Remove Java support

This patch removes the Java support from gdb.  gcj has not seen much
development or use for years now, and was recently removed from GCC.
This patch changes gdb to follow; in the unlikely event that there are
still users using gcj, they can continue to use an older gdb to debug.
Or, they can debug in C++ mode.

Built and regtested on x86-64 Fedora 24.

2016-10-06  Tom Tromey  <tom@tromey.com>

	* MAINTAINERS: Remove Java test maintainer.
	* varobj.h (java_varobj_ops): Don't declare.
	* valprint.h (struct value_print_options)
	<pascal_static_field_print>: Update comment.
	* utils.c (producer_is_gcc): Remove java reference.
	* symtab.h (struct general_symbol_info): Remove java references.
	(SYMBOL_SEARCH_NAME): Likewise.
	* objfiles.c (allocate_objfile): Update comment.
	* linespec.c (find_linespec_symbols): Remove java references.
	* gnu-v3-abi.c (gnuv3_rtti_type, gnuv3_baseclass_offset): Remove
	java references.
	* gdbtypes.h (struct cplus_struct_type) <is_java>: Remove.
	(TYPE_CPLUS_REALLY_JAVA): Remove.
	* c-varobj.c (enum vsections): Update comment.
	* symtab.c (symbol_set_language, symbol_set_names)
	(symbol_natural_name, symbol_demangled_name)
	(demangle_for_lookup, symbol_matches_domain)
	(default_make_symbol_completion_list_break_on_1): Remove java
	references.
	(JAVA_PREFIX, JAVA_PREFIX_LEN): Remove.
	* psymtab.c (match_partial_symbol, psymtab_search_name)
	(lookup_partial_symbol): Remove java references.
	* dwarf2read.c (find_slot_in_mapped_hash): Remove java references.
	(add_partial_symbol, dwarf2_compute_name, dwarf2_physname)
	(dwarf2_add_member_fn, is_vtable_name, read_structure_type)
	(process_structure_scope, read_subroutine_type)
	(read_subrange_type, load_partial_dies)
	(new_symbol_full, determine_prefix, typename_concat)
	(dwarf2_name): Remove java references.
	(set_cu_language): Treat Java as C++.
	* c-typeprint.c (c_type_print_args): Remove java reference.
	* defs.h (enum language) <language_java>: Remove.
	* Makefile.in (SFILES, HFILES_NO_SRCDIR, COMMON_OBS, YYFILES)
	(YYOBJ, local-maintainer-clean): Don't mention java files.
	* jv-exp.y, jv-lang.c, jv-lang.h, jv-typeprint.c, jv-valprint.c,
	jv-varobj.c: Remove.

2016-10-06  Tom Tromey  <tom@tromey.com>

	* guile.texi (Types In Guile): Remove Java mentions.
	* python.texi (Types In Python): Remove Java mentions.
	* gdb.texinfo (Address Locations, Supported Languages)
	(Index Section Format): Remove Java mentions.

2016-10-06  Tom Tromey  <tom@tromey.com>

	* gdb.compile/compile.exp: Change java tests to rust.
	* gdb.base/setshow.exp: Change java tests to rust.
	* gdb.base/default.exp: Remove java from language list.
	* README (Examples): Update language example.
	* gdb.python/py-lookup-type.exp (test_lookup_type): Remove java
	test.
	* lib/gdb.exp (skip_java_tests): Remove.
	* lib/java.exp: Remove.
	* gdb.java: Remove.

2 files changed, 0 insertions, 129 deletions

diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp
index 1230e77..ab661ce 100644
--- a/gdb/testsuite/lib/gdb.exp
+++ b/gdb/testsuite/lib/gdb.exp
@@ -1722,12 +1722,6 @@ proc skip_go_tests {} {
     return 0
 }
 
-# Return a 1 if I don't even want to try to test java.
-
-proc skip_java_tests {} {
-    return 0
-}
-
 # Return a 1 if I don't even want to try to test D.
 
 proc skip_d_tests {} {
diff --git a/gdb/testsuite/lib/java.exp b/gdb/testsuite/lib/java.exp
deleted file mode 100644
index 5ddc97b..0000000
--- a/gdb/testsuite/lib/java.exp
+++ /dev/null
@@ -1,123 +0,0 @@
-# This test code is part of GDB, the GNU debugger.
-
-# Copyright 1998-2016 Free Software Foundation, Inc.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-load_lib "libgloss.exp"
-
-# GCJ_UNDER_TEST is the compiler under test.
-
-global tmpdir
-
-if ![info exists tmpdir] {
-    set tmpdir "/tmp"
-}
-
-set java_initialized 0
-
-#
-# Build the status wrapper library as needed.
-#
-proc java_init { args } {
-    global wrapper_file
-    global wrap_compile_flags
-    global java_initialized
-    global GCJ_UNDER_TEST
-    global TOOL_EXECUTABLE
-    global env
-
-    if { $java_initialized == 1 } { return; }
-
-    if ![info exists GCJ_UNDER_TEST] {
-	if [info exists TOOL_EXECUTABLE] {
-	    set GCJ_UNDER_TEST $TOOL_EXECUTABLE
-	} else {
-	    if { [info exists env(GCJ)] && $env(GCJ) != "" } {
-		set GCJ_UNDER_TEST $env(GCJ)
-	    } else {
-		global tool_root_dir
-		global target_alias
-		
-		if ![is_remote host] {
-		    set file [lookfor_file $tool_root_dir gcj]
-		    if { $file == "" } {
-			set file [lookfor_file $tool_root_dir gcc/gcj]
-		    }
-		    if { $file != "" } {
-			set CC "$file -B[file dirname $file]/ --specs=$tool_root_dir/$target_alias/libjava/libgcj-test.spec"
-		    } else {
-			set CC [transform gcj]
-		    }
-		} else {
-		    set CC [transform gcj]
-		}
-		set GCJ_UNDER_TEST $CC
-	    }
-	}
-    }
-
-    set wrapper_file ""
-    set wrap_compile_flags ""
-    if [target_info exists needs_status_wrapper] {
-	set result [build_wrapper "testglue.o"]
-	if { $result != "" } {
-	    set wrapper_file [lindex $result 0]
-	    set wrap_compile_flags [lindex $result 1]
-	} else {
-	    warning "Status wrapper failed to build."
-	}
-    }
-
-    set java_initialized 1
-}
-
-#
-# Run the test specified by srcfile and resultfile. compile_args and
-# exec_args are options telling this proc how to work.
-#
-proc compile_java_from_source { srcfile binfile compile_args } {
-    global GCJ_UNDER_TEST
-    global java_initialized
-
-    if { $java_initialized != 1 } { java_init }
-
-    set args [list "compiler=$GCJ_UNDER_TEST"]
-    lappend args "additional_flags=--main=[file rootname [file tail $srcfile]]"
-    if { $compile_args != "" } {
-	lappend args "additional_flags=$compile_args"
-    }
-
-    set result [target_compile $srcfile ${binfile} executable $args]
-    gdb_compile_test $srcfile $result
-    return $result
-}
-
-# Auxiliary function to set the language to java.
-# The result is 1 (true) for success, 0 (false) for failure.
-
-proc set_lang_java {} {
-    if [gdb_test_no_output "set language java"] {
-	return 0
-    }
-    if [gdb_test "show language" ".* source language is \"java\"." \
-	   "set language to \"java\""] {
-	return 0
-    }
-    return 1
-}
-
-# Local Variables:
-# tcl-indent-level:4
-# End: