tdf#131572 Add java 9 module info for libreoffice.jar

Add a java module named "org.libreoffice.uno" for this jar.

This needs to be compiled with Java 9.
But since we want to keep b/c with Java 8,
the rest of the jar has to be compiled with Java 8.

This bumps the *build* requirement to Java 9 while keeping
the *runtime* requirement at Java 8.

The gbuild JavaClassSet class is changed to invoke javac twice,
where the 2nd invocation compiles with --release 9 and a --patch-modules
argument so that it finds the results of the first invocation and also
the javamaker generated files in CustomTargets.

Change-Id: I888f5dbe097cc37136e68db5919939877c981862
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/91105
Tested-by: Jenkins
Reviewed-by: Christian Lohmaier <lohmaier+LibreOffice@googlemail.com>

1 files changed, 8 insertions, 33 deletions

diff --git a/configure.ac b/configure.ac
index 911cf72ed52d..5ba7b47d8963 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2007,7 +2007,7 @@ AC_ARG_WITH(linker-hash-style,
 
 AC_ARG_WITH(jdk-home,
     AS_HELP_STRING([--with-jdk-home=<absolute path to JDK home>],
-        [If you have installed JDK 8 or later on your system please supply the
+        [If you have installed JDK 9 or later on your system please supply the
          path here. Note that this is not the location of the java command but the
          location of the entire distribution.]),
 ,)
@@ -7461,20 +7461,12 @@ if test "$ENABLE_JAVA" != ""; then
                 reg_get_value "$bitness" "HKEY_LOCAL_MACHINE/SOFTWARE/JavaSoft/JDK/$ver/JavaHome"
                 _jdk_home=$regvalue
             fi
-            if test -z "$with_jdk_home"; then
-                for ver in 1.8; do
-                    reg_get_value "$bitness" "HKEY_LOCAL_MACHINE/SOFTWARE/JavaSoft/Java Development Kit/$ver/JavaHome"
-                    if test -n "$regvalue"; then
-                        _jdk_home=$regvalue
-                        break
-                    fi
-                done
-            fi
+
             if test -f "$_jdk_home/lib/jvm.lib" -a -f "$_jdk_home/bin/java.exe"; then
                 with_jdk_home="$_jdk_home"
                 howfound="found automatically"
             else
-                AC_MSG_ERROR([No JDK found, pass the --with-jdk-home option pointing to a $bitness-bit JDK])
+                AC_MSG_ERROR([No JDK found, pass the --with-jdk-home option pointing to a $bitness-bit JDK >= 9])
             fi
         else
             test "$build_os" = "cygwin" && with_jdk_home=`win_short_path_for_make "$with_jdk_home"`
@@ -7556,24 +7548,7 @@ if test "$ENABLE_JAVA" != ""; then
         elif test `$JAVAINTERPRETER -version 2>&1 | $AWK '{ print }' | $GREP -c "BEA"` -gt 0; then
             AC_MSG_ERROR([No valid check available. Please check the block for your desired java in configure.ac])
         elif test `$JAVAINTERPRETER -version 2>&1 | $AWK '{ print }' | $GREP -c "IBM"` -gt 0; then
-            JDK=ibm
-
-            dnl IBM JDK specific tests
-            _jdk=`$JAVAINTERPRETER -version 2>&1 | $AWK -F'"' '{ print \$2 }' | $SED s/[[-A-Za-z]]*//`
-            _jdk_ver=`echo "$_jdk" | $AWK -F. '{ print (($1 * 100) + $2) * 100 + $3;}'`
-
-            if test "$_jdk_ver" -lt 10800; then
-                AC_MSG_ERROR([IBM JDK is too old, you need at least 8])
-            fi
-
-            AC_MSG_RESULT([found (IBM JDK $_jdk)])
-
-            if test "$with_jdk_home" = ""; then
-                AC_MSG_ERROR([In order to successfully build LibreOffice using the IBM JDK,
-you must use the "--with-jdk-home" configure option explicitly])
-            fi
-
-            JAVA_HOME=$with_jdk_home
+            AC_MSG_ERROR([No valid check available. Please check the block for your desired java in configure.ac])
         else
             JDK=sun
 
@@ -7581,10 +7556,10 @@ you must use the "--with-jdk-home" configure option explicitly])
             _jdk=`$JAVAINTERPRETER -version 2>&1 | $AWK -F'"' '{ print \$2 }' | $SED '/^$/d' | $SED s/[[-A-Za-z]]*//`
             _jdk_ver=`echo "$_jdk" | $AWK -F. '{ print (($1 * 100) + $2) * 100 + $3;}'`
 
-            if test "$_jdk_ver" -lt 10800; then
-                AC_MSG_ERROR([JDK is too old, you need at least 8])
+            if test "$_jdk_ver" -lt 10900; then
+                AC_MSG_ERROR([JDK is too old, you need at least 9])
             fi
-            if test "$_jdk_ver" -gt 10800; then
+            if test "$_jdk_ver" -gt 10900; then
                 JAVA_CLASSPATH_NOT_SET=TRUE
             fi
 
@@ -7600,7 +7575,7 @@ you must use the "--with-jdk-home" configure option explicitly])
             JAVAFLAGS=-J-Xmx128M
         fi
     else
-        AC_MSG_ERROR([Java not found. You need at least JDK 8])
+        AC_MSG_ERROR([Java not found. You need at least JDK 9])
     fi
 else
     dnl Java disabled