feat(java): add ByteArray[In|out]putStream classes to io (#320)

Author: cesarcoatl

src/java/io/__init__.py

@@ -11,6 +11,8 @@
 __all__ = [
     "BufferedReader",
     "BufferedWriter",
+    "ByteArrayInputStream",
+    "ByteArrayOutputStream",
     "Closeable",
     "DataOutputStream",
     "File",
@@ -96,6 +98,29 @@ def write(self, *args):
         pass
 
 
+class ByteArrayOutputStream(OutputStream):
+    def __init__(self, size=0):
+        # type: (int) -> None
+        super(ByteArrayOutputStream, self).__init__()
+        print(size)
+
+    def reset(self):
+        # type: () -> None
+        pass
+
+    def size(self):
+        # type: () -> int
+        pass
+
+    def toByteArray(self):
+        # type: () -> bytearray
+        pass
+
+    def writeTo(self, arg):
+        # type: (Union[bytearray, OutputStream]) -> None
+        pass
+
+
 class FileOutputStream(OutputStream):
     def __init__(self, *args):
         # type: (*Any) -> None
@@ -257,6 +282,13 @@ def transferTo(self, out):
         pass
 
 
+class ByteArrayInputStream(InputStream):
+    def __init__(self, buf, offset=0, length=-1):
+        # type: (bytearray, int, int) -> None
+        super(ByteArrayInputStream, self).__init__()
+        print(buf, offset, length)
+
+
 class IOException(Exception):
     def __init__(self, message=None, cause=None):
         # type: (Optional[str], Optional[Throwable]) -> None