Primary change is HDFFV-11212 - new refs and JNI (#372)

* OESS-98 convert plugin option to FetchContent, add tests

* Fixes for pkcfg files because of plugin option

* OESS-98 fix tools test for plugins

* Keep doxygen comments under 100 chars long - format hint

* Whitespace

* HDFFV-11144 - Reclassify CMake messages

* HDFFV-11099/11100 added help text

* Reworked switch statement to compare string instead

* Fix typo

* Update CDash mode

* Correct name of threadsafe

* Correct option name

* Undo accidental commit

* Note LLVM 10 to 11 format default changes

* Update format plugin

* Undo clang-format version 11 changes

* One more correction

* Update supported platforms

* Revert whitespace changes

* Correct whitespace

* Changes from PR#3

* HDFFV-11213 added option to control gcc10 warnings diagnostics

* HDFFV-11212 Use the new references correctly in JNI utility and tests

* format source

* Fix typo

* Add new test file

* HDFFV-11212 - update test and remove unused arg

* Minor non-space formatting changes

* Use H5I_INVALID_ID instead of "-1"

* source formatting

* add missing testfile, update jni function

* Undo commit of debug code

* remove mislocated file

* Fix h5repack test for handling of fapls and id close

* Update h5diff test files usage text

* HDFFV-11212 add new ref tests for JNI export dataset

* src format update

* Remove blank line typo

* src format typo

* long double requires %Lg

* Another long double foramt specifer S.B. %Lg

* issue with t128bit test

* Windows issue with h5dump and type.

* Fix review issues

* refactor function nesting and fix error checks

* format fixes

* Remove untested functions and javadoc quiet comments

* Restore TRY block.

* Change string append errors to memory exception

* revert to H5_JNI_FATAL_ERROR - support functions need work

* Add assertion error for h5util functions

* remove duplicate function

* format fix

* Revert HD function error handling

* Update copyright comments

1 files changed, 10 insertions, 10 deletions

diff --git a/java/test/TestH5S.java b/java/test/TestH5S.java
index 03943a4..b09ff6f 100644
--- a/java/test/TestH5S.java
+++ b/java/test/TestH5S.java
@@ -30,7 +30,7 @@ import org.junit.rules.TestName;
 
 public class TestH5S {
     @Rule public TestName testname = new TestName();
-    long H5sid = -1;
+    long H5sid = HDF5Constants.H5I_INVALID_HID;
     int H5rank = 2;
     long H5dims[] = {5, 5};
     long H5maxdims[] = {10, 10};
@@ -181,7 +181,7 @@ public class TestH5S {
 
     @Test
     public void testH5Scopy() {
-        long sid = -1;
+        long sid = HDF5Constants.H5I_INVALID_HID;
         int read_rank = -1;
 
         try {
@@ -201,7 +201,7 @@ public class TestH5S {
 
     @Test
     public void testH5Sextent_copy() {
-        long sid = -1;
+        long sid = HDF5Constants.H5I_INVALID_HID;
         int class_type = -1;
 
         try {
@@ -222,7 +222,7 @@ public class TestH5S {
 
     @Test
     public void testH5Sextent_equal() {
-        long sid = -1;
+        long sid = HDF5Constants.H5I_INVALID_HID;
         boolean result = false;
 
         try {
@@ -252,8 +252,8 @@ public class TestH5S {
 
     @Test
     public void testH5Sencode_decode_null_dataspace() {
-        long sid = -1;
-        long decoded_sid = -1;
+        long sid = HDF5Constants.H5I_INVALID_HID;
+        long decoded_sid = HDF5Constants.H5I_INVALID_HID;
         byte[] null_sbuf = null;
         boolean result = false;
 
@@ -299,8 +299,8 @@ public class TestH5S {
 
     @Test
     public void testH5Sencode_decode_scalar_dataspace() {
-        long sid = -1;
-        long decoded_sid = -1;
+        long sid = HDF5Constants.H5I_INVALID_HID;
+        long decoded_sid = HDF5Constants.H5I_INVALID_HID;
         byte[] scalar_sbuf = null;
         boolean result = false;
         int iresult = -1;
@@ -470,7 +470,7 @@ public class TestH5S {
 
     @Test
     public void testH5Sget_select_hyper() {
-        long space1 = -1;
+        long space1 = HDF5Constants.H5I_INVALID_HID;
         long start[] = {0,0};
         long stride[] = {1,1};
         long count[] = {1,1};
@@ -508,7 +508,7 @@ public class TestH5S {
 
     @Test
     public void testH5Sget_select_valid() {
-        long space1 = -1;
+        long space1 = HDF5Constants.H5I_INVALID_HID;
         long start[] = {1,0};
         long stride[] = {1,1};
         long count[] = {2,3};