diff --git a/.travis.yml b/.travis.yml
index 3248653..650337e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,6 +2,10 @@ language: java
 env:
    - PYTHON_VERSION="2.7"
    - PYTHON_VERSION="3.5"
+jdk:
+   - oraclejdk8
+   - oraclejdk9
+   - openjdk7
 before_install:
    # Get the tag if it wasn't provided. Travis doesn't provide this if it isn't a tagged build.
    - if [ -z $TRAVIS_TAG ]; then TRAVIS_TAG=`git tag --contains` ; fi
diff --git a/_javabridge.pyx b/_javabridge.pyx
index f46d452..03ed2cf 100644
--- a/_javabridge.pyx
+++ b/_javabridge.pyx
@@ -1650,7 +1650,8 @@ cdef class JB_Env:
         '''
         cdef:
             jobject o
-        o = self.env[0].NewStringUTF(self.env, s.encode('utf-8'))
+        sutf8 = s.encode('utf-8')
+        o = self.env[0].NewStringUTF(self.env, sutf8)
         if o == NULL:
             raise MemoryError("Failed to allocate string")
         jbo, e = make_jb_object(self, o)
diff --git a/javabridge/locate.py b/javabridge/locate.py
index b096881..21b0420 100644
--- a/javabridge/locate.py
+++ b/javabridge/locate.py
@@ -114,7 +114,7 @@ def get_out(cmd):
         java_bin = get_out(["bash", "-c", "type -p java"])
         java_dir = get_out(["readlink", "-f", java_bin])
         java_version_string = get_out(["bash", "-c", "java -version"])
-        if re.match('^openjdk', java_version_string) is not None:
+        if re.search('(?i)openjdk', java_version_string) is not None:
             jdk_dir = os.path.join(java_dir, "..", "..", "..")
         elif re.match('^java', java_version_string) is not None:
             jdk_dir = os.path.join(java_dir, "..", "..")
@@ -209,7 +209,7 @@ def find_jre_bin_jdk_so():
         for jre_home in (java_home, os.path.join(java_home, "jre")):
             jre_bin = os.path.join(jre_home, 'bin')
             jre_libexec = os.path.join(jre_home, 'bin' if is_win else 'lib')
-            arches = ('amd64', 'i386') if is_linux else ('',)
+            arches = ('amd64', 'i386', '') if is_linux else ('',)
             lib_prefix = '' if is_win else 'lib'
             lib_suffix = '.dll' if is_win else ('.dylib' if is_mac else '.so')
             for arch in arches:
diff --git a/javabridge/tests/test_jutil.py b/javabridge/tests/test_jutil.py
index 150e39b..5293fa7 100644
--- a/javabridge/tests/test_jutil.py
+++ b/javabridge/tests/test_jutil.py
@@ -270,7 +270,9 @@ def test_03_05_cw_get_annotations(self):
         annotations = c.getAnnotations()
         annotations = javabridge.get_env().get_object_array_elements(annotations)
         self.assertEqual(len(annotations), 1)
-        self.assertEqual(javabridge.to_string(annotations[0]),'@java.lang.Deprecated()')
+        expected = '@java.lang.Deprecated'
+        self.assertEqual(
+            javabridge.to_string(annotations[0])[:len(expected)], expected)
         
     def test_03_06_cw_get_constructors(self):
         c = javabridge.get_class_wrapper('java.lang.String')
diff --git a/setup.py b/setup.py
index 965b163..d400d2a 100644
--- a/setup.py
+++ b/setup.py
@@ -53,6 +53,7 @@ def build_cython():
     compile them.
 
     """
+    distutils.log.info("Building Cython extensions")
     stems = ['_javabridge', '_javabridge_mac', '_javabridge_nomac']
     pyx_filenames = [in_cwd(s + '.pyx') for s in stems]
     c_filenames = [in_cwd(s + '.c') for s in stems]
@@ -62,6 +63,7 @@ def build_cython():
     if len(nc_pyx_filenames) > 0:
         cmd = ['cython'] + nc_pyx_filenames
         subprocess.check_call(cmd)
+    assert all(map(os.path.exists, c_filenames))
 
 def get_jvm_include_dirs():
     '''Return a sequence of paths to include directories for JVM defs'''
@@ -109,7 +111,7 @@ def ext_modules():
             # Build libjvm from jvm.dll on Windows.
             # This assumes that we're using mingw32 for build
             #
-	    # generate the jvm.def file matching to the jvm.dll
+            # generate the jvm.def file matching to the jvm.dll
             cmd = ["gendef", os.path.join(jdk_home,"jre\\bin\\server\\jvm.dll")]
             p = subprocess.Popen(cmd)
             p.communicate()
@@ -172,11 +174,12 @@ def package_path(relpath):
 class build_ext(_build_ext):
     java2cpython_sources = ["java/org_cellprofiler_javabridge_CPython.c"]
     def run(self, *args, **kwargs):
-        self.build_java()
-        result = build_cython()
         if self.inplace:
             dirty = False
             for source in self.get_source_files():
+                if not os.path.exists(source):
+                    dirty = True
+                    break
                 source_mtime = os.stat(source).st_mtime
                 for output in self.get_outputs():
                     if not os.path.isfile(output) or \
@@ -193,9 +196,11 @@ def run(self, *args, **kwargs):
                 dirty = True
         else:
             dirty = True
+        result = build_cython()
         if dirty:
             result = _build_ext.run(self, *args, **kwargs)
             self.build_java2cpython()
+        self.build_java()
         return result
 
     def build_jar_from_sources(self, jar, sources):
@@ -253,7 +258,7 @@ def build_java2cpython(self):
             output_dir=output_dir,
             debug=self.debug,
             library_dirs=library_dirs,
-	    libraries=libraries,
+            libraries=libraries,
             export_symbols=export_symbols,
             extra_postargs=extra_postargs)
         if needs_manifest:
@@ -385,7 +390,7 @@ def get_version():
           install_requires=['numpy'],
           tests_require="nose",
           entry_points={'nose.plugins.0.10': [
-                'javabridge = javabridge.noseplugin:JavabridgePlugin'
+              'javabridge = javabridge.noseplugin:JavabridgePlugin'
                 ]},
           test_suite="nose.collector",
           package_data={"javabridge": [