test/jdk/javax/net/ssl/compatibility/README

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##### Summary #####
This test is used to check the interop compatibility on JSSE among different
JDK releases. The oldest version supported by the test is JDK 8. Some of Java
source files, like JdkInfoUtils.java, JdkProcServer.java and JdkProcClient.java,
use only JDK 8-compliant language features and APIs, in order to allowing
different JDK releases can load and run associated classes.

##### Usage #####
jtreg [-options] \
    [-Dtest.debug=<true|false>] \
    [-Dtest.jdk.list.file=</path/to/jdkListFile>] \
    $JDK_WORKSPACE/test/jdk/javax/net/ssl/compatibility/<XXX.java>

Besides the common jtreg options, like -jdk, this test introduces some more
properties:
test.debug
    It indicates if the test enable -Djavax.net.debug=all. This is a boolean
    property, and the default value is false.
    It is not mandatory.

test.jdk.list.file
    It indicate the path of a file, which lists the absolute paths of different
    JDK builds. If no this property, the current testing JDK, specified by JTREG
    option -jdk, is used as the testing JDK.
    It is not mandatory.

##### Usage Examples #####
$ cat /path/to/jdkList
/path/to/jdk8
/path/to/jdk9
/path/to/jdk10

$ jtreg -jdk:/path/to/latest/jdk \
    -Ddebug=true \
    -Dtest.jdk.list.file=/path/to/jdkList \
    $JDK_WS/jdk/test/javax/net/ssl/compatibility/<XXX.java>
The above example uses a file "/path/to/jdkList" to contain the paths of local
different JDK builds through 8 to 10. The execution uses each of JDK builds as
server and client respectively. And it enables SSL debug flag, and tests the
full parameter value set.