Ensure file input stream are closed in both normal and error cases.

htroot/DictionaryLoader_p.java

@@ -303,10 +303,20 @@ public class DictionaryLoader_p {
         }
 
         if (post.containsKey("syn0Activate")) {
+        	FileInputStream inStream = null;
             try {
-                FileUtils.copy(new FileInputStream(synonym_de_default), synonym_de_production);
+            	inStream = new FileInputStream(synonym_de_default);
+                FileUtils.copy(inStream, synonym_de_production);
             } catch (IOException e) {
                 ConcurrentLog.logException(e);
+            } finally {
+            	if(inStream != null) {
+            		try {
+						inStream.close();
+					} catch (IOException ignored) {
+						ConcurrentLog.warn("DictionaryLoader", "Could not close file " + synonym_de_default.getName());
+					}
+            	}
             }
             SynonymLibrary.init(synonyms_path);
         }

source/net/yacy/http/servlets/YaCyDefaultServlet.java

@@ -1105,11 +1105,25 @@ public class YaCyDefaultServlet extends HttpServlet  {
                 response.setContentType(mimeType);
                 response.setStatus(HttpServletResponse.SC_OK);
                 ByteArrayOutputStream bas = new ByteArrayOutputStream(4096);
-                // apply templates
-                TemplateEngine.writeTemplate(targetFile.getName(), fis, bas, templatePatterns);                
-                fis.close();
-                // handle SSI
-                parseSSI (bas.toByteArray(),request,response);
+                try {
+                	// apply templates
+                	TemplateEngine.writeTemplate(targetFile.getName(), fis, bas, templatePatterns);
+                	
+                    // handle SSI
+                    parseSSI (bas.toByteArray(),request,response);
+                } finally {
+                	try {
+                		fis.close();
+                	} catch(IOException ignored) {
+                		ConcurrentLog.warn("FILEHANDLER", "YaCyDefaultServlet: could not close target file " + targetFile.getName());
+                	}
+                	
+                	try {
+                		bas.close();
+                	} catch(IOException ignored) {
+                		/* Should never happen with a ByteArrayOutputStream */
+                	}
+                }
             }
         }
     }