When building on Linux there the modules.xml is missing from the tools.jar, causing
test failures. These 3 tests fail:
tools/jdeps/APIDeps.java.APIDeps
tools/jdeps/Basic.java.Basic
tools/jdeps/DotFileTest.java.DotFileTest


The root cause appears to be the missing modules.xml, in tools.jar,
the tests emits this message:

jdeps [-classpath, /hudson/jobs/objectweb-test-jdk/workspace/build/jtreg/jtwork/classes/tools/jdeps, -verbose, -P, /hudson/jobs/objectweb-test-jdk/workspace/build/jtreg/jtwork/classes/tools/jdeps/m/Bar.class]
WARNING: modules.xml doesn't exist
Bar.class -> /hudson/jobs/objectweb-test-jdk/workspace/build/jtreg/jtwork/classes/tools/jdeps
Bar.class -> not found
   m.Bar -> b.B jdeps
   m.Bar -> c.C jdeps
   m.Bar -> d.D jdeps
   m.Bar -> f.F jdeps
   m.Bar -> g.G jdeps
   m.Bar -> java.lang.Object not found
   m.Bar -> java.lang.String not found
   m.Bar -> java.lang.management.ManagementFactory not found
   m.Bar -> java.lang.management.RuntimeMXBean not found
   m.Bar -> java.util.HashSet not found
   m.Bar -> java.util.Set not found

Error: Unexpected api-dependencies found: '[jdeps, not found]', expected: '[compact1, compact3, jdeps]'

The failure has been noticed on Linux and Solaris and both these systems have a 16+ cpus, possibly
there is a parallelism and dependency issue involved.