[Db-derby Wiki] Update of "DerbyJUnitTesting" by MyrnavanLunteren

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The following page has been changed by MyrnavanLunteren:
http://wiki.apache.org/db-derby/DerbyJUnitTesting

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  <!> No system properties are required when running directly with !TestRunners, the !BaseTestCase class
  automatically installs a security manager with the correct policy file.
  
+ However, the following ad hoc system properties may be beneficial in specific cases:
+   * `derbyTesting.oldReleasePath` : this property applies only to the upgradeTests suite, and then specifies the location where old release (derby.)jars can be found. More details can be found in the javadoc for the upgradeTests, but when running these tests regularly, or when running them behind a firewall, you should, respectively need to download the jars and specify the property. When the property is not specified, the (upgrade)tests will attempt to connect to the svn repository.
+   * `derby.tests.trace` : when this value is set to true, output is generated that reflects each test and the time it took to run; this is useful when running with taciturn testrunners, such as the `junit.textui.TestRunner` (which otherwise only prints a '.' for each fixture). The default value is off.
+   * `derby.tests.debug` : switches on verbose running. Any tests that have taken advantage of the method `org.apache.derbyTesting.junit.TestConfiguration.println()` will print additional statements when this is switched to true. Default value is off.
+ 
  See some notes on running test runners on [:JunitVmIssues: specific platforms] including WCTME 5.7.
  
  ==== batch run ====