Update to java 11

Author: chbloemer

CLAUDE.md

@@ -67,7 +67,7 @@ Built-in template caching using Caffeine cache:
 - Cross-platform testing (Windows/Linux) in CI
 
 ### Dependencies
-- Java 8+ required (builds with Java 8-17)
+- Java 11+ required
 - Core dependencies: Apache Commons (JEXL, IO, Lang, Text), Caffeine cache
 - Optional: GraalVM for JavaScript expression handling
 - Build: Maven 3.0+

README.md

@@ -315,6 +315,9 @@ config.setExpressionHandler(new GraalJsExpressionHandler());
 - [vertx-web](https://vertx.io/docs/vertx-web/java/#_jade_template_engine) jade4j for [Vert.X](http://vertx.io/)
 
 <a name="breaking-changes-2"></a>
+## Breaking Changes in 3.0.0
+- Compiler Level has been raised to Java 11+
+
 ## Breaking Changes in 2.0.0
 - Classes are renamed to pug4j.
 - Default file extension is now .pug

docs/tasks.md

@@ -36,13 +36,13 @@ This document contains a comprehensive list of improvement tasks for the pug4j p
 
 ### Null Safety & Validation
 - [ ] Add null checks before operations that could throw NPE
-- [ ] Replace exception-based control flow in PugConfiguration.java:155-161
+- [ ] Replace exception-based control flow in PugConfiguration.java:154-159
 - [ ] Add parameter validation at method entry points
 - [ ] Remove unnecessary null checks (e.g., Lexer.java:1480-1482)
 - [ ] Add @Nullable and @NonNull annotations throughout codebase
 
 ### Code Cleanup
-- [ ] Remove or implement TODO comments (6 found in codebase)
+- [ ] Remove or implement TODO comments (5 found in codebase: Compiler.java:83, PugTemplate.java:45,63,69, Lexer.java:743)
 - [ ] Add @Deprecated annotations to deprecated methods (PugTemplate.java:45,63,69)
 - [ ] Remove commented-out code or document why it's preserved
 - [ ] Address all FIXME and XXX comments
@@ -193,7 +193,7 @@ This document contains a comprehensive list of improvement tasks for the pug4j p
 - **Critical issues identified:** 15
 - **High priority issues:** 27 (1 completed)
 - **Medium priority issues:** 22
-- **TODO/FIXME comments:** 6
+- **TODO/FIXME comments:** 5
 - **Deprecated classes/methods:** 4
 
 ### Improvement Guidelines
@@ -212,5 +212,5 @@ When working on these tasks:
 - Update documentation for user-facing changes
 
 ---
-*Last updated: 2025-10-09*
+*Last updated: 2025-10-10*
 *Analysis performed by Claude Code*

pom.xml

@@ -74,10 +74,10 @@
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.scm.id>git@github.com</project.scm.id>
-        <maven.compiler.source>1.8</maven.compiler.source>
-        <maven.compiler.target>1.8</maven.compiler.target>
-        <graalvm.version>21.3.15</graalvm.version>
-        <java.version>8</java.version>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+        <graalvm.version>23.1.8</graalvm.version>
+        <java.version>11</java.version>
     </properties>
 
     <profiles>
@@ -87,7 +87,7 @@
                 <jdk>[11,)</jdk>
             </activation>
             <properties>
-                <maven.compiler.release>8</maven.compiler.release>
+                <maven.compiler.release>11</maven.compiler.release>
             </properties>
         </profile>
         <profile>
@@ -300,7 +300,7 @@
         <dependency>
             <groupId>com.github.ben-manes.caffeine</groupId>
             <artifactId>caffeine</artifactId>
-            <version>2.9.3</version>
+            <version>3.2.2</version>
         </dependency>
         <dependency>
             <groupId>com.google.code.gson</groupId>
@@ -310,7 +310,7 @@
         <dependency>
             <groupId>com.vladsch.flexmark</groupId>
             <artifactId>flexmark</artifactId>
-            <version>0.62.2</version>
+            <version>0.64.8</version>
         </dependency>
         <dependency>
             <groupId>org.graalvm.sdk</groupId>
@@ -319,26 +319,20 @@
             <scope>compile</scope>
         </dependency>
         <dependency>
-            <groupId>org.graalvm.js</groupId>
-            <artifactId>js</artifactId>
-            <version>${graalvm.version}</version>
-            <scope>runtime</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.graalvm.js</groupId>
-            <artifactId>js-scriptengine</artifactId>
+            <groupId>org.graalvm.polyglot</groupId>
+            <artifactId>polyglot</artifactId>
             <version>${graalvm.version}</version>
-            <scope>runtime</scope>
         </dependency>
         <dependency>
-            <groupId>org.graalvm.tools</groupId>
-            <artifactId>profiler</artifactId>
+            <groupId>org.graalvm.polyglot</groupId>
+            <artifactId>js-community</artifactId>
             <version>${graalvm.version}</version>
+            <type>pom</type>
             <scope>runtime</scope>
         </dependency>
         <dependency>
-            <groupId>org.graalvm.tools</groupId>
-            <artifactId>chromeinspector</artifactId>
+            <groupId>org.graalvm.js</groupId>
+            <artifactId>js-scriptengine</artifactId>
             <version>${graalvm.version}</version>
             <scope>runtime</scope>
         </dependency>