diff --git a/appassembler-maven-plugin/src/it/programNameDuplicateTest/verify.groovy b/appassembler-maven-plugin/src/it/programNameDuplicateTest/verify.groovy
index 37e888ee..b10fdb27 100644
--- a/appassembler-maven-plugin/src/it/programNameDuplicateTest/verify.groovy
+++ b/appassembler-maven-plugin/src/it/programNameDuplicateTest/verify.groovy
@@ -53,11 +53,13 @@ println "ProjectVersion:" + projectVersion
 
 def buildLogFile = new File( basedir, "build.log");
 
-if (mavenVersion.equals("3.0.4") || mavenVersion.equals("3.0.5") || mavenVersion.equals( "3.1.0" ) || mavenVersion.equals( "3.1.1" ) || mavenVersion.equals( "3.2.1" ) || mavenVersion.equals( "3.2.2" )) {
+//All Maven 3.X versions
+if (mavenVersion.startsWith("3.")) {
 	t.checkExistenceAndContentOfAFile(buildLogFile, [
     '[ERROR] Failed to execute goal org.codehaus.mojo:appassembler-maven-plugin:' + projectVersion + ':assemble (default) on project programNameDuplicate-test: The program id: program-01-test exists more than once! -> [Help 1]',
 	]);
 } else {
+  //Maven 2.X output looks different...
 	t.checkExistenceAndContentOfAFile(buildLogFile, [
 		'org.apache.maven.BuildFailureException: The program id: program-01-test exists more than once!',
 	]);
diff --git a/appassembler-maven-plugin/src/main/java/org/codehaus/mojo/appassembler/daemon/script/DefaultScriptGenerator.java b/appassembler-maven-plugin/src/main/java/org/codehaus/mojo/appassembler/daemon/script/DefaultScriptGenerator.java
index fb618bd1..7f4a6e12 100644
--- a/appassembler-maven-plugin/src/main/java/org/codehaus/mojo/appassembler/daemon/script/DefaultScriptGenerator.java
+++ b/appassembler-maven-plugin/src/main/java/org/codehaus/mojo/appassembler/daemon/script/DefaultScriptGenerator.java
@@ -165,7 +165,6 @@ public void createBinScript( String platformName, Daemon daemon, File outputDire
         FileWriter out = null;
         File binFile;
 
-
         try
         {
             in = getScriptTemplate( platformName, daemon );
@@ -239,21 +238,24 @@ public void createBinScript( String platformName, Daemon daemon, File outputDire
             binFile = new File( binDir, programName + platform.getBinFileExtension() );
             if ( Platform.UNIX_NAME.equals( platformName ) )
             {
-                try
-                {
-                    // in case it already exists, make it writable. Maybe deleting would be better?
-                    ArchiveEntryUtils.chmod( binFile, 0777, getLogger(), true );
-                }
-                catch ( ArchiverException ae )
+                // Only in case of an existing file it does make sense
+                if ( binFile.exists() )
                 {
-                    // give up
+                    try
+                    {
+                        // in case it already exists, make it writable. Maybe deleting would be better?
+                        ArchiveEntryUtils.chmod( binFile, 0777, getLogger(), true );
+                    }
+                    catch ( ArchiverException ae )
+                    {
+                        throw new DaemonGeneratorException( "Failed to change permission for bin file.", ae );
+                    }
                 }
             }
 
-
             out = new FileWriter( binFile );
-            getLogger().debug(
-                "Writing shell file for platform '" + platform.getName() + "' to '" + binFile.getAbsolutePath() + "'." );
+            getLogger().debug( "Writing shell file for platform '" + platform.getName() + "' to '"
+                                   + binFile.getAbsolutePath() + "'." );
 
             IOUtil.copy( interpolationFilterReader, out );
         }
@@ -275,11 +277,12 @@ public void createBinScript( String platformName, Daemon daemon, File outputDire
         {
             try
             {
-                ArchiveEntryUtils.chmod( binFile, 0555, getLogger(), true );
+                // TODO: The permissions should be made configurable.
+                ArchiveEntryUtils.chmod( binFile, 0755, getLogger(), true );
             }
             catch ( ArchiverException ae )
             {
-                // give up.
+                throw new DaemonGeneratorException( "Failed to change permission for bin file.", ae );
             }
         }
     }