At the path:C:\app\USER_NAME\product\11.2.0\client_1\sqldeveloper\sqldeveloper\bin, there a file 'sqldeveloper.conf'  (The path of setup oracle_11g client),

open and add a row like this(the red row):

IncludeConfFile ../../ide/bin/ide.conf

AddVMOption  -Dapple.laf.useScreenMenuBar=true
AddVMOption  -Dcom.apple.mrj.application.apple.menu.about.name="SQL_Developer"
AddVMOption  -Dcom.apple.mrj.application.growbox.intrudes=false
AddVMOption  -Dcom.apple.macos.smallTabs=true
AddVMOption  -Doracle.ide.util.AddinPolicyUtils.OVERRIDE_FLAG=true

AddVMOption -Dsun.java2d.ddoffscreen=false

AddVMOption -Dwindows.shell.font.languages=

AddVMOption  -XX:MaxPermSize=128M

IncludeConfFile  sqldeveloper-nondebug.conf

SetJavaHome C:\app\USER_NAME\product\11.2.0\client_1\jdk

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