code: public void validate() throws Exception {
          boolean validated = true;
          for (ValueExpression expression : this.getApplicableExpressions()) {
              try {
                  expression.validate();
                  validated = true;
              } catch (Throwable e) {
                  validated = false;
              }
              if (validated) {
                  break;
              }
          }
          Assert.assertTrue("At least one expression type should match the input", validated);
      }
docs: /* (non-Javadoc)
  @see com.github.mkolisnyk.aerial.AerialDataGenerator#validate()