template engine has to use UberClassLoader

scm-webapp/src/main/java/sonia/scm/template/MustacheTemplateEngine.java

@@ -46,6 +46,8 @@ import com.google.inject.Inject;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import sonia.scm.plugin.PluginLoader;
+
 //~--- JDK imports ------------------------------------------------------------
 
 import java.io.IOException;
@@ -84,11 +86,13 @@ public class MustacheTemplateEngine implements TemplateEngine
    *
    *
    * @param context
+   * @param pluginLoader
    */
   @Inject
-  public MustacheTemplateEngine(ServletContext context)
+  public MustacheTemplateEngine(ServletContext context,
+    PluginLoader pluginLoader)
   {
-    factory = new ServletMustacheFactory(context);
+    factory = new ServletMustacheFactory(context, pluginLoader);
 
     ThreadFactory threadFactory =
       new ThreadFactoryBuilder().setNameFormat(THREAD_NAME).build();
@@ -168,11 +172,7 @@ public class MustacheTemplateEngine implements TemplateEngine
     {
       logger.warn("could not find mustache template at {}", templatePath);
     }
-    catch (UncheckedExecutionException ex)
-    {
-      handleWrappedException(ex, templatePath);
-    }
-    catch (MustacheException ex)
+    catch (UncheckedExecutionException | MustacheException ex)
     {
       handleWrappedException(ex, templatePath);
     }
@@ -231,5 +231,5 @@ public class MustacheTemplateEngine implements TemplateEngine
   //~--- fields ---------------------------------------------------------------
 
   /** Field description */
-  private ServletMustacheFactory factory;
+  private final ServletMustacheFactory factory;
 }

scm-webapp/src/main/java/sonia/scm/template/ServletMustacheFactory.java

@@ -42,6 +42,8 @@ import com.google.common.base.Charsets;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import sonia.scm.plugin.PluginLoader;
+
 //~--- JDK imports ------------------------------------------------------------
 
 import java.io.BufferedReader;
@@ -71,10 +73,13 @@ public class ServletMustacheFactory extends DefaultMustacheFactory
    *
    *
    * @param servletContext
+   * @param pluginLoader
    */
-  public ServletMustacheFactory(ServletContext servletContext)
+  public ServletMustacheFactory(ServletContext servletContext,
+    PluginLoader pluginLoader)
   {
     this.servletContext = servletContext;
+    this.pluginLoader = pluginLoader;
   }
 
   //~--- get methods ----------------------------------------------------------
@@ -111,14 +116,7 @@ public class ServletMustacheFactory extends DefaultMustacheFactory
         resourceName = resourceName.substring(1);
       }
 
-      ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
-
-      if (classLoader == null)
-      {
-        classLoader = ServletMustacheFactory.class.getClassLoader();
-      }
-
-      is = classLoader.getResourceAsStream(resourceName);
+      is = pluginLoader.getUberClassLoader().getResourceAsStream(resourceName);
     }
 
     if (is != null)
@@ -146,6 +144,9 @@ public class ServletMustacheFactory extends DefaultMustacheFactory
 
   //~--- fields ---------------------------------------------------------------
 
+  /** Field description */
+  private final PluginLoader pluginLoader;
+
   /** Field description */
   private ServletContext servletContext;
 }

scm-webapp/src/test/java/sonia/scm/template/MustacheTemplateEngineTest.java

@@ -33,6 +33,12 @@
 
 package sonia.scm.template;
 
+//~--- non-JDK imports --------------------------------------------------------
+
+import sonia.scm.plugin.PluginLoader;
+
+import static org.mockito.Mockito.*;
+
 //~--- JDK imports ------------------------------------------------------------
 
 import java.io.InputStream;
@@ -57,7 +63,12 @@ public class MustacheTemplateEngineTest extends TemplateEngineTestBase
   @Override
   public TemplateEngine createEngine(ServletContext context)
   {
-    return new MustacheTemplateEngine(context);
+    PluginLoader loader = mock(PluginLoader.class);
+
+    when(loader.getUberClassLoader()).thenReturn(
+      Thread.currentThread().getContextClassLoader());
+
+    return new MustacheTemplateEngine(context, loader);
   }
 
   //~--- get methods ----------------------------------------------------------