[java] Suppress removal warnings for finalize()

The "deprecation" warning has been changed to a "removal" warning
with newer JDK versions.  This needs to be addressed, but meanwhile
it makes running the testsuite unusably noisy so suppressing it
seems more helpful than not.

Closes: #2556

CHANGES.current

@@ -7,6 +7,12 @@ the issue number to the end of the URL: https://github.com/swig/swig/issues/
 Version 4.2.0 (in progress)
 ===========================
 
+2023-05-12: olly
+	    [Java] #2556 Suppress Java removal warnings on finalize method.
+	    SWIG will need to stop relying on finalize methods, but we know
+	    that and meanwhile these warnings make the testsuite output very
+	    noisy.
+
 2023-05-11: olly
 	    #302 #2079 #2474 Parse storage class more flexibly.
 

Examples/test-suite/java_director.i

@@ -7,7 +7,7 @@
 %module(directors="1") java_director
 
 %typemap(javafinalize) SWIGTYPE %{
-  @SuppressWarnings("deprecation")
+  @SuppressWarnings({"deprecation", "removal"})
   protected void finalize() {
 //    System.out.println("Finalizing " + this);
     delete();

Examples/test-suite/java_throws.i

@@ -183,7 +183,7 @@ try {
 
 // Need to handle the checked exception in NoExceptTest.delete()
 %typemap(javafinalize) SWIGTYPE %{
-  @SuppressWarnings("deprecation")
+  @SuppressWarnings({"deprecation", "removal"})
   protected void finalize() {
     try {
       delete();

Lib/java/java.swg

@@ -1304,7 +1304,7 @@ SWIG_JAVABODY_PROXY(protected, protected, SWIGTYPE)
 SWIG_JAVABODY_TYPEWRAPPER(protected, protected, protected, SWIGTYPE)
 
 %typemap(javafinalize) SWIGTYPE %{
-  @SuppressWarnings("deprecation")
+  @SuppressWarnings({"deprecation", "removal"})
   protected void finalize() {
     delete();
   }