DEBUG: add logging output to pam

src/main/java/caosdb/server/accessControl/Pam.java

@@ -31,11 +31,15 @@ import java.util.Set;
 import org.apache.shiro.authz.AuthorizationException;
 import org.jvnet.libpam.PAMException;
 import org.jvnet.libpam.UnixUser;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 public class Pam implements UserSource {
 	
   public static class DefaultPamScriptCaller implements PamScriptCaller {
 	  
+	  private Logger logger = LoggerFactory.getLogger(getClass());
+
     private final String pam_script;
 
     public DefaultPamScriptCaller(String pam_script) {
@@ -46,6 +50,7 @@ public class Pam implements UserSource {
     }
 
     public Process getProcess(final String username, final String password) throws IOException {
+    	
       final File script = new File(this.pam_script);
 
       final ProcessBuilder pb = new ProcessBuilder(script.getAbsolutePath(), username, password);
@@ -59,6 +64,7 @@ public class Pam implements UserSource {
 
       try {
         pam_authentication = getProcess(username, password);
+        logger.info("call pam script");
         return pam_authentication.waitFor() == 0;
       } catch (final IOException e) {
         throw new RuntimeException(e);