JasperReport created a ThreadLocal with key of type [java.lang.ThreadLocal] 内存泄漏

net.sf.jasperreports.evaluator.class.reference.fix.enabled

Property that indicates whether a legacy fix for a JVM issue related to evaluator classes generated by JasperReports is enabled. The fix is enabled by default. 

Due to the fix, the garbage collector might not be able to collect a classloader that loaded JasperReports classes. This would be inconvenient in scenarios in which JasperReports classes are repeatedly loaded by different classloaders, e.g. when JasperReports is part of the classpath of a web application which is often reloaded. In such scenarios, set this property to false.

API:PROPERTY_EVALUATOR_CLASS_REFERENCE_FIX_ENABLED 

Default:true

Scope:Global | Context

Since:3.0.0