diff --git a/.classpath b/.classpath
index a48ae7b..6e022d9 100644
--- a/.classpath
+++ b/.classpath
@@ -5,7 +5,7 @@
 			<attribute name="org.eclipse.jdt.launching.CLASSPATH_ATTR_LIBRARY_PATH_ENTRY" value="org.hwo/src/native"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.7"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
 	<classpathentry kind="lib" path="contrib/javassist-3.15.0-GA.jar"/>
 	<classpathentry kind="lib" path="contrib/hibernate-jpa-2.0-api-1.0.1.Final.jar"/>
 	<classpathentry kind="lib" path="contrib/cglib-nodep-3.1.jar"/>
diff --git a/.settings/org.eclipse.jdt.core.prefs b/.settings/org.eclipse.jdt.core.prefs
index 7341ab1..3a21537 100644
--- a/.settings/org.eclipse.jdt.core.prefs
+++ b/.settings/org.eclipse.jdt.core.prefs
@@ -1,11 +1,11 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.7
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
 org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=1.7
+org.eclipse.jdt.core.compiler.compliance=1.8
 org.eclipse.jdt.core.compiler.debug.lineNumber=generate
 org.eclipse.jdt.core.compiler.debug.localVariable=generate
 org.eclipse.jdt.core.compiler.debug.sourceFile=generate
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.source=1.7
+org.eclipse.jdt.core.compiler.source=1.8
diff --git a/src/native/linux32/libnsp.so b/src/native/linux32/libnsp.so
index 46ccbd6..a232f50 100755
Binary files a/src/native/linux32/libnsp.so and b/src/native/linux32/libnsp.so differ
diff --git a/src/native/linux64/libnsp.so b/src/native/linux64/libnsp.so
index e5c0634..df1fc16 100755
Binary files a/src/native/linux64/libnsp.so and b/src/native/linux64/libnsp.so differ
diff --git a/src/native/mswin32/nsp.dll b/src/native/mswin32/nsp.dll
index 75e10f2..02a3603 100755
Binary files a/src/native/mswin32/nsp.dll and b/src/native/mswin32/nsp.dll differ
diff --git a/src/native/mswin64/nsp.dll b/src/native/mswin64/nsp.dll
index 23f2f23..e9f8f53 100644
Binary files a/src/native/mswin64/nsp.dll and b/src/native/mswin64/nsp.dll differ
diff --git a/src/native/osx32/libnsp.dylib b/src/native/osx32/libnsp.dylib
index 32cfce6..fd2eb24 100755
Binary files a/src/native/osx32/libnsp.dylib and b/src/native/osx32/libnsp.dylib differ
diff --git a/src/native/osx64/libnsp.dylib b/src/native/osx64/libnsp.dylib
index 32cfce6..fd2eb24 100755
Binary files a/src/native/osx64/libnsp.dylib and b/src/native/osx64/libnsp.dylib differ
diff --git a/src/org/hwo/io/NewSerialPort/NewSerialPort.java b/src/org/hwo/io/NewSerialPort/NewSerialPort.java
index dcbcb78..74af703 100644
--- a/src/org/hwo/io/NewSerialPort/NewSerialPort.java
+++ b/src/org/hwo/io/NewSerialPort/NewSerialPort.java
@@ -30,6 +30,7 @@ public class NewSerialPort {
 	
 	public static long nsp_RET_OTHER = -99;		// Unbekannter Fehler
 	
+	public static long EAGAIN;
 	
 	String		portName;
 	int			baudRate;
@@ -164,6 +165,7 @@ public class NewSerialPort {
 	}
 	public void setTimeOut(int timeout){
 		this.timeout = timeout;
+		log(DEBUG,"NSP: setTimeOut( %d )",timeout);
 		nsp_setup_timeout(nsp, timeout);
 	}
 	
@@ -264,20 +266,22 @@ public class NewSerialPort {
 	private static native int nsp_read_bytes(long nsp,byte[] bytes,int offset,int len);
 	private static native int nsp_write_bytes(long nsp,byte[] bytes,int offset,int len);
 	
-	
+	private static native int nsp_EAGAIN();
 	
 	static {
 		NativeLoader.loadLibrary("nsp");
-	}
-	
-	
+		
+		EAGAIN = nsp_EAGAIN();
+	}	
 	public class NewSerialPortInputStream extends InputStream
 	{
 		@Override
 		public int read() throws IOException {
 			if (autoOpen && !isOpen())
 				open();			
-			
+
+			log(DEBUGDETAIL,"NSP::read()");
+
 			int ch = nsp_read(nsp);
 			if (ch < 0){
 				if (ch == nsp_RET_TIMEOUT)
@@ -299,9 +303,11 @@ public class NewSerialPort {
 		
 		@Override
 		public int read(byte[] b, int off, int len) throws IOException {
+			//log(DEBUGDETAIL,"NSP::read()");
+
 			int nRead = nsp_read_bytes(nsp, b, off, len);
 			if (nRead < 0){
-				if (nRead == -11){	// -EAGAIN (timeout, keine zeichen verfügbar)
+				if (nRead == EAGAIN){	// -EAGAIN (timeout, keine zeichen verfügbar)
 					return 0;
 				};
 				throw new IOException(String.format("nsp_read_bytes() returned %d", nRead));
@@ -359,10 +365,13 @@ public class NewSerialPort {
 		public void write(byte[] b, int off, int len) throws IOException {
 			int nWritten = 0;
 			
-			for (int redo=0;redo<5;redo++){
+			log(DEBUGDETAIL,"NSP::write(...)");
+			
+			for (int redo=0; redo < 5 ; redo++){
 				nWritten = nsp_write_bytes(nsp, b, off, len);
-				if (nWritten == -11){
+				if (nWritten == EAGAIN){
 					try {
+						log(DEBUGDETAIL,"SL-TX-EAGAIN... [%d]",redo);
 						Thread.sleep(5);
 					} catch (Exception e){
 						
@@ -405,10 +414,10 @@ public class NewSerialPort {
 		
 		for (int i = 1; i < 32; i++)
 		{
-			sp.setPortName(String.format("COM%d:",i));
+			sp.setPortName(String.format("COM%d",i));
 			if (sp.open())
 			{
-				portNames.add(String.format("COM%d:",i));
+				portNames.add(String.format("COM%d",i));
 				sp.close();
 			}
 		}