8071629: Write new test to test -j switch

Reviewed-by: jjg

langtools/test/tools/sjavac/ParallelCompilations.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @summary Test to check that -j option works with more than one value
+ * @bug 8071629
+ * @author sogoel
+ * @library /tools/lib
+ * @build Wrapper ToolBox
+ * @run main Wrapper ParallelCompilations
+ */
+
+import java.io.*;
+import java.nio.file.*;
+import com.sun.tools.sjavac.Main;
+
+class ParallelCompilations extends SJavacTester {
+  public static void main(String[] args) throws Exception {
+    new ParallelCompilations().run();
+  }
+
+  public void run() throws Exception {
+    ToolBox tb = new ToolBox();
+    final String SERVER_ARG = "--server:"
+            + "portfile=testportfile,"
+            + "background=false";
+
+    // Generate 10 files
+    for (int i = 0; i < 10; i++) {
+      String fileName = "Test" + i;
+      String content = "package foo"+ i + ";\n" +
+                       "public class "+ fileName + "{\n" +
+                       "  public static void main(String[] args) {}\n" +
+                       "\n}";
+      Path srcDir = Paths.get("src");
+      tb.writeJavaFiles(srcDir,content);
+    }
+    //Method will throw an exception if compilation fails
+    compile("src", "-d", "classes", "-j", "10", SERVER_ARG, "--log=debug");
+  }
+}