feat(jdtls): surface Lombok-generated methods in document symbols, bump jdtls version (#1434)

* feat(jdtls): surface Lombok-generated methods in document symbols

JDTLS' DocumentSymbolHandler filtered out every SourceMethod where
JDTUtils.isGenerated() was true, so Lombok-synthesised methods (getX/setX,
builder(), equals/hashCode/toString, withX, fluent accessors, ...) never
reached the LSP client. As a result Serena's symbol-aware tools — find_symbol,
get_symbols_overview, replace_symbol_body, insert_before_symbol,
insert_after_symbol — could not see, address or edit any Lombok-generated
member; only search_for_pattern / replace_content (text-based) worked.

Upstream introduced an opt-in preference java.symbols.includeGeneratedCode
in eclipse-jdtls/eclipse.jdt.ls#3706 (merged 2026-02-24) and surfaced it
through redhat-developer/vscode-java#4335. First vscode-java release with
the new JDTLS build is v1.53.0 (2026-02-26). Serena was pinned to v1.42.0-561,
well before the fix existed.

Changes:
- New ls_specific_settings.java.lombok_show_generated setting (default true);
  forwarded to JDTLS as java.symbols.includeGeneratedCode in initialize
  params. Older servers ignore the unknown preference key silently.
- Bump bundled vscode-java DEFAULT 1.42.0-561 -> 1.54.0-923 (brings JRE
  21.0.10, Lombok 1.18.39 and Equinox launcher 1.7.100). INITIAL stays at
  1.42.0-561, so per the per-version install-dir convention from #1438 the
  new build lands in vscode-java-1.54.0-923/ while legacy vscode-java/
  caches and any explicit vscode_java_version: '1.42.0-561' override keep
  working.
- New VsixResourcePaths dataclass + INITIAL/DEFAULT_VSCODE_JAVA_PATHS pin
  the JRE / Lombok / launcher filenames *inside* the VSIX. Without this,
  bumping the archive would break users on legacy 1.42.0-561 because
  resource paths inside the archive change between releases. Resolution
  mirrors SHA pinning: known versions get their pinned paths; any other
  version raises SolidLSPException with a pointer to upstream-jdtls mode
  (which derives paths dynamically and needs no pinning).
- Drop dead 'static/vscode-java/...' placeholder in initialize params; the
  real runtimes[] is overwritten below from runtime_dependency_paths
  .jre_home_path, which is correct in both default-VSIX and upstream-jdtls
  modes.
- Test fixtures: Lombok provided dep in test_repo/pom.xml plus
  LombokModel / FluentLombokModel / DefaultGreeter covering @Data, @Builder
  (toBuilder=true), @With, @Delegate, @AllArgsConstructor, @NoArgsConstructor
  and @Accessors(fluent=true). Regression test in test_java_basic.py
  asserts every generated-method shape lands in document symbols.

Closes #1432

test/resources/repos/java/test_repo/pom.xml

@@ -11,8 +11,18 @@
         <maven.compiler.source>21</maven.compiler.source>
         <maven.compiler.target>21</maven.compiler.target>
         <maven.compiler.plugin.version>3.13.0</maven.compiler.plugin.version>
+        <lombok.version>1.18.38</lombok.version>
     </properties>
-    
+
+    <dependencies>
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>${lombok.version}</version>
+            <scope>provided</scope>
+        </dependency>
+    </dependencies>
+
     <build>
         <plugins>
             <plugin>
@@ -22,6 +32,13 @@
                 <configuration>
                     <source>21</source>
                     <target>21</target>
+                    <annotationProcessorPaths>
+                        <path>
+                            <groupId>org.projectlombok</groupId>
+                            <artifactId>lombok</artifactId>
+                            <version>${lombok.version}</version>
+                        </path>
+                    </annotationProcessorPaths>
                 </configuration>
             </plugin>
         </plugins>

test/resources/repos/java/test_repo/src/main/java/test_repo/DefaultGreeter.java

@@ -0,0 +1,13 @@
+package test_repo;
+
+class DefaultGreeter implements LombokModel.Greeter {
+    @Override
+    public String greet() {
+        return "hi";
+    }
+
+    @Override
+    public String farewell() {
+        return "bye";
+    }
+}

test/resources/repos/java/test_repo/src/main/java/test_repo/FluentLombokModel.java

@@ -0,0 +1,14 @@
+package test_repo;
+
+import lombok.Getter;
+import lombok.Setter;
+import lombok.experimental.Accessors;
+
+/** Verifies prefix-stripped fluent accessors generated by @Accessors(fluent=true). */
+@Getter
+@Setter
+@Accessors(fluent = true)
+public class FluentLombokModel {
+    private String host;
+    private String tag;
+}

test/resources/repos/java/test_repo/src/main/java/test_repo/LombokModel.java

@@ -0,0 +1,27 @@
+package test_repo;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+import lombok.With;
+import lombok.experimental.Delegate;
+
+@Data
+@Builder(toBuilder = true)
+@With
+@AllArgsConstructor
+@NoArgsConstructor
+public class LombokModel {
+    private String name;
+    private int age;
+
+    /** Lombok @Delegate forwards every method of Greeter to delegate.* (covers @Delegate generation). */
+    public interface Greeter {
+        String greet();
+        String farewell();
+    }
+
+    @Delegate
+    private final Greeter delegate = new DefaultGreeter();
+}