Josm core will not completely compile, and crashes at "Run"

[gpermant]

What steps will reproduce the problem?

1. Downloaded (updated) newest stat of JOSM core from repository
2. Completely build it
3. Start JOSM from class org.openstreetmap.josm.gui.MainApplication

What is the expected result? Errorless build of Josm, Josm should run.

What happens instead?

2. Errors in compilation in file org.openstreetmap.josm.gui.mappaint.mapcss.MapCSSStyleSource
3. after successfull connection to ​http://api.openstreetmap.org/api, Josm program fails due to compilation error

Please provide any additional information below. Attach a screenshot if
possible.

Build-Date: 2011-11-16 14:21:57
Revision: 4596
Is-Local-Build: true

Identification: JOSM/1.5 (4596 SVN de)
Memory Usage: 59 MB / 865 MB (38 MB allocated, but free)
Java version: 1.6.0_27, Sun Microsystems Inc., Java HotSpot(TM) 64-Bit Server VM
Operating system: Windows 7

Plugin: openstreetbugs
Plugin: turnrestrictions

java.lang.Error: Unresolved compilation problems: 
	The import org.openstreetmap.josm.gui.mappaint.mapcss.parsergen cannot be resolved
	The import org.openstreetmap.josm.gui.mappaint.mapcss.parsergen cannot be resolved
	The import org.openstreetmap.josm.gui.mappaint.mapcss.parsergen cannot be resolved
	MapCSSParser cannot be resolved to a type
	MapCSSParser cannot be resolved to a type
	TokenMgrError cannot be resolved to a type
	ParseException cannot be resolved to a type
	The method logError(Throwable) in the type StyleSource is not applicable for the arguments (ParseException)
	ParseException cannot be resolved to a type

	at org.openstreetmap.josm.gui.mappaint.mapcss.MapCSSStyleSource.<init>(MapCSSStyleSource.java:22)
	at org.openstreetmap.josm.gui.mappaint.MapPaintStyles.fromSourceEntry(MapPaintStyles.java:174)
	at org.openstreetmap.josm.gui.mappaint.MapPaintStyles.readFromPreferences(MapPaintStyles.java:151)
	at org.openstreetmap.josm.gui.preferences.MapPaintPreference.initialize(MapPaintPreference.java:160)
	at org.openstreetmap.josm.Main.<init>(Main.java:251)
	at org.openstreetmap.josm.gui.MainApplication.<init>(MainApplication.java:60)
	at org.openstreetmap.josm.gui.MainAppli

[gpermant]

Eclipse screenshot with compilation errors and crash dump

[gpermant]

Java Build path including javacc.jar from core/test

[bastiK]

Either follow the instructions on ​http://josm.openstreetmap.de/wiki/InstallNotes or compile it one time with "ant" to generate the missing files.

[gpermant]

Replying to bastiK:

Either follow the instructions on ​http://josm.openstreetmap.de/wiki/InstallNotes or compile it one time with "ant" to generate the missing files.

Dear bastiK,
thanks for this hint. I was not aware that the JOSM project uses the javaCC Compiler generator, and not familiar with the appropriate plugin needed. The instructions in the InstallNotes for Eclipse worked just fine. I had indeed to move the generated files into a newly created parsergen folder/package. Now JOSM compiles and runs perfectly.

[Larifari77]

I also had to move the generated java files to the subfolder parsergen manually. Should/can I add this step to the install notes on ​http://josm.openstreetmap.de/wiki/InstallNotes#Usingeclipse ?

[skyper]

Replying to Larifari77:

I also had to move the generated java files to the subfolder parsergen manually. Should/can I add this step to the install notes on ​http://josm.openstreetmap.de/wiki/InstallNotes#Usingeclipse ?

Sure, you are talking about a wiki. Help is always welcome !