Feat: add static analytic of code

src/main/java/com/sheepit/client/os/Linux.java

@@ -33,10 +33,6 @@ public class Linux extends OS {
 	private final String NICE_BINARY_PATH = "nice";
 	private final String ID_COMMAND_INVOCATION = "id -u";
 	
-	public Linux() {
-		super();
-	}
-	
 	@Override public String name() {
 		return "linux";
 	}
@@ -55,7 +51,7 @@ public class Linux extends OS {
 	
 	@Override public Process exec(List<String> command, Map<String, String> env_overight) throws IOException {
 		Map<String, String> new_env = new HashMap<String, String>();
-		new_env.putAll(java.lang.System.getenv()); // clone the env
+		new_env.putAll(System.getenv()); // clone the env
 		
 		// if Blender is already loading an OpenGL library, don't need to load Blender's default one (it will
 		// create system incompatibilities). If no OpenGL library is found, then load the one included in the binary
@@ -200,7 +196,7 @@ public class Linux extends OS {
 		try {
 			// Shutdown the computer waiting delayInMinutes minutes to allow all SheepIt threads to close and exit the app
 			ProcessBuilder builder = new ProcessBuilder("shutdown", "-h", String.valueOf(delayInMinutes));
-			Process process = builder.inheritIO().start();
+			builder.inheritIO().start();
 		}
 		catch (IOException e) {
 			System.err.println(String.format("Linux::shutdownComputer Unable to execute the 'shutdown -h 1' command. Exception %s", e.getMessage()));

src/main/java/com/sheepit/client/os/Mac.java

@@ -32,10 +32,6 @@ public class Mac extends OS {
 	private final String NICE_BINARY_PATH = "nice";
 	private final String ID_COMMAND_INVOCATION = "id -u";
 	
-	public Mac() {
-		super();
-	}
-	
 	@Override public String name() {
 		return "mac";
 	}
@@ -128,7 +124,7 @@ public class Mac extends OS {
 		try {
 			// Shutdown the computer waiting delayInMinutes minutes to allow all SheepIt threads to close and exit the app
 			ProcessBuilder builder = new ProcessBuilder("shutdown", "-h", String.valueOf(delayInMinutes));
-			Process process = builder.inheritIO().start();
+			builder.inheritIO().start();
 		}
 		catch (IOException e) {
 			System.err.println(String.format("Mac::shutdownComputer Unable to execute the 'shutdown -h 1' command. Exception %s", e.getMessage()));

src/main/java/com/sheepit/client/os/OS.java

@@ -153,7 +153,7 @@ public abstract class OS {
 				if (proc.isAlive() == false) {
 					return true;
 				}
-				java.lang.Thread.sleep(100);
+				Thread.sleep(100);
 			}
 			
 			proc.destroyForcibly();

src/main/java/com/sheepit/client/os/Windows.java

@@ -53,10 +53,10 @@ public class Windows extends OS {
 			kernel32lib = (Kernel32Lib) Native.load(Kernel32Lib.path, Kernel32Lib.class);
 			kernel32lib.SetErrorMode(Kernel32Lib.SEM_NOGPFAULTERRORBOX);
 		}
-		catch (java.lang.UnsatisfiedLinkError e) {
+		catch (UnsatisfiedLinkError e) {
 			System.out.println("OS.Windows::exec failed to load kernel32lib " + e);
 		}
-		catch (java.lang.ExceptionInInitializerError e) {
+		catch (ExceptionInInitializerError e) {
 			System.out.println("OS.Windows::exec failed to load kernel32lib " + e);
 		}
 		catch (Exception e) {
@@ -192,7 +192,7 @@ public class Windows extends OS {
 		try {
 			// Shutdown the computer, waiting delayInMinutes minutes, force app closure and on the shutdown screen indicate that was initiated by SheepIt app
 			ProcessBuilder builder = new ProcessBuilder("shutdown", "/s", "/f", "/t", String.valueOf(delayInMinutes * 60), "/c", "\"SheepIt App has initiated this computer shutdown.\"");
-			Process process = builder.inheritIO().start();
+			builder.inheritIO().start();
 		}
 		catch (IOException e) {
 			System.err.println(

src/main/java/com/sheepit/client/os/windows/WinProcess.java

@@ -51,10 +51,10 @@ public class WinProcess {
 		try {
 			this.kernel32lib = (Kernel32Lib) Native.load(Kernel32Lib.path, Kernel32Lib.class);
 		}
-		catch (java.lang.UnsatisfiedLinkError e) {
+		catch (UnsatisfiedLinkError e) {
 			System.out.println("WinProcess::construct " + e);
 		}
-		catch (java.lang.ExceptionInInitializerError e) {
+		catch (ExceptionInInitializerError e) {
 			System.out.println("WinProcess::construct " + e);
 		}
 		catch (Exception e) {