clang-tidy fixes part-1

Details
- Use 'size_type' instead of 'int',
  propagate same 'size_type' into 'darray' etc.

- Use 'std::make_shared', 'std::make_unique'

- Use range-based for loops

- Remove redundant 'virtual', use 'override' in derived classes

- Use 'nullptr'

- Use default impl for dtor, ctor (incomplete)

- Use copy and std::move (incomplete)

- Explcitly catch std::bad_alloc in 'new' in 'noexcept' -> 'abort'
  - 'abort' was issued implicitly in noexcept methods

- L2CAPServer, L2CAPClient, NopGattServerHandler,
  DBGattServerHandler, FwdGattServerHandler
  - Use local close_impl(), usable in virtual destructor

- L2CAPClient::read, HCIComm::read
  - preset 'poll' result 'n', avoid garbage comparison

- BTAdapter::enableListening
  - loop through addMgmtEventCallback() result

- JNI code
  - explicit size_type is cast to jsize or jint w/o check
    - unchanged semantics

1 files changed, 1 insertions, 2 deletions

diff --git a/examples/java/DBTPeripheral00.java b/examples/java/DBTPeripheral00.java
index 9712e9c3..107bf7a5 100644
--- a/examples/java/DBTPeripheral00.java
+++ b/examples/java/DBTPeripheral00.java
@@ -37,7 +37,6 @@ import org.direct_bt.BTMode;
 import org.direct_bt.BTSecurityLevel;
 import org.direct_bt.BTAdapter;
 import org.direct_bt.BTDevice;
-import org.direct_bt.BTDeviceRegistry;
 import org.direct_bt.BTException;
 import org.direct_bt.BTFactory;
 import org.direct_bt.BTManager;
@@ -358,7 +357,7 @@ public class DBTPeripheral00 {
         }
     };
 
-    class MyGATTServerListener extends DBGattServer.Listener implements AutoCloseable {
+    class MyGATTServerListener extends DBGattServer.Listener {
         private final Thread pulseSenderThread;
         private volatile boolean stopPulseSenderFlag = false;