[incubator-kie-drools-5745] Compatibility issue with Spring-boot 3.2

drools-compiler/src/main/java/org/drools/compiler/kie/builder/impl/ClasspathKieProject.java

@@ -45,6 +45,7 @@
 import org.drools.compiler.kie.builder.impl.event.KieServicesEventListerner;
 import org.drools.compiler.kproject.models.KieModuleModelImpl;
 import org.drools.util.IoUtils;
+import org.drools.util.JarUtils;
 import org.drools.util.PortablePath;
 import org.drools.util.StringUtils;
 import org.kie.api.KieServices;
@@ -410,6 +411,9 @@ public static String fixURLFromKProjectPath(URL url) {
             urlPath = urlPath.substring( 0, urlPath.length() - 1 );
         }
 
+        // Replace "/!BOOT-INF/" with "!/BOOT-INF/" to make it consistent with the actual path in the jar file
+        urlPath = JarUtils.replaceNestedPathForSpringBoot32(urlPath);
+
         // remove any remaining protocols, normally only if it was a jar
         int firstSlash = urlPath.indexOf( '/' );
         colonIndex = firstSlash > 0 ? urlPath.lastIndexOf( ":", firstSlash ) : urlPath.lastIndexOf( ":" );

drools-util/src/main/java/org/drools/util/JarUtils.java

@@ -26,6 +26,9 @@ public class JarUtils {
     private static final String SPRING_BOOT_PREFIX = "BOOT-INF/classes/"; // Actual path prefix in Spring Boot JAR
     private static final String SPRING_BOOT_URL_PREFIX = "BOOT-INF/classes!/"; // Spring Boot adds "!" to resource url as a "nest" separator
 
+    private static final String SPRING_BOOT_NESTED_PREFIX_BEFORE_3_2 = "!/BOOT-INF/"; // Before Spring Boot 3.2
+    private static final String SPRING_BOOT_NESTED_PREFIX_AFTER_3_2 = "/!BOOT-INF/"; // Since Spring Boot 3.2
+
     private JarUtils() {
         // Avoid instantiating class
     }
@@ -45,4 +48,17 @@ public static String normalizeSpringBootResourceUrlPath(String resourceUrlPath)
             return resourceUrlPath;
         }
     }
+
+    /**
+     * Replace the new spring-boot nested path representation "/!BOOT-INF/" (introduced since 3.2) with the old "!/BOOT-INF/".
+     * Because the new path representation doesn't meet the path manipulation in the drools codebase.
+     * See https://github.com/spring-projects/spring-boot/wiki/Spring-Boot-3.2-Release-Notes#nested-jar-support
+     */
+    public static String replaceNestedPathForSpringBoot32(String urlPath) {
+        if (urlPath.contains(SPRING_BOOT_NESTED_PREFIX_AFTER_3_2)) {
+            return urlPath.replace(SPRING_BOOT_NESTED_PREFIX_AFTER_3_2, SPRING_BOOT_NESTED_PREFIX_BEFORE_3_2);
+        } else {
+            return urlPath;
+        }
+    }
 }

drools-util/src/test/java/org/drools/util/JarUtilsTest.java

@@ -29,4 +29,16 @@ public void normalizeSpringBootResourceUrlPath() {
         String normalized = JarUtils.normalizeSpringBootResourceUrlPath("BOOT-INF/classes!/org/example/MyClass.class");
         assertThat(normalized).isEqualTo("BOOT-INF/classes/org/example/MyClass.class");
     }
+
+    @Test
+    public void replaceNestedPathForSpringBoot32_shouldNotAffectOldPath() {
+        String result = JarUtils.replaceNestedPathForSpringBoot32("/dir/myapp.jar!/BOOT-INF/lib/mykjar.jar");
+        assertThat(result).isEqualTo("/dir/myapp.jar!/BOOT-INF/lib/mykjar.jar");
+    }
+
+    @Test
+    public void replaceNestedPathForSpringBoot32_shouldReplaceNewPath() {
+        String result = JarUtils.replaceNestedPathForSpringBoot32("/dir/myapp.jar/!BOOT-INF/lib/mykjar.jar");
+        assertThat(result).isEqualTo("/dir/myapp.jar!/BOOT-INF/lib/mykjar.jar");
+    }
 }