Merge pull request #1785 from grandinj/1774_h2_browser_message

issue #1774 improve h2 browser message

h2/src/docsrc/html/tutorial.html

@@ -127,6 +127,12 @@ Depending on your platform and environment, there are multiple ways to start the
     </td>
 </tr>
 </table>
+<p>
+If the console startup procedure is unable to locate the default system web browser,
+an error message may be displayed. It is possible to explicitly tell H2 which
+program/script to use when opening a system web browser by setting either the BROWSER
+environment variable, or the h2.browser java property.
+</p>
 
 <h3>Firewall</h3>
 <p>

h2/src/main/org/h2/tools/Server.java

@@ -718,8 +718,8 @@ public class Server extends Tool implements Runnable, ShutdownHandler {
                 if (!ok) {
                     // No success in detection.
                     throw new Exception(
-                            "Browser detection failed and system property " +
-                            SysProperties.H2_BROWSER + " not set");
+                            "Browser detection failed, and java property 'h2.browser' " +
+                             "and environment variable BROWSER are not set to a browser executable.");
                 }
             }
         } catch (Exception e) {