NonStop Server for Java 5.1 Programmer's Reference
The customer Makefile no longer exists in the NonStop Server for Java 4 , 5 and 5.1 on TNS/E
because DLL support precludes the need to bind user native code into the java executable.
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The _RLD_LIB_PATH environment variable, used only on the TNS/E platform, specifies the
library path for user DLLs. For further information, see _RLD_LIB_PATH (TNS/E Only).
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The invocation API uses the JVM as a DLL; therefore, if you use this API, you do not need to
statically link Java into your programs.
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Makefile to Link Native Libraries
The customer Makefile no longer exists for NonStop Server for Java 4 , 5 and 5.1 on TNS/E because
DLL support precludes the need to bind user native code into the java executable. For information about
migrating native libraries, see Dynamic Link Libraries (DLLs).
Compiling C++ Native Code with the
-Wversion3 Option
For TNS/E, you can use C++ code compiled using either a dialect of version 2 or version 3 for user
DLLs because the NonStop Server for Java 4 , 5 and 5.1 on TNS/E is built with a C++ version neutral
flag (the -set CPlusPlusDialect neutral option for the linker).
If you are migrating NonStop Server for Java applications based on JDK 1.3.x or earlier, you might need
to change your source code. Whether your native code needs source-code changes depends on whether
the code uses C++ features that have changed in version 3. To identify needed source-code changes, run
a migration check on your source code on TNS/R by invoking the version 2 compiler and using the
pragma MIGRATION_CHECK. Running this migration check causes the compiler to issue a warning
when a class or member function is present that has changed or become obsolete for version 3. See the
C/C++ Programmers Guide for more information about this pragma and the warnings it can produce.
Note that the VERSION3 directive specifies the use of the Standard C++ Library ISO/IEC version 3 and
the C++ Standard headers. VERSION3 enforces the ISO/IEC IS 14882:1998 standard for C++. The ISO
C++ standard is identical to the ANSI C++ standard.
For invocation API users, you build your own executable and link that executable against the JVM DLL.
For a demo, see the invocation API demo provided by NonStop Server for Java 5.1 in
install_dir/demo/invocation_api.
For more information, see Linker and Compiler Options.