fix issue: java11 template cannot be found. (#82)

* fix issue: java11 template cannot be found.

* 1. use jdkSpecificTemplateRoot to reduce join two times.

Author: andxu

src/controllers/projectController.ts

@@ -54,11 +54,15 @@ export class ProjectController {
         const templateRoot: string = path.join(this.context.extensionPath, "templates");
         const projectFile: string = path.join(projectRoot, ".project");
         try {
+            let jdkSpecificTemplateRoot: string = path.join(templateRoot, `Java${javaVersion}`);
+            if (!await fse.pathExists(jdkSpecificTemplateRoot)) {
+                // fall back to 8
+                jdkSpecificTemplateRoot = path.join(templateRoot, `Java8`);
+            }
             await fse.ensureDir(projectRoot);
-
             await Promise.all([
                 fse.copy(path.join(templateRoot, "App.java.sample"), path.join(projectRoot, "src", "app", "App.java")),
-                fse.copy(path.join(templateRoot, `Java${javaVersion}`), projectRoot),
+                fse.copy(jdkSpecificTemplateRoot, projectRoot),
                 fse.copy(path.join(templateRoot, ".project"), path.join(projectRoot, ".project")),
                 fse.ensureDir(path.join(projectRoot, "bin")),
             ]);

templates/Java11/.classpath

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-10"/>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

templates/Java11/.settings/org.eclipse.jdt.core.prefs

@@ -0,0 +1,11 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=10
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=10
+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.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=10