Add type parameters in remaining internal usage.

Author: greenrobot-team

objectbox-java/src/main/java/io/objectbox/Cursor.java

@@ -50,7 +50,7 @@ public abstract class Cursor<T> implements Closeable {
 
     static native boolean nativeSeek(long cursor, long key);
 
-    native Object nativeGetAllEntities(long cursor);
+    native List<T> nativeGetAllEntities(long cursor);
 
     static native Object nativeGetEntity(long cursor, long key);
 
@@ -199,7 +199,7 @@ public T first() {
 
     /** ~10% slower than iterating with {@link #first()} and {@link #next()} as done by {@link Box#getAll()}. */
     public List<T> getAll() {
-        return (List) nativeGetAllEntities(cursor);
+        return nativeGetAllEntities(cursor);
     }
 
     public boolean deleteEntity(long key) {

objectbox-java/src/main/java/io/objectbox/Transaction.java

@@ -56,7 +56,7 @@ public class Transaction implements Closeable {
 
     native long nativeCreateKeyValueCursor(long transaction);
 
-    native long nativeCreateCursor(long transaction, String entityName, Class entityClass);
+    native long nativeCreateCursor(long transaction, String entityName, Class<?> entityClass);
 
     // native long nativeGetStore(long transaction);
 

objectbox-java/src/main/java/io/objectbox/internal/ReflectionCache.java

@@ -32,10 +32,10 @@ public static ReflectionCache getInstance() {
         return instance;
     }
 
-    private final Map<Class, Map<String, Field>> fields = new HashMap<>();
+    private final Map<Class<?>, Map<String, Field>> fields = new HashMap<>();
 
     @Nonnull
-    public synchronized Field getField(Class clazz, String name) {
+    public synchronized Field getField(Class<?> clazz, String name) {
         Map<String, Field> fieldsForClass = fields.get(clazz);
         if (fieldsForClass == null) {
             fieldsForClass = new HashMap<>();