diff --git a/.asf.yaml b/.asf.yaml
new file mode 100644
index 0000000..d4d0dd5
--- /dev/null
+++ b/.asf.yaml
@@ -0,0 +1,3 @@
+github:
+  dependabot_alerts: false
+  dependabot_updates: false
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..5b783ed
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,17 @@
+/target
+.idea
+.classpath
+.metadata
+.project
+.settings
+.externalToolBuilders
+maven-eclipse.xml
+*.swp
+*.iml
+*.ipr
+*.iws
+*.bak
+.vlt
+.DS_Store
+jcr.log
+atlassian-ide-plugin.xml
diff --git a/.sling-module.json b/.sling-module.json
new file mode 100644
index 0000000..3f2b4e4
--- /dev/null
+++ b/.sling-module.json
@@ -0,0 +1,8 @@
+{
+  "jenkins": {
+    "jdks": [
+      17,
+      11
+    ]
+  }
+}
diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000..0fa18e5
--- /dev/null
+++ b/CODE_OF_CONDUCT.md
@@ -0,0 +1,22 @@
+<!--/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+  ~ Licensed to the Apache Software Foundation (ASF) under one
+  ~ or more contributor license agreements.  See the NOTICE file
+  ~ distributed with this work for additional information
+  ~ regarding copyright ownership.  The ASF licenses this file
+  ~ to you under the Apache License, Version 2.0 (the
+  ~ "License"); you may not use this file except in compliance
+  ~ with the License.  You may obtain a copy of the License at
+  ~
+  ~   http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing,
+  ~ software distributed under the License is distributed on an
+  ~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  ~ KIND, either express or implied.  See the License for the
+  ~ specific language governing permissions and limitations
+  ~ under the License.
+  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/-->
+Apache Software Foundation Code of Conduct
+====
+
+Being an Apache project, Apache Sling adheres to the Apache Software Foundation's [Code of Conduct](https://www.apache.org/foundation/policies/conduct.html).
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..ac82a1a
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,24 @@
+<!--/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+  ~ Licensed to the Apache Software Foundation (ASF) under one
+  ~ or more contributor license agreements.  See the NOTICE file
+  ~ distributed with this work for additional information
+  ~ regarding copyright ownership.  The ASF licenses this file
+  ~ to you under the Apache License, Version 2.0 (the
+  ~ "License"); you may not use this file except in compliance
+  ~ with the License.  You may obtain a copy of the License at
+  ~
+  ~   http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing,
+  ~ software distributed under the License is distributed on an
+  ~ "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  ~ KIND, either express or implied.  See the License for the
+  ~ specific language governing permissions and limitations
+  ~ under the License.
+  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*/-->
+Contributing
+====
+
+Thanks for choosing to contribute!
+
+You will find all the necessary details about how you can do this at https://sling.apache.org/contributing.html.
diff --git a/Jenkinsfile b/Jenkinsfile
new file mode 100644
index 0000000..f582519
--- /dev/null
+++ b/Jenkinsfile
@@ -0,0 +1,20 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+slingOsgiBundleBuild()
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..d645695
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
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+
+      "You" (or "Your") shall mean an individual or Legal Entity
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+      "Source" form shall mean the preferred form for making modifications,
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+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
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+      the terms of any separate license agreement you may have executed
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+   6. Trademarks. This License does not grant permission to use the trade
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+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
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+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
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+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..7d24ba6
--- /dev/null
+++ b/README.md
@@ -0,0 +1,15 @@
+[![Apache Sling](https://sling.apache.org/res/logos/sling.png)](https://sling.apache.org)
+
+&#32;[![Build Status](https://ci-builds.apache.org/job/Sling/job/modules/job/sling-org-apache-sling-commons-permissions-sling/job/master/badge/icon)](https://ci-builds.apache.org/job/Sling/job/modules/job/sling-org-apache-sling-commons-permissions-sling/job/master/)&#32;[![Test Status](https://img.shields.io/jenkins/tests.svg?jobUrl=https://ci-builds.apache.org/job/Sling/job/modules/job/sling-org-apache-sling-commons-permissions-sling/job/master/)](https://ci-builds.apache.org/job/Sling/job/modules/job/sling-org-apache-sling-commons-permissions-sling/job/master/test/?width=800&height=600)&#32;[![Coverage](https://sonarcloud.io/api/project_badges/measure?project=apache_sling-org-apache-sling-commons-permissions-sling&metric=coverage)](https://sonarcloud.io/dashboard?id=apache_sling-org-apache-sling-commons-permissions-sling)&#32;[![Sonarcloud Status](https://sonarcloud.io/api/project_badges/measure?project=apache_sling-org-apache-sling-commons-permissions-sling&metric=alert_status)](https://sonarcloud.io/dashboard?id=apache_sling-org-apache-sling-commons-permissions-sling)&#32;[![JavaDoc](https://www.javadoc.io/badge/org.apache.sling/org.apache.sling.commons.permissions.sling.svg)](https://www.javadoc.io/doc/org.apache.sling/org.apache.sling.commons.permissions.sing)&#32;[![Maven Central](https://maven-badges.herokuapp.com/maven-central/org.apache.sling/org.apache.sling.commons.permissions.sling/badge.svg)](https://search.maven.org/#search%7Cga%7C1%7Cg%3A%22org.apache.sling%22%20a%3A%22org.apache.sling.commons.permissions.sling%22) [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](https://www.apache.org/licenses/LICENSE-2.0)
+
+# Apache Sling Commons Permissions Sling
+
+This module is part of the [Apache Sling](https://sling.apache.org) project.
+
+This module provides an implementation of the Sling Commons Permissions API based on Sling Resource and JCR APIs.
+
+## Sling Permissions Service
+
+The Sling Permissions Service maps permissions to JCR items and checks if given `Principal` has read access via `Session#itemExists($permission)`.
+
+The root path of the permissions (hierarchy) is configurable.
diff --git a/bnd.bnd b/bnd.bnd
new file mode 100644
index 0000000..e36a0d6
--- /dev/null
+++ b/bnd.bnd
@@ -0,0 +1,3 @@
+-removeheaders:\
+  Include-Resource,\
+  Private-Package
diff --git a/checkstyle-suppressions.xml b/checkstyle-suppressions.xml
new file mode 100644
index 0000000..12cdfea
--- /dev/null
+++ b/checkstyle-suppressions.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+-->
+<!DOCTYPE suppressions PUBLIC "-//Checkstyle//DTD SuppressionFilter Configuration 1.2//EN" "https://checkstyle.org/dtds/suppressions_1_2.dtd">
+<suppressions>
+  <suppress checks="MissingJavadocMethod" files=".*\/internal\/.*\.java"/>
+</suppressions>
diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000..6fcdd0c
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,293 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+-->
+<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+
+  <modelVersion>4.0.0</modelVersion>
+
+  <parent>
+    <groupId>org.apache.sling</groupId>
+    <artifactId>sling-bundle-parent</artifactId>
+    <version>49</version>
+    <relativePath />
+  </parent>
+
+  <artifactId>org.apache.sling.commons.permissions.sling</artifactId>
+  <version>1.0.0-SNAPSHOT</version>
+
+  <name>Apache Sling Commons Permissions Sling</name>
+  <description>Apache Sling Commons Permissions implementation based on Sling Resource and JCR APIs</description>
+
+  <properties>
+    <sling.java.version>8</sling.java.version>
+    <javadoc.excludePackageNames />
+    <project.build.outputTimestamp>1970-01-01T00:00:00Z</project.build.outputTimestamp>
+    <org.ops4j.pax.exam.version>4.13.3</org.ops4j.pax.exam.version>
+  </properties>
+
+  <scm>
+    <connection>scm:git:https://gitbox.apache.org/repos/asf/sling-org-apache-sling-commons-permissions-sling.git</connection>
+    <developerConnection>scm:git:https://gitbox.apache.org/repos/asf/sling-org-apache-sling-commons-permissions-sling.git</developerConnection>
+    <url>https://gitbox.apache.org/repos/asf?p=sling-org-apache-sling-commons-permissions-sling.git</url>
+  </scm>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>biz.aQute.bnd</groupId>
+        <artifactId>bnd-baseline-maven-plugin</artifactId>
+        <configuration>
+          <skip>true</skip>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-failsafe-plugin</artifactId>
+        <executions>
+          <execution>
+            <goals>
+              <goal>integration-test</goal>
+              <goal>verify</goal>
+            </goals>
+          </execution>
+        </executions>
+        <configuration>
+          <redirectTestOutputToFile>true</redirectTestOutputToFile>
+          <systemPropertyVariables combine.children="append">
+            <bundle.filename>${basedir}/target/${project.build.finalName}.jar</bundle.filename>
+          </systemPropertyVariables>
+        </configuration>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.servicemix.tooling</groupId>
+        <artifactId>depends-maven-plugin</artifactId>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-checkstyle-plugin</artifactId>
+        <version>3.2.0</version>
+        <dependencies>
+          <dependency>
+            <groupId>com.puppycrawl.tools</groupId>
+            <artifactId>checkstyle</artifactId>
+            <version>10.4</version>
+          </dependency>
+          <dependency>
+            <groupId>de.bildschirmarbeiter</groupId>
+            <artifactId>checkstyle</artifactId>
+            <version>3</version>
+          </dependency>
+        </dependencies>
+        <configuration>
+          <configLocation>checks.xml</configLocation>
+          <suppressionsLocation>checkstyle-suppressions.xml</suppressionsLocation>
+          <suppressionsFileExpression>checkstyle.suppressions.file</suppressionsFileExpression>
+        </configuration>
+        <executions>
+          <execution>
+            <phase>validate</phase>
+            <goals>
+              <goal>check</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-pmd-plugin</artifactId>
+        <version>3.19.0</version>
+        <configuration>
+          <targetJdk>${sling.java.version}</targetJdk>
+        </configuration>
+        <executions>
+          <execution>
+            <phase>process-classes</phase>
+            <goals>
+              <goal>check</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+      <plugin>
+        <groupId>com.github.spotbugs</groupId>
+        <artifactId>spotbugs-maven-plugin</artifactId>
+        <version>4.7.2.0</version>
+        <configuration>
+          <excludeFilterFile>spotbugs-exclude.xml</excludeFilterFile>
+          <plugins>
+            <plugin>
+              <groupId>com.h3xstream.findsecbugs</groupId>
+              <artifactId>findsecbugs-plugin</artifactId>
+              <version>1.12.0</version>
+            </plugin>
+          </plugins>
+        </configuration>
+        <executions>
+          <execution>
+            <phase>process-classes</phase>
+            <goals>
+              <goal>check</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+
+  <dependencies>
+    <!-- javax -->
+    <dependency>
+      <groupId>javax.inject</groupId>
+      <artifactId>javax.inject</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>javax.jcr</groupId>
+      <artifactId>jcr</artifactId>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>javax.servlet</groupId>
+      <artifactId>javax.servlet-api</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <!-- OSGi -->
+    <dependency>
+      <groupId>org.osgi</groupId>
+      <artifactId>org.osgi.service.cm</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.osgi</groupId>
+      <artifactId>org.osgi.service.component.annotations</artifactId>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.osgi</groupId>
+      <artifactId>org.osgi.service.metatype.annotations</artifactId>
+      <scope>provided</scope>
+    </dependency>
+    <!-- Apache Commons -->
+    <dependency>
+      <groupId>org.apache.commons</groupId>
+      <artifactId>commons-lang3</artifactId>
+      <scope>test</scope>
+      <version>3.12.0</version>
+    </dependency>
+    <!-- Apache Felix -->
+    <dependency>
+      <groupId>org.apache.felix</groupId>
+      <artifactId>org.apache.felix.framework</artifactId>
+      <scope>test</scope>
+      <version>7.0.5</version>
+    </dependency>
+    <!--  Apache Jackrabbit -->
+    <dependency>
+      <groupId>org.apache.jackrabbit</groupId>
+      <artifactId>jackrabbit-api</artifactId>
+      <scope>test</scope>
+      <version>2.0.0</version>
+    </dependency>
+    <!-- Apache Sling -->
+    <dependency>
+      <groupId>org.apache.sling</groupId>
+      <artifactId>org.apache.sling.api</artifactId>
+      <scope>provided</scope>
+      <version>2.11.0</version>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.sling</groupId>
+      <artifactId>org.apache.sling.commons.permissions</artifactId>
+      <scope>provided</scope>
+      <version>1.0.0-SNAPSHOT</version>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.sling</groupId>
+      <artifactId>org.apache.sling.testing.paxexam</artifactId>
+      <scope>test</scope>
+      <version>4.0.0-SNAPSHOT</version>
+    </dependency>
+    <!-- nullability -->
+    <dependency>
+      <groupId>org.jetbrains</groupId>
+      <artifactId>annotations</artifactId>
+      <scope>provided</scope>
+    </dependency>
+    <!-- logging -->
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-api</artifactId>
+      <scope>provided</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-simple</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <!-- testing -->
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.servicemix.bundles</groupId>
+      <artifactId>org.apache.servicemix.bundles.hamcrest</artifactId>
+      <scope>test</scope>
+      <version>1.3_1</version>
+    </dependency>
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
+      <scope>test</scope>
+      <version>4.9.0</version>
+    </dependency>
+    <dependency>
+      <groupId>org.ops4j.pax.exam</groupId>
+      <artifactId>pax-exam</artifactId>
+      <scope>test</scope>
+      <version>${org.ops4j.pax.exam.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>org.ops4j.pax.exam</groupId>
+      <artifactId>pax-exam-cm</artifactId>
+      <scope>test</scope>
+      <version>${org.ops4j.pax.exam.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>org.ops4j.pax.exam</groupId>
+      <artifactId>pax-exam-container-forked</artifactId>
+      <scope>test</scope>
+      <version>${org.ops4j.pax.exam.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>org.ops4j.pax.exam</groupId>
+      <artifactId>pax-exam-junit4</artifactId>
+      <scope>test</scope>
+      <version>${org.ops4j.pax.exam.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>org.ops4j.pax.exam</groupId>
+      <artifactId>pax-exam-link-mvn</artifactId>
+      <scope>test</scope>
+      <version>${org.ops4j.pax.exam.version}</version>
+    </dependency>
+  </dependencies>
+
+</project>
diff --git a/spotbugs-exclude.xml b/spotbugs-exclude.xml
new file mode 100644
index 0000000..73e4a4e
--- /dev/null
+++ b/spotbugs-exclude.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+    Licensed to the Apache Software Foundation (ASF) under one
+    or more contributor license agreements.  See the NOTICE file
+    distributed with this work for additional information
+    regarding copyright ownership.  The ASF licenses this file
+    to you under the Apache License, Version 2.0 (the
+    "License"); you may not use this file except in compliance
+    with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing,
+    software distributed under the License is distributed on an
+    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+    KIND, either express or implied.  See the License for the
+    specific language governing permissions and limitations
+    under the License.
+-->
+<FindBugsFilter>
+  <Match>
+    <Bug pattern="EI_EXPOSE_REP2"/>
+    <Class name="org.apache.sling.commons.permissions.sling.internal.SlingPermissionsService"/>
+    <Method name="activate"/>
+  </Match>
+</FindBugsFilter>
diff --git a/src/main/java/org/apache/sling/commons/permissions/sling/internal/SlingPermissionsService.java b/src/main/java/org/apache/sling/commons/permissions/sling/internal/SlingPermissionsService.java
new file mode 100644
index 0000000..637b859
--- /dev/null
+++ b/src/main/java/org/apache/sling/commons/permissions/sling/internal/SlingPermissionsService.java
@@ -0,0 +1,102 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.sling.commons.permissions.sling.internal;
+
+import java.security.Principal;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Objects;
+
+import javax.jcr.Session;
+
+import org.apache.sling.api.resource.ResourceResolver;
+import org.apache.sling.api.resource.ResourceResolverFactory;
+import org.apache.sling.commons.permissions.PermissionsService;
+import org.jetbrains.annotations.NotNull;
+import org.osgi.service.component.annotations.Activate;
+import org.osgi.service.component.annotations.Component;
+import org.osgi.service.component.annotations.ConfigurationPolicy;
+import org.osgi.service.component.annotations.Deactivate;
+import org.osgi.service.component.annotations.Reference;
+import org.osgi.service.component.annotations.ReferencePolicy;
+import org.osgi.service.component.annotations.ReferencePolicyOption;
+import org.osgi.service.metatype.annotations.Designate;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Service which checks for permissions using Sling Resource and JCR APIs.
+ */
+@Component(
+    configurationPolicy = ConfigurationPolicy.REQUIRE
+)
+@Designate(
+    ocd = SlingPermissionsServiceConfiguration.class,
+    factory = true
+)
+public final class SlingPermissionsService implements PermissionsService {
+
+    @Reference(
+        policy = ReferencePolicy.DYNAMIC,
+        policyOption = ReferencePolicyOption.GREEDY
+    )
+    @SuppressWarnings("java:S3077")
+    private volatile ResourceResolverFactory resourceResolverFactory;
+
+    private SlingPermissionsServiceConfiguration configuration;
+
+    private final Logger logger = LoggerFactory.getLogger(SlingPermissionsService.class);
+
+    public SlingPermissionsService() { //
+    }
+
+    @Activate
+    @SuppressWarnings("unused")
+    private void activate(final SlingPermissionsServiceConfiguration configuration) {
+        logger.debug("activating");
+        this.configuration = configuration;
+    }
+
+    @Deactivate
+    @SuppressWarnings("unused")
+    private void deactivate() {
+        logger.debug("deactivating");
+    }
+
+    @Override
+    @SuppressWarnings({"java:S1874", "checkstyle:IllegalCatch", "checkstyle:ReturnCount"})
+    public boolean hasPermission(final @NotNull Principal principal, @NotNull final String permission) {
+        logger.debug("checking permission '{}' for '{}'", permission, principal.getName());
+        final Map<String, Object> authenticationInfo = new HashMap<>();
+        authenticationInfo.put(ResourceResolverFactory.USER_IMPERSONATION, principal.getName());
+        try (ResourceResolver resourceResolver = resourceResolverFactory.getAdministrativeResourceResolver(authenticationInfo)) {
+            final Session session = resourceResolver.adaptTo(Session.class);
+            if (Objects.isNull(session)) {
+                logger.error("adapting resource resolver to session failed");
+                return false;
+            }
+            final String path = String.format("%s/%s", configuration.path(), permission);
+            return session.itemExists(path);
+        } catch (Exception e) {
+            logger.error(e.getMessage(), e);
+            return false;
+        }
+    }
+
+}
diff --git a/src/main/java/org/apache/sling/commons/permissions/sling/internal/SlingPermissionsServiceConfiguration.java b/src/main/java/org/apache/sling/commons/permissions/sling/internal/SlingPermissionsServiceConfiguration.java
new file mode 100644
index 0000000..34e5e51
--- /dev/null
+++ b/src/main/java/org/apache/sling/commons/permissions/sling/internal/SlingPermissionsServiceConfiguration.java
@@ -0,0 +1,36 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.sling.commons.permissions.sling.internal;
+
+import org.osgi.service.metatype.annotations.AttributeDefinition;
+import org.osgi.service.metatype.annotations.ObjectClassDefinition;
+
+@ObjectClassDefinition(
+    name = "Apache Sling Commons Permissions “Sling Permissions Service“",
+    description = "Checks for permissions using Sling Resource and JCR APIs."
+)
+@interface SlingPermissionsServiceConfiguration {
+
+    @AttributeDefinition(
+        name = "Path",
+        description = "Root path of the permissions (hierarchy) in JCR"
+    )
+    String path() default "/libs/sling/permissions";
+
+}
diff --git a/src/main/java/org/apache/sling/commons/permissions/sling/internal/package-info.java b/src/main/java/org/apache/sling/commons/permissions/sling/internal/package-info.java
new file mode 100644
index 0000000..2162fb5
--- /dev/null
+++ b/src/main/java/org/apache/sling/commons/permissions/sling/internal/package-info.java
@@ -0,0 +1,23 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/**
+ * Provides an implementation of the Apache Sling Commons Permissions API based on Sling Resource and JCR API.
+ */
+package org.apache.sling.commons.permissions.sling.internal;
diff --git a/src/test/java/org/apache/sling/commons/permissions/sling/internal/SlingPermissionsServiceTest.java b/src/test/java/org/apache/sling/commons/permissions/sling/internal/SlingPermissionsServiceTest.java
new file mode 100644
index 0000000..ea24be2
--- /dev/null
+++ b/src/test/java/org/apache/sling/commons/permissions/sling/internal/SlingPermissionsServiceTest.java
@@ -0,0 +1,61 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.sling.commons.permissions.sling.internal;
+
+import java.security.Principal;
+
+import javax.jcr.Session;
+
+import org.apache.commons.lang3.reflect.FieldUtils;
+import org.apache.sling.api.resource.LoginException;
+import org.apache.sling.api.resource.ResourceResolver;
+import org.apache.sling.api.resource.ResourceResolverFactory;
+import org.junit.Test;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.mockito.ArgumentMatchers.anyMap;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+public class SlingPermissionsServiceTest {
+
+    @Test
+    public void testHasPermissionFailGettingResourceResolver() throws Exception {
+        final Principal principal = mock(Principal.class);
+        final SlingPermissionsService service = new SlingPermissionsService();
+        final ResourceResolverFactory resourceResolverFactory = mock(ResourceResolverFactory.class);
+        when(resourceResolverFactory.getAdministrativeResourceResolver(anyMap())).thenThrow(LoginException.class);
+        FieldUtils.writeDeclaredField(service, "resourceResolverFactory", resourceResolverFactory, true);
+        assertThat(service.hasPermission(principal, "p"), is(false));
+    }
+
+    @Test
+    public void testHasPermissionFailAdaptingResourceResolverWithNullSession() throws Exception {
+        final Principal principal = mock(Principal.class);
+        final SlingPermissionsService service = new SlingPermissionsService();
+        final ResourceResolverFactory resourceResolverFactory = mock(ResourceResolverFactory.class);
+        final ResourceResolver resourceResolver = mock(ResourceResolver.class);
+        when(resourceResolver.adaptTo(Session.class)).thenReturn(null);
+        when(resourceResolverFactory.getAdministrativeResourceResolver(anyMap())).thenReturn(resourceResolver);
+        FieldUtils.writeDeclaredField(service, "resourceResolverFactory", resourceResolverFactory, true);
+        assertThat(service.hasPermission(principal, "p"), is(false));
+    }
+
+}
\ No newline at end of file
diff --git a/src/test/java/org/apache/sling/commons/permissions/sling/it/tests/PermissionsTestSupport.java b/src/test/java/org/apache/sling/commons/permissions/sling/it/tests/PermissionsTestSupport.java
new file mode 100644
index 0000000..22590fd
--- /dev/null
+++ b/src/test/java/org/apache/sling/commons/permissions/sling/it/tests/PermissionsTestSupport.java
@@ -0,0 +1,40 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.sling.commons.permissions.sling.it.tests;
+
+import org.apache.sling.testing.paxexam.TestSupport;
+import org.ops4j.pax.exam.options.ModifiableCompositeOption;
+
+import static org.ops4j.pax.exam.CoreOptions.composite;
+import static org.ops4j.pax.exam.CoreOptions.mavenBundle;
+
+public abstract class PermissionsTestSupport extends TestSupport {
+
+    protected ModifiableCompositeOption baseConfiguration() {
+        return composite(
+            super.baseConfiguration(),
+            // Sling Commons Permissions
+            testBundle("bundle.filename"),
+            mavenBundle().groupId("org.apache.sling").artifactId("org.apache.sling.commons.permissions").versionAsInProject(),
+            // testing
+            mavenBundle().groupId("org.apache.servicemix.bundles").artifactId("org.apache.servicemix.bundles.hamcrest").versionAsInProject()
+        );
+    }
+
+}
diff --git a/src/test/java/org/apache/sling/commons/permissions/sling/it/tests/SlingPermissionsServiceIT.java b/src/test/java/org/apache/sling/commons/permissions/sling/it/tests/SlingPermissionsServiceIT.java
new file mode 100644
index 0000000..9bd5b8c
--- /dev/null
+++ b/src/test/java/org/apache/sling/commons/permissions/sling/it/tests/SlingPermissionsServiceIT.java
@@ -0,0 +1,121 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.sling.commons.permissions.sling.it.tests;
+
+import java.security.Principal;
+
+import javax.inject.Inject;
+import javax.jcr.Session;
+
+import org.apache.jackrabbit.api.JackrabbitSession;
+import org.apache.jackrabbit.api.security.principal.PrincipalManager;
+import org.apache.sling.api.resource.ResourceResolver;
+import org.apache.sling.api.resource.ResourceResolverFactory;
+import org.apache.sling.commons.permissions.PermissionsService;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.ops4j.pax.exam.Configuration;
+import org.ops4j.pax.exam.Option;
+import org.ops4j.pax.exam.junit.PaxExam;
+import org.ops4j.pax.exam.spi.reactors.ExamReactorStrategy;
+import org.ops4j.pax.exam.spi.reactors.PerClass;
+
+import static org.apache.sling.testing.paxexam.SlingOptions.slingQuickstartOakTar;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.ops4j.pax.exam.CoreOptions.options;
+import static org.ops4j.pax.exam.cm.ConfigurationAdminOptions.factoryConfiguration;
+import static org.ops4j.pax.exam.cm.ConfigurationAdminOptions.newConfiguration;
+
+@RunWith(PaxExam.class)
+@ExamReactorStrategy(PerClass.class)
+public class SlingPermissionsServiceIT extends PermissionsTestSupport {
+
+    @Inject
+    private ResourceResolverFactory resourceResolverFactory;
+
+    @Inject
+    private PermissionsService permissionsService;
+
+    @Configuration
+    public Option[] configuration() {
+        return options(
+            baseConfiguration(),
+            slingQuickstart(),
+            factoryConfiguration("org.apache.sling.commons.permissions.sling.internal.SlingPermissionsService")
+                .put("path", "/libs/sling/permissions")
+                .asOption(),
+            factoryConfiguration("org.apache.sling.jcr.base.internal.LoginAdminWhitelist.fragment")
+                .put("whitelist.bundles", new String[]{
+                    "org.apache.sling.commons.permissions.sling"
+                })
+                .asOption(),
+            factoryConfiguration("org.apache.sling.jcr.repoinit.RepositoryInitializer")
+                .put("scripts", new String[]{
+                    "create user george with password george\n" +
+                    "create user william with password william\n" +
+                    "create group pub\n" +
+                    "add george to group pub\n" +
+                    "create path (sling:Folder) /libs/sling/permissions/pub/beer/drink\n" +
+                    "create path (sling:Folder) /libs/sling/permissions/pub/beer/serve\n" +
+                    "set ACL for pub\nallow jcr:read on /libs/sling/permissions/pub/beer\nend\n" +
+                    "set ACL for william\nallow jcr:read on /libs/sling/permissions/pub/beer\nend\n" +
+                    "set ACL for william\ndeny jcr:read on /libs/sling/permissions/pub/beer/drink\nend\n"
+                })
+                .asOption(),
+            newConfiguration("org.apache.sling.jcr.base.internal.LoginAdminWhitelist")
+                .put("whitelist.bundles.regexp", "PAXEXAM-PROBE-.*")
+                .asOption()
+        );
+    }
+
+    protected Option slingQuickstart() {
+        final int httpPort = findFreePort();
+        final String workingDirectory = workingDirectory();
+        return slingQuickstartOakTar(workingDirectory, httpPort);
+    }
+
+    protected Principal getPrincipal(final String name) throws Exception {
+        final ResourceResolver resourceResolver = resourceResolverFactory.getAdministrativeResourceResolver(null);
+        final JackrabbitSession session = (JackrabbitSession) resourceResolver.adaptTo(Session.class);
+        final PrincipalManager principalManager = session.getPrincipalManager();
+        return principalManager.getPrincipal(name);
+    }
+
+    @Test
+    public void testGeorgesPermission() throws Exception {
+        final Principal principal = getPrincipal("george");
+        assertThat(permissionsService.hasPermission(principal, "pub/beer/serve"), is(true));
+        assertThat(permissionsService.hasPermission(principal, "pub/beer/drink"), is(true));
+    }
+
+    @Test
+    public void testWilliamsPermission() throws Exception {
+        final Principal principal = getPrincipal("william");
+        assertThat(permissionsService.hasPermission(principal, "pub/beer/serve"), is(true));
+        assertThat(permissionsService.hasPermission(principal, "pub/beer/drink"), is(false));
+    }
+
+    @Test
+    public void testNonExistingPermission() throws Exception {
+        final Principal principal = getPrincipal("william");
+        assertThat(permissionsService.hasPermission(principal, "pub/beer/foo"), is(false));
+    }
+
+}