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This is a simple implementation of a tracee backend. It might be used for system where no supported logging framework is present or for test purpose.

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package io.tracee.backend.threadlocalstore;

import java.util.HashMap;
import java.util.Map;

class ThreadLocalMap extends InheritableThreadLocal> {

    @Override
    protected final Map initialValue() {
        return new HashMap();
    }

    @Override
    protected final Map childValue(Map parentValue) {
        if (parentValue == null) {
            return null;
        } else {
            return new HashMap(parentValue);
        }
    }
}