Dbus error after running Eclipse Oxygen

Error when running Eclipse Oxygen (with CDT) on lubuntu 20.04:

GLib-GIO-CRITICAL **: 16:15:43.425: g_dbus_proxy_new: assertion 'G_IS_DBUS_CONNECTION (connection)' failed

Fixed the sympthon by following command (see: here):

sudo apt purge fcitx-module-dbus

Speed up eclipse 爆速になった！

以下の値をeclipse.iniを変更し（増やす）
-Xms1024m
-Xmx1024m

以下のオプションをeclipse.iniに追加したところ起動が爆速になった！ぜひを試しを！
-server
-Xverify:none
-XX:PermSize=256m
-XX:MaxPermSize=256m
-XX:+UseParallelGC

使用マシンLenovo W540

java version "1.8.0_60"
Java(TM) SE Runtime Environment (build 1.8.0_60-b27)
Java HotSpot(TM) 64-Bit Server VM (build 25.60-b23, mixed mode)

以上

Custom color based on Bespin color theme for eclipse

デフォルトのBespinをちょっとだけ変更

>?xml version="1.0" encoding="utf-8"?<
>colorTheme id="199" name="Bespin_K" modified="2011-02-08 23:37:32" author="Russ Shearer"<
    >occurrenceIndication color="#616161" /<
    >findScope color="#191919" /<
    >deletionIndication color="#FF0000" /<
    >singleLineComment color="#1E9AE0" /<
    >multiLineComment color="#1E9AE0" /<
    >commentTaskTag color="#800080" /<
    >javadoc color="#1E9AE0" /<
    >javadocLink color="#814582" /<
    >javadocTag color="#800080" /<
    >javadocKeyword color="#800080" /<
    >class color="#FFFFFF" /<
    >interface color="#87F025" /<
    >method color="#F7C527" /<
    >methodDeclaration color="#F1C438" /<
    >bracket color="#FFAA00" /<
    >number color="#FF3A83" /<
    >string color="#55E439" /<
    >operator color="#FFFFFF" /<
    >keyword color="#FFAA00" /<
    >staticMethod color="#FFFFFF" /<
    >localVariable color="#FFFFFF" /<
    >localVariableDeclaration color="#FFFFFF" /<
    >field color="#357A8F" /<
    >staticField color="#FFFFFF" /<
    >staticFinalField color="#80FF00" /<
    >deprecatedMember color="#FFFFFF" /<
    >enum color="#408000" /<
    >inheritedMethod color="#E3B735" /<
    >abstractMethod color="#F1C436" /<
    >parameterVariable color="#FFFFFF" /<
    >typeArgument color="#FFAA00" /<
    >typeParameter color="#CDB1AD" /<
    >background color="#2A211C" /<
    >currentLine color="#222220" /<
    >foreground color="#F8F8F8" /<
    >lineNumber color="#666666" /<
    >selectionBackground color="#414C3B" /<
    >selectionForeground color="#FFFFFF" /<
>/colorTheme<