@ParameterKind.Receiver CompositeInterceptorTestReceiver self,
        @ParameterKind.CallerClassName String consumer
    ) {
        self.intercepted = "composite.isTestFlag()";
        return self.isTestFlag();
    }

    @InterceptGroovyCalls
    @CallableKind.GroovyPropertySetter
    public static void intercept_testFlag(
        @ParameterKind.Receiver CompositeInterceptorTestReceiver self,

    public static boolean intercept_testFlag(
        @ParameterKind.Receiver InterceptorTestReceiver self,
        @ParameterKind.CallerClassName String consumer
    ) {
        self.intercepted = "isTestFlag()";
        return self.isTestFlag();
    }

    @InterceptGroovyCalls
    @CallableKind.GroovyPropertySetter
    public static void intercept_testFlag(
        @ParameterKind.Receiver InterceptorTestReceiver self,

        return testString;
    }

    public void setTestString(String newValue) {
        testString = newValue;
    }

    private boolean testFlag = false;

    public boolean isTestFlag() {
        return testFlag;
    }

    public void setTestFlag(boolean newValue) {
        testFlag = newValue;
    }

    public String intercepted = null;

    @Override

        "normal getter"       | "call site" | "getTestString()"                             | { it.testString }                    | false
        "boolean getter"      | "call site" | "isTestFlag()"                                | { it.testFlag }                      | false
        "non-existent getter" | "call site" | "getNonExistentProperty()-non-existent"       | { it.nonExistentProperty }           | false

    }

    public String getTestString() {
        return testString;
    }

    public void setTestString(String newValue) {
        testString = newValue;
    }

    public boolean isTestFlag() {
        return testFlag;
    }

    public void setTestFlag(boolean newValue) {
        testFlag = newValue;
    }

    @Override
    public String toString() {

        "normal getter"       | "call site" | "getTestString()"                             | { it.testString }                    | false
        "boolean getter"      | "call site" | "isTestFlag()"                                | { it.testFlag }                      | false
        "non-existent getter" | "call site" | "getNonExistentProperty()-non-existent"       | { it.nonExistentProperty }           | false