp-5-7210
  • pt-app-security-review
• Branch Version/s:
  7.2.x, 7.1.x, 7.0.x
• Backported to Branch:
  Committed
• Fix Priority: 3
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/86211

The generated CacheModel classes' readExternal and writeExternal methods use readUTF and writeUTF to cache String fields.

These methods will throw a UTFDataFormatException if  the field being serialised is larger than 65536 bytes.

It is possible to have a Web Content, a Wiki Page or a Blog Page to have content longer than 64KBs, so caching those would trigger the UTFDataFormatException.