Update to latest dependencies and build tools (#18)

.github/workflows/maven.yml

@@ -0,0 +1,32 @@
+# This workflow will build a Java project with Maven
+# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven
+
+name: Build Tycho
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up JDK 17
+      uses: actions/setup-java@v2
+      with:
+        java-version: '17'
+        distribution: 'adopt'
+    - name: Cache local Maven repository
+      uses: actions/cache@v2
+      with:
+        path: ~/.m2/repository
+        key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
+        restore-keys: |
+          ${{ runner.os }}-maven-
+    - name: Build with Maven
+      run: mvn -U -V -e clean install 

.mvn/extensions.xml

@@ -3,6 +3,6 @@
   <extension>
     <groupId>org.eclipse.tycho.extras</groupId>
     <artifactId>tycho-pomless</artifactId>
-    <version>2.0.0</version>
+    <version>2.5.0</version>
   </extension>
 </extensions>

eclipse-solargraph-plugin/.classpath

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="src" path="src/main/java"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="src" path="src/main/java"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>

eclipse-solargraph-plugin/.settings/org.eclipse.jdt.core.prefs

@@ -1,12 +1,15 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
 org.eclipse.jdt.core.compiler.codegen.methodParameters=do not generate
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
 org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.compliance=11
 org.eclipse.jdt.core.compiler.debug.lineNumber=generate
 org.eclipse.jdt.core.compiler.debug.localVariable=generate
 org.eclipse.jdt.core.compiler.debug.sourceFile=generate
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11

eclipse-solargraph-plugin/META-INF/MANIFEST.MF

@@ -11,7 +11,7 @@ Require-Bundle: org.eclipse.core.runtime,
  org.eclipse.tm4e.ui,
  org.eclipse.ui,
  org.eclipse.ui.genericeditor
-Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Bundle-RequiredExecutionEnvironment: JavaSE-11
 Bundle-ActivationPolicy: lazy
 Automatic-Module-Name: io.github.pyvesb.eclipse_solargraph
 Bundle-ClassPath: .

eclipse-solargraph-target-platform/eclipse-solargraph-target-platform.target

@@ -3,7 +3,7 @@
 <target name="eclipse-solargraph-target-platform">
 	<locations>
 		<location includeAllPlatforms="false" includeConfigurePhase="false" includeMode="planner" includeSource="true" type="InstallableUnit">
-			<repository location="https://download.eclipse.org/releases/2021-09/"/>
+			<repository location="https://download.eclipse.org/releases/2021-12/"/>
 			<unit id="org.eclipse.core.runtime" version="0.0.0"/>
 			<unit id="org.eclipse.debug.ui" version="0.0.0"/>
 			<unit id="org.eclipse.platform.ide" version="0.0.0"/>

pom.xml

@@ -16,7 +16,7 @@
 	</modules>
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<tycho.version>2.4.0</tycho.version>
+		<tycho.version>2.5.0</tycho.version>
 	</properties>
 	<build>
 		<plugins>