Coverity Fixes - High

Fix 2 theoretical resource leaks identified by Coverity Scan.

DbSQL.java and SSLContextManager.java one occurrence each.

src/ch/csnc/extension/httpclient/SSLContextManager.java

@@ -415,13 +415,12 @@ public int loadPKCS12Certificate(String filename, String ksPassword)
 		String name = file.getName();
 
 		// Open the file
-		InputStream is = new FileInputStream(file);
-
-		// create the keystore
-		KeyStore ks = KeyStore.getInstance("PKCS12");
-		ks.load(is, ksPassword == null ? null : ksPassword.toCharArray());
-
-		return addKeyStore(ks, "PKCS#12: " + name, ksPassword);
+		try (InputStream is = new FileInputStream(file)) {
+			// create the keystore
+			KeyStore ks = KeyStore.getInstance("PKCS12");
+			ks.load(is, ksPassword == null ? null : ksPassword.toCharArray());
+			return addKeyStore(ks, "PKCS#12: " + name, ksPassword);
+		}
 	}
 
 	public boolean unlockKeyWithDefaultPassword(int keystoreIndex, int aliasIndex)

src/org/zaproxy/zap/db/sql/DbSQL.java

@@ -106,17 +106,16 @@ public synchronized Database initDatabase() throws IllegalStateException, IOExce
 			throw new FileNotFoundException(file.getAbsolutePath());
 		}
 
-		Reader reader = new FileReader(file );
 		dbProperties = new Properties();
-		dbProperties.load(reader);
-
+		try (Reader reader = new FileReader(file )) {
+			dbProperties.load(reader);
+		}
 		dbType = dbProperties.getProperty("db.type");
 
 		// Load the SQL properties
 		sqlProperties = new Properties();
 		File sqlFile = new File (Constant.getZapInstall() + File.separator + "db", dbType + ".properties");
-		try {
-			Reader sqlReader = new FileReader(sqlFile);
+		try (Reader sqlReader = new FileReader(sqlFile)){
 			sqlProperties.load(sqlReader);
 		} catch (Exception e) {
 			logger.error("No SQL properties file for db type " + sqlFile.getAbsolutePath());