Fixing squid:S2147 - Catches should be combined.

Author: Faisal Hameed

activeweb/src/main/java/org/javalite/activeweb/DynamicClassFactory.java

@@ -23,9 +23,7 @@ public static <T> T createInstance(String className, Class<T> expectedType) thro
             Object o = getCompiledClass(className).newInstance();
             T instance = expectedType.cast(o);
             return instance ;
-        } catch (CompilationException e) {
-            throw e;
-        } catch (ClassLoadException e) {
+        } catch (CompilationException | ClassLoadException e) {
             throw e;
         } catch (ClassCastException e) {
             throw new ClassLoadException("Class: " + className + " is not the expected type, are you sure it extends " + expectedType.getName() + "?");

activeweb/src/main/java/org/javalite/activeweb/RenderTemplateResponse.java

@@ -87,10 +87,7 @@ void doProcess() {
         try {
             templateManager.merge(values, template, layout, format, Context.getHttpResponse().getWriter());
         }
-        catch (IllegalStateException e){
-            throw e;
-        }
-        catch (ViewException e) {
+        catch (IllegalStateException | ViewException e){
             throw e;
         }
         catch (Exception e) {

activeweb/src/main/java/org/javalite/activeweb/RequestDispatcher.java

@@ -219,13 +219,9 @@ public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain
             }
         } catch (CompilationException e) {
             renderSystemError(e);
-        } catch (ClassLoadException e) {
+        } catch (ClassLoadException | ActionNotFoundException e) {
             renderSystemError("/system/404", useDefaultLayoutForErrors() ? getDefaultLayout():null, 404, e);
-        }catch (ActionNotFoundException e) {
-            renderSystemError("/system/404", useDefaultLayoutForErrors() ? getDefaultLayout():null, 404, e);
-        }catch(ViewMissingException e){
-            renderSystemError("/system/404", useDefaultLayoutForErrors() ? getDefaultLayout():null, 404, e);
-        }catch(RouteException e){
+        }catch(ViewMissingException | RouteException e){
             renderSystemError("/system/404", useDefaultLayoutForErrors() ? getDefaultLayout():null, 404, e);
         }catch(ViewException e){
             renderSystemError("/system/error", useDefaultLayoutForErrors() ? getDefaultLayout():null, 500, e);