Java: Added nested local class test case

java/ql/test/query-tests/CallsToSystemExit/LocalClassInTestMethod.java

@@ -0,0 +1,26 @@
+public class LocalClassInTestMethod {
+    public void testNestedCase() {
+        class OuterLocalClass {
+            void func() {
+                class NestedLocalClass {
+                    void nestedMethod() {
+                        System.exit(4); // $ SPURIOUS: Alert
+                        Runtime.getRuntime().halt(5); // $ SPURIOUS: Alert
+                    }
+                }
+            }
+        }
+        OuterLocalClass outer = new OuterLocalClass();
+        outer.func();
+    }
+    public void testNestedCase2() {
+        class OuterLocalClass {
+            class NestedLocalClass {
+                void nestedMethod() {
+                    System.exit(4); // $ SPURIOUS: Alert
+                    Runtime.getRuntime().halt(5); // $ SPURIOUS: Alert
+                }
+            }
+        }
+    }
+}