My experience with Java is less and extrem old.
I use the JabRef-3.0.jar file from your website on Debian unstable.
My netbook is old, too. Because of that it is slow. JabRef is near til unusable because of that.
Is there a way to speed that up?
Maybe can I compile the code and run it native without using the java-byte-code interpreter?
I tried to use GCJ to compile.
$ gcj JabRef-3.7.jar -v
Using built-in specs.
Reading specs from /usr/lib/gcc/i686-linux-gnu/6/libgcj.spec
rename spec startfile to startfileorig
rename spec lib to liborig
COLLECT_GCC=gcj
COLLECT_LTO_WRAPPER=/usr/lib/gcc/i686-linux-gnu/6/lto-wrapper
Target: i686-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 6.2.1-5' --with-bugurl=file:///usr/share/doc/gcc-6/README.Bugs --enable-languages=c,ada,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-6 --program-prefix=i686-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-6-i386/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-6-i386 --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-6-i386 --with-arch-directory=i386 --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc=auto --enable-targets=all --enable-multiarch --with-arch-32=i686 --with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic --enable-checking=release --build=i686-linux-gnu --host=i686-linux-gnu --target=i686-linux-gnu
Thread model: posix
gcc version 6.2.1 20161124 (Debian 6.2.1-5)
COLLECT_GCC_OPTIONS='-v' '-fbootclasspath=./:/usr/share/java/libgcj-6.jar' '-g1' '-specs=libgcj.spec' '-shared-libgcc' '-mtune=generic' '-march=i686'
COLLECT_GCC_OPTIONS='-v' '-fbootclasspath=./:/usr/share/java/libgcj-6.jar' '-g1' '-specs=libgcj.spec' '-shared-libgcc' '-mtune=generic' '-march=i686'
/usr/lib/gcc/i686-linux-gnu/6/jc1 JabRef-3.7.jar -fhash-synchronization -fno-use-divide-subroutine -fuse-boehm-gc -fnon-call-exceptions -fkeep-inline-functions -quiet -dumpbase JabRef-3.7.jar -mtune=generic -march=i686 -auxbase JabRef-3.7 -g1 -version -fbootclasspath=./:/usr/share/java/libgcj-6.jar -faux-classpath /tmp/cc9UzfH2.zip -o /tmp/ccB3QnPq.s
GNU Java (Debian 6.2.1-5) version 6.2.1 20161124 (i686-linux-gnu)
compiled by GNU C version 6.2.1 20161124, GMP version 6.1.1, MPFR version 3.1.5, MPC version 1.0.3, isl version 0.15
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU Java (Debian 6.2.1-5) version 6.2.1 20161124 (i686-linux-gnu)
compiled by GNU C version 6.2.1 20161124, GMP version 6.1.1, MPFR version 3.1.5, MPC version 1.0.3, isl version 0.15
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Class path starts here:
/tmp/cc9UzfH2.zip/ (zip)
./ (system)
/usr/share/java/libgcj-6.jar/ (system) (zip)
In file included from net/sf/jabref/logic/importer/fileformat/mods/AccessConditionDefinition.java:503:0,
from net/sf/jabref/logic/importer/fileformat/mods/AbstractDefinition.java:425,
from net/sf/jabref/logic/importer/fileformat/mods/NameDefinition.java:758,
from net/sf/jabref/logic/importer/fileformat/mods/DateDefinition.java:213,
from net/sf/jabref/logic/importer/fileformat/mods/StringPlusLanguagePlusSupplied.java:106,
from net/sf/jabref/logic/importer/fileformat/mods/ExtentDefinition.java:213,
from net/sf/jabref/logic/importer/fileformat/mods/RecordInfoDefinition.java:290,
from net/sf/jabref/logic/importer/fileformat/mods/ExtensionDefinition.java:142,
from net/sf/jabref/logic/importer/fileformat/mods/ItemIdentifierDefinition.java:65,
from net/sf/jabref/logic/importer/fileformat/mods/EnumerationAndChronologyDefinition.java:104,
from net/sf/jabref/logic/importer/fileformat/mods/FormDefinition.java:96,
from net/sf/jabref/logic/importer/fileformat/mods/CopyInformationDefinition.java:313,
from net/sf/jabref/logic/importer/fileformat/mods/CopyInformationDefinition.java:610,
from net/sf/jabref/logic/importer/fileformat/mods/HoldingSimpleDefinition.java:104,
from net/sf/jabref/logic/importer/fileformat/mods/UrlDefinition.java:217,
from net/sf/jabref/logic/importer/fileformat/mods/StringPlusLanguagePlusAuthority.java:161,
from net/sf/jabref/logic/importer/fileformat/mods/PhysicalLocationDefinition.java:281,
from net/sf/jabref/logic/importer/fileformat/mods/LocationDefinition.java:483,
from net/sf/jabref/logic/importer/fileformat/mods/HierarchicalGeographicDefinition.java:225,
from net/sf/jabref/logic/importer/fileformat/mods/StringPlusLanguage.java:223,
from net/sf/jabref/logic/importer/fileformat/mods/IdentifierDefinition.java:180,
from net/sf/jabref/logic/importer/fileformat/mods/OriginInfoDefinition.java:361,
from net/sf/jabref/logic/importer/fileformat/mods/PartDefinition.java:430,
from net/sf/jabref/logic/importer/fileformat/mods/RelatedItemDefinition.java:545,
from net/sf/jabref/logic/importer/fileformat/mods/ModsDefinition.java:378,
from net/sf/jabref/logic/importer/fileformat/mods/ModsCollectionDefinition.java:104,
from net/sf/jabref/logic/importer/fileformat/mods/package-info.java:223,
from <built-in>:127:
net/sf/jabref/logic/importer/fileformat/mods/AreaDefinition.java:67:0: internal compiler error: Speicherzugriffsfehler