protected void assertLoaded() {
  assertTrue(condition1,"condition 1 failed");
  assertTrue(condition2,"condition 2 failed");
}

protected boolean isLoadedBoolean() {
  try {
    assertLoaded();
    return true;
  }
  catch (Error e) {
    return false;
  }

protected void assertLoaded() {
  assertTrue(condition1,"condition 1 failed");
  assertTrue(condition2,"condition 2 failed");
}

protected boolean isLoadedBoolean() {
  return condition1 && condition2;
}

public class PageLoadCheckFailure {
   public String reason;
   ... other interesting data ...

   public PageLoadCheckFailure(reason, ... other interesting data ...) {
      this.reason = reason;
      etc.
   }

   public String getReason() {
      return reason;
   }

   ... getters for other interesting data ...
}

protected PageLoadCheckFailure checkWhetherLoaded() {
   if (!condition1) {
      return new PageLoadCheckFailure("condition 1 failed", ... other interesting data...);
   }
   if (!condition2) {
         return new PageLoadCheckFailure("condition 1 failed", ... other interesting data...);
   }
   return nil;
}

protected void assertLoaded() {
  PageLoadCheckFailure result = checkWhetherLoaded();
  if (result != nil) {
     Assert.fail(result.toString());
  }
}

protected boolean isLoadedBoolean() {
  return checkWhetherLoaded() == nil;
}