Unable to run drools project with JDK17

[Nivetha]

Hi,

     I'm facing below issue while running drool project with JDK17. What is the latest JDK  compatible version for drool?

Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make field private final java.util.Comparator java.util.TreeMap.comparator accessible: module java.base does not "opens java.util" to unnamed module @3b938003
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:354)
at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297)
at java.base/java.lang.reflect.Field.checkCanSetAccessible(Field.java:178)
at java.base/java.lang.reflect.Field.setAccessible(Field.java:172)
at com.thoughtworks.xstream.core.util.Fields.locate(Fields.java:40)
at com.thoughtworks.xstream.converters.collections.TreeMapConverter.<clinit>(TreeMapConverter.java:50)

Regards

Nivetha R

[Manikandan Mp]

May I know drools version?

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[Manikandan Mp]

Drools 8 series required min JDK 11.

[James Downes]

We run Drools 7.47.0.Final with Java17 quite happily.

James

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