diff --git a/pom.xml b/pom.xml
index 635db96..5be248a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1,3 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>org.atriasoft</groupId>
@@ -5,12 +6,12 @@
   <version>0.1.0</version>
 	<properties>
 		<maven.compiler.version>3.13.0</maven.compiler.version>
-		<maven.compiler.source>21</maven.compiler.source>
-		<maven.compiler.target>21</maven.compiler.target>
+		<maven.compiler.source>24</maven.compiler.source>
+		<maven.compiler.target>24</maven.compiler.target>
 		<maven.dependency.version>3.1.1</maven.dependency.version>
 		<lwjgl.version>3.3.3</lwjgl.version>
 		<lwjgl3-awt.version>0.1.8</lwjgl3-awt.version>
-	<lwjgl.natives>natives-linux</lwjgl.natives>
+		<lwjgl.natives>natives-linux</lwjgl.natives>
 	</properties>
 
 	<repositories>
@@ -251,7 +252,7 @@
 		<dependency>
 		    <groupId>org.junit.jupiter</groupId>
 		    <artifactId>junit-jupiter-api</artifactId>
-		    <version>5.11.0-M2</version>
+		    <version>5.11.0</version>
 		    <scope>test</scope>
 		</dependency>
 		<dependency>
@@ -263,13 +264,13 @@
     </dependencies>
 
 	<build>
-		<sourceDirectory>src</sourceDirectory>
+		<sourceDirectory>src/main</sourceDirectory>
 		<resources>
 			<resource>
 				<directory>${basedir}/src/resources</directory>
 			</resource>
 		</resources>
-		<testSourceDirectory>test/src</testSourceDirectory>
+		<testSourceDirectory>src/test</testSourceDirectory>
 		<plugins>
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
@@ -285,7 +286,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-source-plugin</artifactId>
-				<version>3.3.1</version>
+				<version>4.0.0-beta-1</version>
 				<executions>
 					<execution>
 						<id>attach-sources</id>
@@ -299,7 +300,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-surefire-plugin</artifactId>
-				<version>3.0.0-M5</version>
+				<version>3.2.5</version>
 			</plugin>
 		    <plugin>
 				<artifactId>maven-assembly-plugin</artifactId>
@@ -318,7 +319,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-javadoc-plugin</artifactId>
-				<version>3.2.0</version>
+				<version>3.3.0</version>
 				<configuration>
 					<show>private</show>
 					<nohelp>true</nohelp>
@@ -332,7 +333,7 @@
 			<plugin>
 				<groupId>org.apache.maven.plugins</groupId>
 				<artifactId>maven-javadoc-plugin</artifactId>
-				<version>3.2.0</version>
+				<version>3.3.0</version>
 				<configuration>
 					<show>public</show>
 				</configuration>
diff --git a/src/org/atriasoft/gale/resource/ResourceTexture.java b/src/org/atriasoft/gale/resource/ResourceTexture.java
index 135e8b3..7b67bc4 100644
--- a/src/org/atriasoft/gale/resource/ResourceTexture.java
+++ b/src/org/atriasoft/gale/resource/ResourceTexture.java
@@ -55,7 +55,14 @@ public class ResourceTexture extends Resource {
 			return null;
 		}
 		resource = new ResourceTexture(uriTexture, textureUnit);
-		final ImageRawData decodedData = ImageLoader.decodePngFile(uriTexture);
+		ImageRawData decodedData;
+		try {
+			decodedData = ImageLoader.decodePngFile(uriTexture);
+		} catch (final Exception e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+			return null;
+		}
 		final ImageByteRGBA img = new ImageByteRGBA(decodedData.getWidth(), decodedData.getHeight());
 		final ByteBuffer mlklmklm = decodedData.getBuffer();
 		final byte[] elemData = new byte[mlklmklm.remaining()];
diff --git a/src/org/atriasoft/gale/test/sample1/Log.java b/src/org/atriasoft/gale/test/sample1/Log.java
deleted file mode 100644
index 2b25c42..0000000
--- a/src/org/atriasoft/gale/test/sample1/Log.java
+++ /dev/null
@@ -1,30 +0,0 @@
-package org.atriasoft.gale.test.sample1;
-
-public class Log {
-	private Log() {}
-	private static final String LIBNAME = "Sample1";
-	public static void print(String data) {
-		System.out.println(data);
-	}
-	public static void critical(String data) {
-		System.out.println("[C] " + LIBNAME + " | " + data);
-	}
-	public static void error(String data) {
-		System.out.println("[E] " + LIBNAME + " | " + data);
-	}
-	public static void warning(String data) {
-		System.out.println("[W] " + LIBNAME + " | " + data);
-	}
-	public static void info(String data) {
-		System.out.println("[I] " + LIBNAME + " | " + data);
-	}
-	public static void debug(String data) {
-		System.out.println("[D] " + LIBNAME + " | " + data);
-	}
-	public static void verbose(String data) {
-		System.out.println("[V] " + LIBNAME + " | " + data);
-	}
-	public static void todo(String data) {
-		System.out.println("[TODO] " + LIBNAME + " | " + data);
-	}
-}
diff --git a/src/org/atriasoft/gale/tools/ImageLoader.java b/src/org/atriasoft/gale/tools/ImageLoader.java
index 4bba13a..96615d0 100644
--- a/src/org/atriasoft/gale/tools/ImageLoader.java
+++ b/src/org/atriasoft/gale/tools/ImageLoader.java
@@ -5,12 +5,11 @@ import java.io.InputStream;
 import java.nio.ByteBuffer;
 
 import org.atriasoft.etk.Uri;
-
 import org.atriasoft.pngdecoder.PNGDecoder;
 import org.atriasoft.pngdecoder.PNGDecoder.Format;
 
 public class ImageLoader {
-	public static ImageRawData decodePngFile(final Uri filename) {
+	public static ImageRawData decodePngFile(final Uri filename) throws Exception {
 		ByteBuffer buf = null;
 		int tWidth = 0;
 		int tHeight = 0;
@@ -18,6 +17,9 @@ public class ImageLoader {
 		try {
 			// Open the PNG file as an InputStream
 			final InputStream in = Uri.getStream(filename);
+			if (in == null) {
+				throw new Exception("fail to get th estream ...");
+			}
 			// Link the PNG decoder to this stream
 			final PNGDecoder decoder = new PNGDecoder(in);
 			// Get the width and height of the texture