do the test skips on Java 6 using existing helpers instead of adding new

Author: kares

src/test/ruby/ssl/test_helper.rb

@@ -147,10 +147,6 @@ def readwrite_loop(context, ssl)
     ssl.close rescue nil
   end
 
-  def java_version
-    java.lang.System.get_property('java.version')[2].to_i
-  end
-
   TEST_KEY_RSA1024 = <<-_end_of_pem_
 -----BEGIN RSA PRIVATE KEY-----
 MIICXgIBAAKBgQDLwsSw1ECnPtT+PkOgHhcGA71nwC2/nL85VBGnRqDxOqjVh7Cx

src/test/ruby/ssl/test_ssl.rb

@@ -96,8 +96,6 @@ def test_ssl_version_tlsv1
   end
 
   def test_ssl_version_tlsv1_1
-    return if java_version < 7 # TLS1_1 is not supported by JDK 6
-
     ctx_proc = Proc.new do |ctx|
       ctx.ssl_version = "TLSv1_1"
     end
@@ -108,11 +106,9 @@ def test_ssl_version_tlsv1_1
       assert_equal("TLSv1.1", ssl.ssl_version)
       ssl.close
     end
-  end
+  end unless java6? # TLS1_1 is not supported by JDK 6
 
   def test_ssl_version_tlsv1_2
-    return if java_version < 7 # TLS1_2 is not supported by JDK 6
-
     ctx_proc = Proc.new do |ctx|
       ctx.ssl_version = "TLSv1_2"
     end
@@ -123,5 +119,6 @@ def test_ssl_version_tlsv1_2
       assert_equal("TLSv1.2", ssl.ssl_version)
       ssl.close
     end
-  end
+  end unless java6? # TLS1_2 is not supported by JDK 6
+
 end