test/jdk/lambda/separate/Compiler.java

rev 14566 : 8044051: Test jdk/lambda/vm/InterfaceAccessFlagsTest.java gets IOException during compilation
Summary: create the gen-separate directory in the current directory to improve robustness
Reviewed-by: darcy

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 2021, 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.

@@ -52,11 +52,11 @@
     };
 
     private static final AtomicInteger counter = new AtomicInteger();
     private static final String targetDir =
         System.getProperty("lambda.separate.targetDirectory",
-            System.getProperty("java.io.tmpdir") + File.separator + "gen-separate");
+            "." + File.separator + "gen-separate");
     private static final File root = new File(targetDir);
     private static ConcurrentHashMap<String,File> cache =
             new ConcurrentHashMap<>();
 
     Set<Flags> flags;

@@ -187,11 +187,11 @@
             destDir.mkdirs();
             this.fm.setLocation(
                 StandardLocation.CLASS_OUTPUT, Arrays.asList(destDir));
         } catch (IOException e) {
             throw new RuntimeException(
-                "IOException encountered during compilation");
+                "IOException encountered during compilation: " + e.getMessage(), e);
         }
         Boolean result = ct.call();
         if (result == Boolean.FALSE) {
             throw new RuntimeException(
                 "Compilation failure in " + type.getName() + " unit");