What version of OR-Tools and what language are you using?
Version: 9.10.4067

Language: C++/Java/Python/C#
Java

Which solver are you using (e.g. CP-SAT, Routing Solver, GLOP, BOP, Gurobi)
SCIP
MPSolver solver = new MPSolver("SCIP", MPSolver.OptimizationProblemType.SCIP_MIXED_INTEGER_PROGRAMMING);

What operating system (Linux, Windows, ...) and version?
NAME="Oracle Linux Server"
VERSION="8.5"

What did you do?
The model I am solving is not very large in scale, but I will serially call to solve dozens to hundreds of models of similar scale, resulting in an increase in memory. I will investigate if it is not the JVM's heap memory and out of heap memory because I have printed out the heap memory and out of heap memory, which is likely caused by or-tools memory leakage

What did you expect to see

What did you see instead?

Make sure you include information that can help us debug (full error message, model Proto).

Anything else we should know about your project / environment