bugfix/Close streams at the function gitCommit and use lazy val inste…

…ad of def

src/main/scala/code/snippet/ApiExplorer.scala

@@ -1908,13 +1908,18 @@ WIP to add comments on resource docs. This code copied from Sofit.
   /*
     Return the git commit. If we can't for some reason (not a git root etc) then log and return ""
    */
-  def gitCommit : String = {
+  lazy val gitCommit : String = {
     val commit = try {
       val properties = new java.util.Properties()
       logger.debug("Before getResourceAsStream git.properties")
-      properties.load(getClass().getClassLoader().getResourceAsStream("git.properties"))
-      logger.debug("Before get Property git.commit.id")
-      properties.getProperty("git.commit.id", "")
+      val stream = getClass().getClassLoader().getResourceAsStream("git.properties")
+      try {
+        properties.load(stream)
+        logger.debug("Before get Property git.commit.id")
+        properties.getProperty("git.commit.id", "")
+      } finally {
+        stream.close()
+      }
     } catch {
       case e : Throwable => {
         logger.warn("gitCommit says: Could not return git commit. Does resources/git.properties exist?")