removed unuseful instance from SecurityManageProvider

.classpath

@@ -6,11 +6,6 @@
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry excluding="**" kind="src" output="target/classes" path="src/main/resources">
-		<attributes>
-			<attribute name="maven.pomderived" value="true"/>
-		</attributes>
-	</classpathentry>
 	<classpathentry kind="src" output="target/test-classes" path="src/test/java">
 		<attributes>
 			<attribute name="optional" value="true"/>
@@ -18,13 +13,7 @@
 			<attribute name="test" value="true"/>
 		</attributes>
 	</classpathentry>
-	<classpathentry excluding="**" kind="src" output="target/test-classes" path="src/test/resources">
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11">
-		<attributes>
-			<attribute name="maven.pomderived" value="true"/>
-			<attribute name="test" value="true"/>
-		</attributes>
-	</classpathentry>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8">
 		<attributes>
 			<attribute name="maven.pomderived" value="true"/>
 		</attributes>

.settings/org.eclipse.jdt.core.prefs

@@ -1,8 +1,8 @@
 eclipse.preferences.version=1
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
 org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=ignore
 org.eclipse.jdt.core.compiler.release=disabled
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.source=11

pom.xml

@@ -2,34 +2,35 @@
 	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.gcube.common</groupId>
-	<artifactId>common-security</artifactId>
-	<version>1.0.0</version>
-	<name>gcube security</name>
 
-		<scm>
-		<connection>scm:git:https://code-repo.d4science.org/gCubeSystem/common-security</connection>
-		<developerConnection>scm:git:https://code-repo.d4science.org/gCubeSystem/common-security</developerConnection>
-		<url>https://code-repo.d4science.org/gCubeSystem/common-security</url>
-	</scm>
-	
-	<properties>
-		<maven.compiler.target>1.8</maven.compiler.target>
-		<maven.compiler.source>1.8</maven.compiler.source>
-	</properties>
-	
 	<parent>
 		<artifactId>maven-parent</artifactId>
 		<groupId>org.gcube.tools</groupId>
 		<version>1.2.0</version>
 	</parent>
 
+	<groupId>org.gcube.common</groupId>
+	<artifactId>common-security</artifactId>
+	<version>1.0.0</version>
+	<name>gcube security</name>
+
+	<scm>
+		<connection>scm:git:https://code-repo.d4science.org/gCubeSystem/common-security</connection>
+		<developerConnection>scm:git:https://code-repo.d4science.org/gCubeSystem/common-security</developerConnection>
+		<url>https://code-repo.d4science.org/gCubeSystem/common-security</url>
+	</scm>
+	
+	<properties>
+		<maven.compiler.target>11</maven.compiler.target>
+		<maven.compiler.source>11</maven.compiler.source>
+	</properties>
+
 	<dependencyManagement>
 		<dependencies>
 			<dependency>
 				<groupId>org.gcube.distribution</groupId>
 				<artifactId>gcube-bom</artifactId>
-				<version>3.0.0</version>
+				<version>3.0.1-SNAPSHOT</version>
 				<type>pom</type>
 				<scope>import</scope>
 			</dependency>

src/main/java/org/gcube/common/security/AuthorizedTasks.java

@@ -20,20 +20,20 @@ public class AuthorizedTasks {
 	static public <V> Callable<V> bind(final Callable<V> task) {
 
 
-		final Secret secret = SecretManagerProvider.instance.get();
+		final Secret secret = SecretManagerProvider.get();
 
 		return new Callable<V>() {
 			@Override
 			public V call() throws Exception {
 
-				SecretManagerProvider.instance.set(secret);
+				SecretManagerProvider.set(secret);
 
 				try {
 					logger.info("setting on authorized task context {} ", secret.getContext());
 					return task.call();
 				}
 				finally {
-					SecretManagerProvider.instance.reset();
+					SecretManagerProvider.reset();
 				}
 
 			}
@@ -48,20 +48,20 @@ public class AuthorizedTasks {
 	static public <V> Runnable bind(final Runnable task) {
 
 
-		final Secret secret = SecretManagerProvider.instance.get();
+		final Secret secret = SecretManagerProvider.get();
 
 		return new Runnable() {
 			@Override
 			public void run() {
 
-				SecretManagerProvider.instance.set(secret);
+				SecretManagerProvider.set(secret);
 
 				try {
 					logger.info("setting on authorized task context {} ", secret.getContext());
 					task.run();
 				}
 				finally {
-					SecretManagerProvider.instance.reset();
+					SecretManagerProvider.reset();
 				}
 
 			}
@@ -75,12 +75,12 @@ public class AuthorizedTasks {
 	 * @return an equivalent {@link Runnable} task bound to the current scope and user
 	 */
 	static public void executeSafely(final Runnable task, final Secret secret){
-		Secret previousSecret = SecretManagerProvider.instance.get();
+		Secret previousSecret = SecretManagerProvider.get();
 		try {
-			SecretManagerProvider.instance.set(secret);	
+			SecretManagerProvider.set(secret);	
 			task.run();
 		} finally {
-			SecretManagerProvider.instance.set(previousSecret);	
+			SecretManagerProvider.set(previousSecret);	
 		} 
 	}
 	
@@ -92,12 +92,12 @@ public class AuthorizedTasks {
 	 * @return an equivalent {@link Runnable} task bound to the current scope and user
 	 */
 	static public <T> T executeSafely(final Callable<T> task, final Secret secret) throws Throwable {
-		Secret previousSecret = SecretManagerProvider.instance.get();
+		Secret previousSecret = SecretManagerProvider.get();
 		try {
-			SecretManagerProvider.instance.set(secret);	
+			SecretManagerProvider.set(secret);	
 			return task.call();
 		} finally {
-			SecretManagerProvider.instance.set(previousSecret);	
+			SecretManagerProvider.set(previousSecret);	
 		} 
 	}
 		

src/main/java/org/gcube/common/security/providers/SecretManagerProvider.java

@@ -7,8 +7,6 @@ import org.gcube.common.security.secrets.Secret;
  */
 public class SecretManagerProvider {
 
-	public static SecretManagerProvider instance = new SecretManagerProvider();
-	
 	// Thread local variable containing each thread's ID
     private static final InheritableThreadLocal<Secret> thread = new InheritableThreadLocal<Secret>() {
 
@@ -18,19 +16,17 @@ public class SecretManagerProvider {
 		}
 
 	};
-	
-	private SecretManagerProvider(){}
     
-	public Secret get(){
+	public static Secret get(){
 		Secret secret = thread.get();
 		return secret;
 	}
 	
-	public void set(Secret secret){
+	public static void set(Secret secret){
 		thread.set(secret);
 	}
 	
-	public void reset(){
+	public static void reset(){
 		thread.remove();
 	}