EDIT

    public SpecimenAdminPreferences() {

    }

    boolean isShowSpecimenRelatedIssues;

    boolean isShowCollectingAreaInGeneralSection;

    boolean isDeterminationOnlyForFieldUnits;

        getValues();

        final Button showSpecimenButton = new Button(parent, SWT.CHECK);

        showSpecimenButton.setText(Messages.DatabasePreferncesPage_Show_Specimen);

        if(!CdmStore.isActive()){

            return;

        }

    }

    private void getValues(){

                this.isShowSpecimenRelatedIssues = true;

            }

            key = CdmPreference.NewKey(PreferenceSubject.NewTaxEditorInstance(), PreferencePredicate.ShowCollectingAreasInGeneralSection);

            CdmPreference isShowCollectingAreaInGeneralSectionPref = service.find(key);

            if (isShowCollectingAreaInGeneralSectionPref != null){

            CdmPreference isShowTaxonAssociationPref = service.find(key);

            if (isShowTaxonAssociationPref != null){

                this.isShowTaxonAssociation = Boolean.valueOf(isShowTaxonAssociationPref.getValue());

            }

            key = CdmPreference.NewKey(PreferenceSubject.NewTaxEditorInstance(), PreferencePredicate.ShowLifeForm);

                this.isShowLifeForm = Boolean.valueOf(isShowLifeFormPref.getValue());

            }

        }

    }