Following this instruction, I could run headless Eclipse plugin in side Eclipse IDE.
I've got some error log info, but I guess I could ignore it based on this post - Unable to find feature.xml in directory
Following the instruction in site, I could generate the jar file. After copying the org.eclipse.equinox.launcher.jar, I tried to execute the jar file
java -jar org.eclipse.equinox.launcher_1.2.0.v20110502.jar -application headlessHello_1.0.0.201210101430.jar
I tried
java -cp .:org.eclipse.equinox.launcher_1.2.0.v20110502.jar org.eclipse.core.launcher.Main -application headlessHello_1.0.0.201210101430.jar
to get error message
An error has occurred. See the log file
/Users/users/Desktop/configuration/1349897444823.log
with this log file
!SESSION Wed Oct 10 14:30:44 CDT 2012 ------------------------------------------
!ENTRY org.eclipse.equinox.launcher 4 0 2012-10-10 14:30:44.843
!MESSAGE Exception launching the Eclipse Platform:
!STACK
java.lang.RuntimeException: Could not find framework
at org.eclipse.equinox.launcher.Main.getBootPath(Main.java:978)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:557)
at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
at org.eclipse.equinox.launcher.Main.main(Main.java:1386)
ADDED
From this site, the issue was because I didn't setup %R2_HOME%/plugins
correctly. After the setup, I still get the error.
java.lang.IllegalStateException: Unable to acquire application service. Ensure that the org.eclipse.core.runtime bundle is resolved and started (see config.ini).
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:74)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:344)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:622)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
at org.eclipse.equinox.launcher.Main.main(Main.java:1386)
at org.eclipse.core.launcher.Main.main(Main.java:34)