fix bug 修复 ClassLoader 读取不到自身 jar 文件内的配置文件

src/main/java/haidnor/jvm/classloader/ClassLoader.java

@@ -23,17 +23,10 @@ public class ClassLoader {
     public JarFile jarFile = null;
 
     static {
-        URL resource = ClassLoader.class.getResource("/");
-        String path = resource.getPath();
-        FileInputStream fis;
-        try {
-            fis = new FileInputStream(path + "/haidnorJVM.properties");
-        } catch (FileNotFoundException e) {
-            throw new RuntimeException(e);
-        }
+        InputStream is = ClassLoader.class.getResourceAsStream("/haidnorJVM.properties");
         Properties properties = new Properties();
         try {
-            properties.load(fis);
+            properties.load(is);
         } catch (IOException e) {
             throw new RuntimeException(e);
         }

src/test/java/haidnor/jvm/test/TestJVM.java

@@ -142,7 +142,7 @@ public class TestJVM {
         runMainClass(demo_finally_2.class);
     }
 
-    @Test
+    @Test(expected = ArithmeticException.class)
     public void demo_finally_3() throws Exception {
         runMainClass(demo_finally_3.class);
     }