SAS 9 requires options be defined in the TKMVSENV file for SAS to run
Java applications. There are four options. (Note: All of these TKMVSENV
entries are prefixed ‘TKJNI’):

1) TKJNI_OPT_LIBPATH
This entry is used to specify where your Java Runtime Environment (JRE)
is located.

For example:

   set TKJNI_OPT_LIBPATH=/java/bin/classic:/java/bin

If your JRE location is not correctly specified, an abend
will occur similar to the abend in SAS Note  #012595 . The paths
specified in TKJNI_OPT_LIBPATH are to libraries containing JRE code
used to start a Java Virtual Machine (JVM). The main one is called
libjvm.so, but it uses many others.



2) TKJNI_OPT_LEOPTS
Specifies that XPLink linkage will be used to call JVM.  This entry must
be set as follows:

   set TKJNI_OPT_LEOPTS='XPLINK(ON)' asis

If this entry does not appear an abend can occur similar to the abend
in SAS Note  #012595 .

3) TKJNI_OPT_PROXYPATH
Specifies the location of an external link to the SAS executable that
starts the Java Virtual Machine on z/OS.  The external link is explained
in the ‘Configuration Guide for SAS Foundation for z/OS’.  An example of
a mixed case path specification:

   set TKJNI_OPT_PROXYPATH=/usr/lpp/SAS/bin/jproxy

4) TKJNI_OPT_DISPLAY
This entry is used to establish the location of an X server or X server
pool. This option is used like a DISPLAY environment variable in UNIX
System Services.  It is required when Java is used to produce graphics.
An example of this option: (Contact your network support group if you do
not know what a valid X server or X server pool name is in your shop.
The server name used here is provided only as an example for how to set)

   set TKJNI_OPT_DISPLAY='hires.fyi.sas.com:0'

If this is not a valid X server or X server pool location, the
following error may occur in the SAS Log:

   ERROR: Java class generated an exception.

In addition, the tkjni.err file found in your HFS home directory will
contain a Java error message referring to the ‘X11 window server’.
See the example below.


 Exception in thread "Thread-1" java.lang.InternalError: Can't connect
to
  X11 window server using ':0.0' as the value of the DISPLAY variable.
    at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
    at    at sun.awt.X11GraphicsEnvironment.<clinit>
  (X11GraphicsEnvironment.java:161).null(Unknown Source)
    at java.lang.Class.forName1(Native Method)
    at java.lang.Class.forName(Class.java:173)
    at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment
  (GraphicsEnvironment.java:90)
    at java.awt.Window.init(Window.java:255)
    at java.awt.Window.<init>(Window.java:299)
    at java.awt.Frame.<init>(Frame.java:427)
    at java.awt.Frame.<init>(Frame.java:392)
    at com.sas.graphics.app.GraphSSR.render(Unknown Source)
    at com.sas.graphics.app.GraphSSR.main(Unknown Source)



Note: Also refer to SAS Note  #012598  for information on incorrect
JREOPTIONS= specifications.

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