Fixed AndroidPort: SerialPort.class.getDeclaredConstructor() requires…

pom.xml

@@ -66,7 +66,7 @@
           <execution>
             <id>default-compile</id>
             <configuration>
-              <release>6</release>
+              <release>8</release>
               <debug>false</debug>
               <excludes>
                 <exclude>module-info.java</exclude>

src/main/java/com/fazecast/jSerialComm/SerialPort.java

@@ -123,7 +123,14 @@ public class SerialPort
 			cleanUpDirectory(new File(userHomeDirectory, ".."));
 
 			// Determine Operating System and architecture
-			if (System.getProperty("java.vm.vendor", "").toLowerCase().contains("android"))
+			// Check multiple Java system properties for Android detection to handle OEM builds where
+			// java.vm.vendor does not contain "android" (e.g. some MediaTek/Qualcomm Android POS devices).
+			// java.vm.name is "Dalvik" on all standard Android runtimes regardless of OEM customization.
+			final boolean isAndroidRuntime =
+					System.getProperty("java.vm.vendor", "").toLowerCase().contains("android") ||
+					System.getProperty("java.vm.name", "").toLowerCase().contains("dalvik") ||
+					System.getProperty("java.vendor", "").toLowerCase().contains("android");
+			if (isAndroidRuntime)
 			{
 				isAndroidDelete = true;
 				libraryPath = "Android";
@@ -185,8 +192,15 @@ else if (arch.contains("86") || arch.contains("amd"))
 				System.exit(-1);
 			}
 
-			// Load platform-specific binaries for non-Android systems
-			if (!isAndroid)
+			// Load platform-specific binaries for non-Android systems.
+			// When running inside an Android app that manages USB Host access itself, the host
+			// sets jSerialComm.android.override=true before this class is loaded so that native
+			// library loading (which would fail on Android due to path and version constraints)
+			// is skipped entirely.  The host app then calls setAndroidContext() and sets
+			// isAndroid=true via reflection to activate the USB Host API path.
+			final boolean androidOverride = isAndroidRuntime &&
+					System.getProperty("jSerialComm.android.override", "false").equalsIgnoreCase("true");
+			if (!isAndroid && !androidOverride)
 			{
 				// Attempt to load from a manually-specified user location
 				boolean libraryLoaded = false;
@@ -608,7 +622,8 @@ public final boolean openPort(int safetySleepTime, int deviceSendQueueSize, int
 				try { Thread.sleep(safetySleepTimeMS); } catch (Exception e) { Thread.currentThread().interrupt(); }
 
 			// If this is an Android root application, we must explicitly allow serial port access to the library
-			File portFile = isAndroidDelete ? new File(comPort) : null;
+			// Skip su/chmod when androidPort is already set (USB serial path handles open itself)
+			File portFile = (isAndroidDelete && androidPort == null) ? new File(comPort) : null;
 			if (portFile != null && (!portFile.canRead() || !portFile.canWrite()))
 			{
 				Process process = null;
@@ -1130,6 +1145,10 @@ public final boolean setDTRandRTS(boolean dtr, boolean rts)
 
 	// SerialPort Constructors
 	private SerialPort() {}
+	private SerialPort(String port, String friendly, String description, String location, String serial, String manufacture, int vid, int pid)
+	{
+		this(port, friendly, description, location, serial, manufacture, "", vid, pid);
+	}
 	private SerialPort(String port, String friendly, String description, String location, String serial, String manufacture, String driver, int vid, int pid)
 	{
 		comPort = port;

src/main/java/com/fazecast/jSerialComm/android/AndroidPort.java

@@ -147,15 +147,17 @@ public static SerialPort[] getCommPortsNative()
                     AndroidPort androidPort = null;
 
                     Constructor<SerialPort> serialPortConstructor =
-                            SerialPort.class.getDeclaredConstructor(String.class, String.class, String.class, String.class, String.class, int.class, int.class);
+                            SerialPort.class.getDeclaredConstructor(String.class, String.class, String.class, String.class, String.class, String.class, String.class, int.class, int.class);
                     serialPortConstructor.setAccessible(true);
 
                     SerialPort serialPort = serialPortConstructor.newInstance(
                             "COM" + (ports.size() + 1),
-                            device.getDeviceName(),
                             device.getProductName(),
+                            device.getProductName(),
+                            device.getDeviceName(),
                             device.getSerialNumber(),
-                            device.getSerialNumber(),
+                            device.getManufacturerName(),
+                            "",
                             device.getVendorId(),
                             device.getProductId()
                     );