RFR: 8235997: JMH test runner should quote VM_OPTIONS and JAVA_OPTIONS sent to -jvmArgs

[Claes Redestad]

Hi,

please review this patch[1] which makes the JMH behave more
in line with expectations when adding multiple flags using
the VM_OPTIONS and JAVA_OPTIONS control variables.

E.g., these fail before the patch:

make test TEST=... MICRO="VM_OPTIONS=-Xmx4g -Xms4g"
make test TEST=... MICRO="JAVA_OPTIONS=-Xmx4g -Xms4g"

Current workaround is to escape the spaces, which will fail with
the proposed patch. Substituting escaped spaces with normal
spaces seems out of scope, though.

Thanks!

/Claes

[1]

diff -r 075c1d68ae8c make/RunTests.gmk
--- a/make/RunTests.gmk	Mon Dec 16 10:49:36 2019 +0100
+++ b/make/RunTests.gmk	Mon Dec 16 13:32:03 2019 +0100
@@ -701,7 +701,8 @@
    endif

    ifneq ($$(MICRO_VM_OPTIONS)$$(MICRO_JAVA_OPTIONS), )
-    $1_MICRO_VM_OPTIONS := -jvmArgs $$(MICRO_VM_OPTIONS) 
$$(MICRO_JAVA_OPTIONS)
+    JMH_JVM_ARGS := $$(MICRO_VM_OPTIONS) $$(MICRO_JAVA_OPTIONS)
+    $1_MICRO_VM_OPTIONS := -jvmArgs $(call ShellQuote,$$(JMH_JVM_ARGS))
    endif

    ifneq ($$(MICRO_ITER), )