Java.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Fri, 24 May 2013 17:55:42 +0100
branchbuiltin-class-support
changeset 2629 cedb88626902
parent 2588 58b1e0fd20e7
child 2677 17b4e18678ae
permissions -rw-r--r--
Closing branch.

"
 COPYRIGHT (c) 1996-2011 by Claus Gittinger

 New code and modifications done at SWING Research Group [1]:

 COPYRIGHT (c) 2010-2011 by Jan Vrany, Jan Kurs and Marcel Hlopko
			    SWING Research Group, Czech Technical University in Prague

 This software is furnished under a license and may be used
 only in accordance with the terms of that license and with the
 inclusion of the above copyright notice.   This software may not
 be provided or otherwise made available to, or used by, any
 other person.  No title to or ownership of the software is
 hereby transferred.

 [1] Code written at SWING Research Group contains a signature
     of one of the above copright owners. For exact set of such code,
     see the differences between this version and version stx:libjava
     as of 1.9.2010
"
"{ Package: 'stx:libjava' }"

Object subclass:#Java
	instanceVariableNames:''
	classVariableNames:'Classes UnresolvedClassRefs Release BootBundle ClassPath
		ClassPathBundle SourcePath ClassPathExt ExtensionsPath
		ExtensionsPathPackages CacheDirectory JavaHome InternedStrings
		Java_lang_String Java_lang_Class PrettyPrintStyle
		LastArgumentString Threads ExcludedClassPath FailedToLoadClasses
		SourceCache SourceArchiveCache JavaClassLoaderQuerySignal
		ClassLoaderQuerySignal ThreadsAccess'
	poolDictionaries:'JavaVMData'
	category:'Languages-Java-Support'
!

!Java class methodsFor:'documentation'!

copyright
"
 COPYRIGHT (c) 1996-2011 by Claus Gittinger

 New code and modifications done at SWING Research Group [1]:

 COPYRIGHT (c) 2010-2011 by Jan Vrany, Jan Kurs and Marcel Hlopko
			    SWING Research Group, Czech Technical University in Prague

 This software is furnished under a license and may be used
 only in accordance with the terms of that license and with the
 inclusion of the above copyright notice.   This software may not
 be provided or otherwise made available to, or used by, any
 other person.  No title to or ownership of the software is
 hereby transferred.

 [1] Code written at SWING Research Group contains a signature
     of one of the above copright owners. For exact set of such code,
     see the differences between this version and version stx:libjava
     as of 1.9.2010

"
! !

!Java class methodsFor:'accessing'!

classForName: aString
    "/JavaVM booted ifFalse:[JavaVM boot].

    | cls |

    "HACK, required to load extensions methods"
    cls := JavaClassQuery query: (aString copyReplaceAll:$. with: $/).
    cls isNil ifTrue:[
	cls := JavaVM classForName: aString.
    ].
    ^cls.

    "Modified: / 08-11-2012 / 00:25:56 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

classNamed: aString
    ^JavaVM classNamed: aString.
!

classRegistry

    <resource: #obsolete>

    self breakPoint: #mh.
    self breakPoint: #jv.

    ^ JavaVM classRegistry.

    "Modified: / 21-10-2011 / 11:12:09 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

intern:aJavaString
    |stString internedString|

    "JV@2012-07-07: We MUST UTF8-encode the string as java.lang.String
     can keep both normal String and Unicode16String. Therefore it may
     happen that #intern: gets called once with Java string keeping
     characters in String and then with a String with same value but
     characters in Unicode16String.

     UTF8-encoding ensures that the key is single-byte string
     and thus #intern: will return the same interned string
     (actually it return whichever one comes first).
    "

    stString := (self as_ST_String:aJavaString) utf8Encoded.


    internedString := InternedStrings at:stString ifAbsent:nil.
    internedString isNil ifTrue:[
	InternedStrings at:stString put:aJavaString.
	internedString := aJavaString
    ].
    ^ internedString

    "Modified: / 07-07-2012 / 22:14:19 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

javaExtDirs

    ^Java release javaExtDirs
        , (Array 
                with: ((Smalltalk packageDirectoryForPackageId: 'stx:libjava') / 'java' / 'bin')
                with: ((Smalltalk packageDirectoryForPackageId: 'stx:libjava') / 'java' / 'libs') 
        ).

    "Created: / 31-08-2011 / 22:55:38 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Modified: / 23-01-2013 / 15:26:14 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

java_lang_Class
    Java_lang_Class isNil ifTrue:[
	Java_lang_Class := self at:'java.lang.Class'
    ].
    ^ Java_lang_Class

    "Created: 26.3.1997 / 13:42:59 / cg"
    "Modified: 26.3.1997 / 13:46:24 / cg"
!

java_lang_String
    Java_lang_String isNil ifTrue: [
	Java_lang_String := JavaVM classNamed: 'java/lang/String'.
    ].
    ^ Java_lang_String.

    "Created: / 26-03-1997 / 13:43:17 / cg"
    "Modified: / 21-10-2011 / 13:41:02 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
!

prettyPrintStyle
    ^ PrettyPrintStyle

    "Created: 1.8.1997 / 10:37:57 / cg"
!

release
    Release isNil ifTrue:[
        self initializeRelease
    ].
    ^Release

    "
     Release := nil
    "

    "Created: / 22-11-2010 / 12:38:23 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

release: aJavaRelease

    Release := aJavaRelease.

    "
	Java release: JavaRelease openJDK6.
	Java release: JavaRelease sunJDK6.

    "

    "Created: / 22-11-2010 / 12:38:04 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Modified: / 15-01-2013 / 17:59:27 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

systemPropertyAt:key put:something
    JavaVM systemProperties at:key put:something

    "Created: / 9.1.1999 / 14:49:35 / cg"
! !

!Java class methodsFor:'change & update'!

update: what with: param from: sender

    what == #restarted ifTrue:[
	self reinitialize.
    ]

    "Created: / 14-12-2010 / 21:00:09 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !

!Java class methodsFor:'class initialization'!

boot

    ^JavaVM boot.

    "Created: / 21-02-2012 / 18:10:27 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

initAllClasses
    | system |

    FailedToLoadClasses := nil.
    self initAllStaticFields.
    system := JavaVM classForName:'java.lang.System' definedBy:nil.
    system isInitialized ifFalse: [ self initSystemClass. ].
    self allClassesDo: [:cls | cls isInitialized ifFalse: [ cls classInit ] ]

    "
     Java initAllClasses"
    "Modified: / 27.11.1998 / 00:33:05 / cg"
!

initAllStaticFields
     self allClassesDo:[:cls |
	cls initializeStaticFields
     ]

!

initSystemClass
    | system |

    system := JavaVM classForName:'java.lang.System' definedBy:nil.
    system isNil ifTrue: [
	"/        JavaVM initializeVM.
	"/        system := Java at:'java.lang.System'.
	"/        system isNil ifTrue:[
	self warn: 'JavaVM: no ''' , 'java.lang.System' allBold , ''' class.'.

"/            self error:'no ''java.lang.System'' class'.

	^
"/        ].
	self
    ].
    system classInit.
    (system implements: #'initializeSystemClass()V') ifTrue: [
	system "invokeStatic:" perform: #'initializeSystemClass()V'.
    ].

    "
     Java initSystemClass

     (Java at:'java.lang.System')
	perform:#'getProperty(Ljava/lang/String;)Ljava/lang/String;'
	with:(Java as_String:'java.home')"
    "Modified: / 10.11.1998 / 12:39:58 / cg"
!

initialize
    | flag |

    JavaNativeMethod flushAllCachedNativeMethods.
    InternedStrings := Dictionary new.
    FailedToLoadClasses := nil.
    ClassPathExt := nil.
    ExcludedClassPath := OrderedCollection new.
    SourceCache := CacheDictionary new: 32.
    SourceArchiveCache := CacheDictionary new: 32.

    Threads := IdentityDictionary new.

    ClassPathBundle := JavaClassPathBundle new.
    ClassPath isNil ifTrue:[ClassPath:= OrderedCollection new]. "/ for ad-hoc packages
    SourcePath isNil ifTrue:[SourcePath := OrderedCollection new]."/ for ad-hoc packages

    ThreadsAccess := RecursionLock forMutualExclusion.
    self initializePrettyPrintStyle.
    ObjectMemory addDependent: self.

    "Initialize JITer and Native method optimization"
    (flag := OperatingSystem getEnvironment:'STX_LIBJAVA_ENABLE_JIT') notNil ifTrue:[
        ObjectMemory javaJustInTimeCompilation: (flag = '1') 
    ].
    (flag := OperatingSystem getEnvironment:'STX_LIBJAVA_ENABLE_NATIVE_METHOD_OPTIMIZATION') notNil ifTrue:[
        ObjectMemory javaNativeCodeOptimization: (flag = '1') 
    ].

    "
     Java flushAllJavaResources.
     Java initialize.
     JavaVM initializeVM
     Java classPath inspect"

    "Modified: / 06-11-2001 / 09:24:12 / cg"
    "Created: / 03-10-2010 / 15:54:02 / Jan Kurs <kurs.jan@post.cz>"
    "Modified: / 15-10-2010 / 17:37:20 / Jan Kurs <kurs.jan@post.cz>"
    "Modified: / 09-12-2011 / 13:16:15 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
    "Modified: / 19-02-2013 / 21:04:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

initializePrettyPrintStyle
    PrettyPrintStyle := IdentityDictionary new.
    PrettyPrintStyle  at:#accessAttribute put:(#color -> (Color red:0 green:0 blue:25)).
    PrettyPrintStyle  at:#className       put:(Array with:(#color -> Color black) with:#bold).
    PrettyPrintStyle  at:#methodName      put:(Array with:(#color -> Color black) with:#bold).
    PrettyPrintStyle  at:#code            put:(#color -> Color black).


     "
      Java initializePrettyPrintStyle
     "

    "Created: 1.8.1997 / 11:08:43 / cg"
    "Modified: 1.8.1997 / 11:09:58 / cg"
!

initializeRelease

    Release isNil ifTrue:[
	self reinitializeRelease.
    ].

    "
	Release := nil.
	self initializeRelease.
	Release
    "

    "Created: / 22-11-2010 / 13:41:34 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

reboot

    ^JavaVM reboot.

    "Created: / 21-02-2012 / 18:11:47 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

reinitAllClasses
     self markAllClassesUninitialized.
     self initAllClasses

     "
      Java reinitAllClasses
     "

    "Modified: / 4.1.1998 / 00:34:29 / cg"
!

reinitialize
    FailedToLoadClasses := nil.

    "Kludge"
    JavaMethod reinitialize.
    JavaMethodWithException reinitialize.
    JavaMethodWithHandler reinitialize.
    JavaNativeMethod reinitialize.
    JavaNativeMethod flushAllCachedNativeMethods.


    "
     Java reinitialize
    "

    "Created: / 26-08-1997 / 20:07:00 / cg"
    "Modified: / 27-04-1998 / 14:57:23 / cg"
    "Modified: / 17-08-2012 / 11:58:23 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

reinitializeRelease

    | nm |
    "First, consult STX_LIBJAVA_RELEASE environment variable, if set"
    nm := OperatingSystem getEnvironment:'STX_LIBJAVA_RELEASE'.
    nm isNil ifTrue:[
        "If not defined, ask preferences if preffered release is set"
        nm := UserPreferences current javaReleaseSelector.
    ].
    Release := nm notNil
                ifTrue:[JavaRelease perform: nm asSymbol ifNotUnderstood:[JavaRelease any]]
                ifFalse:[JavaRelease any].



    "
        Release := nil.
        self initializeRelease.
        Release
    "

    "Created: / 26-07-2012 / 23:58:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Modified: / 16-02-2013 / 09:18:20 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

startupJavaSystem
    | javaEventThread  haveEventThread  haveScreenUpdater |
    FailedToLoadClasses := nil.

    "/
    "/ check if already running
    "/

    haveEventThread := true.
    javaEventThread := JavaVM javaEventThread.
    (javaEventThread isNil or: [ javaEventThread isDead ]) ifTrue: [
	haveEventThread := false
    ].
    haveScreenUpdater := false.
    haveEventThread ifTrue: [
	self threadsDo: [
	    :aJavaThread |
	    aJavaThread name = 'JAVA-Screen Updater' ifTrue: [
		aJavaThread isDead ifFalse: [
		    "/ already running
		    haveScreenUpdater := true
		]
	    ]
	].
    ].
    (haveEventThread and: [ haveScreenUpdater ]) ifTrue: [ ^ self ].
    JavaClass orderOfClassInits isNil ifTrue: [
	"/ the very first start ...
	'JAVA [info]: (re)initializing JAVA environment completely ...'
	    infoPrintCR.
	JavaVM initializeVM.
    ] ifFalse: [ JavaVM initializeVMIfNoEventThreadRunning ].
    'JAVA [info]: done JAVA initialization.' infoPrintCR.

    "
     Java startupJavaSystem"

    "Modified: / 24-12-1999 / 01:37:49 / cg"
    "Modified: / 09-12-2011 / 12:50:00 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
!

terminateAllThreads
    | myself  threadsToKill  semaphore |
    Threads isNil ifTrue: [ ^ self ].
    myself := Processor activeProcess.
    threadsToKill := IdentitySet new.
    Threads do: [
	:aJavaThread |
	aJavaThread ~~ myself ifTrue: [
	    (aJavaThread isNil or: [ aJavaThread == 0 ]) ifFalse: [
		(aJavaThread isMemberOf: JavaProcess) ifTrue: [
		    aJavaThread isDead ifFalse: [ threadsToKill add: aJavaThread ]
		]
	    ]
	]
    ].
    threadsToKill size > 0 ifTrue: [
	Logger
	    log: 'Killing ' , threadsToKill size printString , ' java processes'
	    severity: #info
	    facility: #JVM.
	semaphore := Semaphore new: 1 - threadsToKill size.
	semaphore name: 'Java thread killer'.
	threadsToKill do: [
	    :aThread |
	    aThread == JavaVM javaScreenUpdaterThread ifTrue: [ self halt ].
	    aThread == JavaVM javaEventQueueThread ifTrue: [ self halt ].
	    aThread
		addExitAction: [
		    Logger
			log: 'Java thread killed successfully'
			severity: #info
			facility: #JVM.
		    semaphore signal
		].

	    aThread terminate
	].
	semaphore wait.
    ].
    JavaVM releaseAllMonitors.
    Logger
	log: 'No Java threads running at this point'
	severity: #info
	facility: #JVM.

    Threads := nil.

    "
     Java terminateAllThreads"

    "Created: / 26-08-1997 / 19:57:40 / cg"
    "Modified: / 24-12-1999 / 02:34:53 / cg"
    "Modified: / 17-11-2011 / 21:31:14 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
! !

!Java class methodsFor:'debugging'!

dontHaltOnKnownBugs
    Object disableBreakPoint: #knownBugs.

    "Created: / 09-10-2011 / 17:29:17 / m"
!

dumpConfig
    Transcript notNil ifTrue:[
        self dumpConfigOn: Transcript
    ] ifFalse:[
        self dumpConfigOn: Stdout
    ]

    "Created: / 10-12-2011 / 12:54:28 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Modified (format): / 11-02-2013 / 14:18:38 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

dumpConfigKey: key value: value on: stream
    '%-30s : %s' printf: { key . value } on: stream.
    stream cr.

    "Created: / 08-02-2013 / 10:18:02 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

dumpConfigOn: stream
    "Prints current config (java home, initial system properties etc) on a stream."

    | props |

    stream nextPutAll: '== VM configuration =='; cr.
    self dumpConfigKey: 'JIT' value: (ObjectMemory javaJustInTimeCompilation printString) on: stream.
    self dumpConfigKey: 'Native Opt' value: (ObjectMemory javaNativeCodeOptimization printString) on: stream.
    Java release dumpConfigOn: stream.
    props := Dictionary new.
    JavaVM initializeSystemPropertiesInto: props.
    stream nextPutAll: '== Initial system properties =='; cr.
    props keysAndValuesDo:[:key :value|
        self dumpConfigKey: key value: value on: stream.  
    ].

    "
        Java dumpConfigOn: Transcript.
    "

    "Created: / 10-12-2011 / 12:54:48 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Modified: / 08-02-2013 / 10:23:11 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

haltOnKnownBugs
    Object enableBreakPoint: #knownBugs.

    "Created: / 09-10-2011 / 17:29:05 / m"
! !

!Java class methodsFor:'enumerating'!

allClasses

    ^JavaVM classRegistry classes

    "Modified: / 28-01-1998 / 01:42:04 / cg"
    "Modified: / 23-10-2011 / 20:14:49 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

allClassesDo:aBlock

    ^JavaVM classRegistry classesDo: aBlock

    "Modified: / 23-10-2011 / 20:14:44 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !

!Java class methodsFor:'object conversions'!

as_Boolean:aBoolean
    "convert an ST-boolean into a Java Boolean"

    |i|

    i := (Java at:'java.lang.Boolean') new.
    i perform:#'<init>(Z)V' with:(aBoolean ifTrue:[1] ifFalse:[0]).
    ^ i

    "
     Java as_Boolean: true
     Java as_Boolean: false
    "

    "Created: / 26-12-2011 / 20:44:28 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

as_Float:aNumber
    "convert an ST-float into a Java Float"

    |i|

    i := (Java at:'java.lang.Float') new.
    i perform:#'<init>(F)V' with:(aNumber asShortFloat).
    ^ i

    "
     Java as_Float:1
     Java as_Float:3.14159
    "

    "Created: 7.8.1997 / 21:21:13 / cg"
    "Modified: 7.8.1997 / 21:22:05 / cg"
!

as_Hashtable: aDictionary
    "given a smalltalk dictionary, create and return
     a Java hashTable for it"

    | hashTable |

    hashTable := (JavaVM classForName:'java.util.Hashtable' definedBy:nil) new.
    aDictionary
	keysAndValuesDo: [
	    :k :v |
	    | sk  sv  jk  jv |

	    (sk := k) isSymbol ifTrue: [ sk := sk asString ].
	    (sv := v) isSymbol ifTrue: [ sv := sv asString ].
	    jk := self as_Object: sk.
	    jv := self as_Object: sv.
	    hashTable
		perform: #'put(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;'
		with: jk
		with: jv.
	].
    ^ hashTable

    "
     Java as_Hashtable:(Dictionary new
			   at:'hello' put:'Hallo';
			   at:'world' put:'Welt';
			   yourself)"
    "Modified: / 14.1.1998 / 17:02:13 / cg"
!

as_Integer:anInteger
    "convert an ST-integer into a Java Integer"

    |i|

    i := (Java at:'java.lang.Integer') new.
    i perform:#'<init>(I)V' with:anInteger.
    ^ i

    "
     Java as_Integer:1
    "

    "Modified: 7.8.1997 / 21:19:37 / cg"
    "Created: 7.8.1997 / 21:21:13 / cg"
!

as_Object:anObject
    "convert an ST-Object into a Java Object"

    anObject isString ifTrue:[
	^ self as_String:anObject
    ].
    anObject isInteger ifTrue:[
	^ self as_Integer:anObject
    ].

    self halt.

    "
     Java as_Object:'hello world'
    "

    "Created: 7.8.1997 / 21:15:38 / cg"
    "Modified: 7.8.1997 / 21:20:07 / cg"
!

as_ST_String: aJavaString
    "Given a java.lang.String instance, returns a coresponding
     Smalltalk String"

    ^Release as_ST_String: aJavaString

    "Created: / 08-08-1997 / 12:02:55 / cg"
    "Modified: / 04-01-1999 / 23:55:08 / cg"
    "Modified: / 22-03-2011 / 17:21:19 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
    "Modified: / 07-02-2013 / 20:02:50 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

as_String:aString
    "Given a Smalltalk string, returns corresponsing instance of
     java.lang.String"

    ^Release as_String: aString

    "
     Java as_String:'hello world'
    "

    "Created: / 07-08-1997 / 21:15:49 / cg"
    "Modified: / 07-02-2013 / 20:03:05 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

as_URL:aString
    "convert an ST-String into a Java String"

    "hard-coding internas of java.lang.String here is bad ..."

    |u s|

    s := aString.

    "/ kludge for volume
    OperatingSystem isMSDOSlike ifTrue:[
	((s size > 1) and:[(s at:2) == $:]) ifTrue:[
	    s := 'file:' , (s copy at:2 put:$|)
	]
    ].
    u := (self at:'java.net.URL') newCleared.
    u perform:#'<init>(Ljava/lang/String;)V' with:(self as_String:s).
    ^ u

    "
     Java as_URL:'http://www.altavista.com'
     Java as_URL:'file:/foo/bar'
    "

    "Created: / 7.8.1997 / 21:15:49 / cg"
    "Modified: / 25.9.1999 / 22:22:21 / cg"
! !

!Java class methodsFor:'others'!

version_HG

    ^ '$Changeset: <not expanded> $'
! !

!Java class methodsFor:'paths-accessing'!

cacheDirectory

    CacheDirectory ifNil:[
	CacheDirectory := Filename homeDirectory / '.smalltalk' / 'libjava' / 'caches' /
	    (((Smalltalk at:#stx_libjava) svnRepositoryUrlBase copyReplaceAll:$/ with:$_) replaceAll:$: with:$_)
    ].
    ^CacheDirectory

    "Created: / 08-04-2011 / 15:02:18 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Modified: / 08-04-2011 / 16:58:52 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

classPath
    ^ClassPath

    "Created: / 07-02-1997 / 19:23:45 / cg"
    "Modified: / 16-01-2013 / 12:45:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

classPath:aCollectionOfPaths
    ClassPath := aCollectionOfPaths

    "Created: / 07-02-1997 / 19:23:45 / cg"
    "Modified: / 17-09-1998 / 20:44:09 / cg"
    "Modified: / 16-01-2013 / 12:44:54 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

classPathAsString
    ^ (self classPath collect: [ :each | each pathName ]) asStringWith: $:.

    "Created: / 12-12-2012 / 23:55:00 / Marcel Hlopko <marcel.hlopko@fit.cvut.cz>"
!

classPathBundle
    ^ClassPathBundle

    "Created: / 25-01-2013 / 21:49:30 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

effectiveClassPath
    ^ClassPathBundle classPath , self classPath

    "
    Java effectiveClassPath
    "

    "Created: / 22-11-2010 / 13:03:54 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Modified: / 17-01-2011 / 09:44:16 / kursjan <kursjan@fit.cvut.cz>"
    "Modified: / 23-01-2013 / 14:45:11 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

effectiveExtensionsPath
    "Return an effective list of directories that contains
     extensions to Java classes. These extensions are loaded
     by JavaClassReader each time the class is loaded into
     running system"

    ^self effectiveExtensionsPathForRelease: Release

    "
    Java effectiveExtensionsPath
    "

    "Created: / 06-09-2012 / 11:27:48 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

effectiveSourceDirectories
    ^Release sourcePath , ClassPathBundle sourcePath , SourcePath
    "
        Java effectiveSourceDirectories
    "

    "Created: / 30-11-2010 / 11:53:42 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Modified: / 23-01-2013 / 15:22:16 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

excludedClassPath
    ^ ExcludedClassPath

    "Modified: / 7.2.1997 / 19:23:55 / cg"
    "Created: / 27.1.1998 / 21:57:13 / cg"
!

isExcludedFromClassPath:fileName
    |nm|

    nm := fileName asFilename pathName.
    ExcludedClassPath do:[:excludedPath |
	(nm startsWith:excludedPath) ifTrue:[^ true].
    ].
    ^ false

    "Created: / 27.1.1998 / 22:00:40 / cg"
!

javaHome
    ^ JavaHome ifNil:[Release javaHome]

    "Created: / 06-08-1997 / 00:53:19 / cg"
    "Modified: / 22-11-2010 / 12:39:19 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

javaHome:aPath

    <resource: #obsolete>

    self obsoleteMethodWarning: 'javaHome is now controlled by java release'.

    JavaHome := aPath

    "Created: / 06-08-1997 / 00:53:23 / cg"
    "Modified: / 22-11-2010 / 12:40:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

sourcePath
    ^SourcePath

    "Created: / 16-01-1998 / 13:26:55 / cg"
    "Modified: / 16-01-2013 / 12:45:46 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !

!Java class methodsFor:'paths-adding & removing'!

addToClassPath:pathOrCollection
    ^ self addToPath:ClassPath path:pathOrCollection

    "Created: / 01-08-1997 / 21:10:07 / cg"
    "Modified: / 17-09-1998 / 20:43:55 / cg"
    "Modified: / 14-12-2011 / 00:04:43 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

addToPath:cp filesMatching:pattern in:path
    |dir|

    dir := path asFilename.
    dir exists ifFalse:[ ^ self ].
    dir directoryContents do:[:fname |
	(fname matches:pattern) ifTrue:[
	    |p|

	    p := (dir / fname) pathName.
	    (cp includes:p) ifFalse:[
		cp add:p.
		cp == ClassPath ifTrue:[
		    self addToClassPathInRuntime:p.
		].
		FailedToLoadClasses := nil
	    ]
	]
    ].

    "Created: / 14-12-2011 / 00:04:03 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

addToPath:cp path:pathOrCollection
    |path|

    (pathOrCollection isSequenceable and:[pathOrCollection isCharacters not]) ifTrue:[
	pathOrCollection do:[:each |
	    self addToPath:cp path:each
	].
	^ self.
    ].
    path := pathOrCollection asFilename.
    (pathOrCollection asString includes:$*) ifTrue:[
	self
	    addToPath:cp
	    filesMatching:path baseName
	    in:path directoryName.
    ] ifFalse:[
	(ClassPath includes:pathOrCollection asString) ifFalse:[
	    cp add:pathOrCollection asString.
	    cp == ClassPath ifTrue:[
		self addToClassPathInRuntime:pathOrCollection.
	    ].
	    FailedToLoadClasses := nil
	]
    ]

    "Created: / 01-08-1997 / 21:10:07 / cg"
    "Modified: / 17-09-1998 / 20:43:55 / cg"
    "Created: / 14-12-2011 / 00:03:26 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

addToSourcePath:pathOrCollection

    self addToPath: SourcePath path: pathOrCollection

    "Created: / 02-08-1997 / 14:12:31 / cg"
    "Modified: / 14-12-2011 / 00:08:24 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

removeFromClassPath:aPath
    (ClassPath includes:aPath) ifTrue:[
	ClassPath remove:aPath
    ]

    "Modified: 7.2.1997 / 19:23:55 / cg"
    "Created: 1.8.1997 / 21:10:21 / cg"
!

removeFromSourcePath:aPath
    (SourceDirectories includes:aPath) ifTrue:[
	SourceDirectories remove:aPath
    ]

    "Modified: 7.2.1997 / 19:23:55 / cg"
    "Created: 2.8.1997 / 14:13:01 / cg"
! !

!Java class methodsFor:'paths-utils'!

addToClassPathInRuntime: aPath
    | path  file  url  scl |

    "Java might not be loaded/or initialized, in this case
     there is no no need to inform java about new entry in classpath"
    JavaVM booted ifFalse: [ ^ self ].
    scl := JavaVM systemClassLoader.
    scl isNil ifTrue:[ ^self ].
    path := Java as_String: aPath asString.
    file := ((JavaVM at: 'java.io.File') new)
		perform: #'<init>(Ljava/lang/String;)V' with: path;
		yourself.
    url := file perform: #'toURL()Ljava/net/URL;'.
    scl perform: #'addURL(Ljava/net/URL;)V' with: url.

    "Created: / 01-08-1997 / 21:10:07 / cg"
    "Modified: / 17-09-1998 / 20:43:55 / cg"
    "Created: / 07-08-2011 / 14:01:48 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

classPathInRuntime: classPath
    "Sets the classpath in already booted/running Java environment"

    | urls ucp scl |

    JavaVM booted ifFalse: [ ^ self ].

    scl := JavaVM systemClassLoader.
    scl isNil ifTrue:[ ^self ].

    urls := (JavaVM classForName:'java.net.URL' definedBy:nil) javaArrayClass new: classPath size.
    classPath withIndexDo:[:element :index|
        | path file url |
        path := Java as_String: element pathName.
        file := ((JavaVM at: 'java.io.File') new)
                perform: #'<init>(Ljava/lang/String;)V' with: path;
                yourself.
        url := file perform: #'toURL()Ljava/net/URL;'.
        urls at: index put: url
    ].
    ucp := (Java classForName:'sun.misc.URLClassPath') new.
    ucp perform: #'<init>([Ljava/net/URL;)V' with: urls.
    scl instVarNamed: #ucp put: ucp.

    "Created: / 02-08-2012 / 16:04:16 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Modified: / 07-05-2013 / 11:20:59 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

effectiveExtensionsPathForRelease: aRelease

    ^ (ExtensionsPath ? #()) ,
	self extensionsPathFromPackages

    "Created: / 06-09-2012 / 11:27:48 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

extensionsPathFromPackages

    ExtensionsPathPackages isNil ifTrue:[
	ExtensionsPathPackages := OrderedCollection new.
	Smalltalk allProjectIDs do:[:pkg|
	    | dir |

	    dir := Smalltalk packageDirectoryForPackageId: pkg.
	    dir notNil ifTrue:[
		dir := dir asFilename / 'java' / 'extensions'.
		dir exists ifTrue:[
		    ExtensionsPathPackages add: dir
		].
	    ]
	].
    ].
    ^ExtensionsPathPackages.

    "
    Java extensionsPathFromPackages
    "


    "
	Java extensionsPathFromPackages
    "

    "Created: / 06-09-2012 / 11:30:17 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

sourceDirectories:aCollectionOfPaths
    SourceDirectories := aCollectionOfPaths asOrderedCollection

    "
     Java
	sourceDirectories:#(
			    '/phys/ibm3/java/src'
			   )
    "


! !

!Java class methodsFor:'queries'!

smalltalkClassFor:typeRef
self halt.
"/    (typeString startsWith:'[[') ifTrue:[
"/        ^ Array
"/    ].
"/    (typeString startsWith:'[F') ifTrue:[
"/        ^ FloatArray
"/    ].
    self halt.

    "Modified: 7.4.1997 / 13:33:46 / cg"
!

smalltalkDerefType:typeString
    (typeString startsWith:'[') ifTrue:[
	^ typeString copyFrom:2
    ].
    self halt.

    "Modified: 7.4.1997 / 13:13:24 / cg"
! !

!Java class methodsFor:'registering java classes'!

at: aJavaName

    ^JavaVM at: aJavaName.

    "Modified: / 18-07-1998 / 22:55:16 / cg"
    "Modified (format): / 21-10-2011 / 10:40:45 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

at: aJavaName put: aJavaClass

    ^JavaVM at:aJavaName put:aJavaClass.

    "Created: / 17-04-1996 / 23:29:31 / cg"
    "Modified: / 07-08-1997 / 19:15:58 / cg"
    "Modified (format): / 21-10-2011 / 10:39:46 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

flushAllJavaResources
    self flushClasses.
    JavaVM registry flush.
    JavaVM reflection notNil ifTrue:[
	JavaVM reflection flush.
    ].
    InternedStrings := Dictionary new.
    SourceCache := CacheDictionary new: 32.
    SourceArchiveCache := CacheDictionary new: 32.
    ThreadsAccess := RecursionLock forMutualExclusion.
    ClassPathPackages := nil.
    JavaMonitor initialize.
    Smalltalk garbageCollect.
    ObjectMemory
	allObjectsDo: [:someObject |
	    someObject isBehavior ifTrue: [
		someObject isJavaClass ifTrue: [
		    | cp |

		    cp := someObject constantPool.
		    Class flushSubclassInfoFor: someObject.
		    1 to: cp size do:[:i|cp at: i put: nil].
		    someObject setConstantPool: nil.
		    someObject setInterfaces: nil.
		    someObject setMethodDictionary: (MethodDictionary new).
		    Logger
			log: 'flushing ' , someObject fullName
			severity: #info
			facility: 'JVM'.
		]
	    ].
	].
    JavaVM releasehSystemClassLoader.
    JavaVM releasehSmalltalkClassLoader.
    Class flushSubclassInfoFor: JavaObject.
    GroovyEvaluator flushWorkspaceBinding .
    GroovyCompiler  flushGroovyClassLoader.
    JavaClass flushClassesInitOrder.
    JavaVM finalizationLobby notNil ifTrue:[
	JavaVM finalizationLobby stopFinalizationProcess
    ]

    "
     Java flushAllJavaResources"

    "Modified: / 06-11-2001 / 09:49:37 / cg"
    "Modified: / 02-11-2011 / 21:34:13 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
    "Modified: / 09-01-2013 / 17:44:46 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

flushClasses
    UnresolvedClassRefs := nil.
    JavaVM flushClasses.
    Smalltalk keysAndValuesDo:[:name :class |
	class isJavaClass ifTrue:[
	    Smalltalk removeKey: name.
	]
    ].
    Smalltalk removeKey:#'JAVA'.

    Java_lang_String := Java_lang_Class := nil.
    JavaVM releaseAllJavaResources.
    JavaUnresolvedConstant flushPatchLists.
    Debugger == DebugView ifTrue:[Debugger newDebugger].
    ObjectMemory flushCaches.

    "
     Java flushClasses
    "

    "Modified: / 06-11-2001 / 09:47:49 / cg"
    "Modified: / 16-11-2011 / 09:43:13 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
    "Modified: / 04-12-2011 / 11:35:12 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

markAllClassesUninitialized
    self allClassesDo:[:aJavaClass |
	aJavaClass markUninitialized
    ].

    "
     Java markAllClassesUninitialized
    "
!

rememberUnresolved:anUnresolvedClassRef
    ('JAVA: remember unresolved class: ' , anUnresolvedClassRef fullName) infoPrintCR.

    UnresolvedClassRefs isNil ifTrue:[
	UnresolvedClassRefs := Dictionary new.
    ].
    UnresolvedClassRefs
	at:anUnresolvedClassRef fullName
	put:anUnresolvedClassRef

    "Created: / 18.4.1996 / 00:05:31 / cg"
    "Modified: / 19.10.1998 / 20:57:44 / cg"
!

removeClass:aJavaClass
    "/ remove it from myself

    |javaName sym cls p ns|

"/    self breakPoint: #jv.
"/    self breakPoint: #mh.

    javaName := aJavaClass fullName.

    sym := javaName asSymbolIfInterned.
    sym notNil ifTrue:[
        cls := JavaVM classForName: sym definedBy: aJavaClass classLoader.
    ].
    (cls notNil and:[cls == aJavaClass]) ifTrue:[
        self updateClassRefsFrom:aJavaClass to:nil.
    ].
    Smalltalk removeKey:('JAVA::' , javaName) asSymbol.
    Smalltalk removeKey:javaName asSymbol.
    Smalltalk removeKey:((javaName , '') copy replaceAll:$/ with:$.) asSymbol.

    "/ remove myself from the JAVA::-::-:: namespace
    "/ (which exists for convenient smalltalk access only)

    p := aJavaClass nameSpacePath.
    p knownAsSymbol ifTrue:[
        ns := Smalltalk at:p asSymbol.
        (ns notNil and:[ns isNameSpace]) ifTrue:[
            Smalltalk removeKey:(p , '::' , aJavaClass lastName) asSymbol
        ]
    ].

    JavaVM registry unregisterClass: aJavaClass.

    "Modified: / 19-10-1998 / 20:58:49 / cg"
    "Modified: / 17-04-2013 / 21:29:11 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

unresolvedClassRefFor:aClassName
    UnresolvedClassRefs isNil ifTrue:[^ nil].
    ^ UnresolvedClassRefs at:aClassName ifAbsent:nil.

    "Modified: / 19.10.1998 / 20:56:46 / cg"
!

updateClassRefsFrom:oldClass to:newClass
    "update all references to oldClass to now refer to newClass.
     sent, when a class is reloaded"

    newClass notNil ifTrue:[
	"/
	"/ kludge: the new class might have been resolved with the oldClass ...
	"/
	newClass constantPool
	    updateClassRefsFrom:oldClass to:newClass.
    ].

    self allClassesDo:[:aJavaClass |
	aJavaClass updateClassRefsFrom:oldClass to:newClass
    ].

    "Created: 26.3.1997 / 13:49:20 / cg"
    "Modified: 12.8.1997 / 03:04:44 / cg"
! !

!Java class methodsFor:'source management'!

classSource:filename package:package in:dirOrZipFile
    |fn pn zar f |

    fn := dirOrZipFile asFilename.
    pn := dirOrZipFile asString.
    fn isDirectory
	ifTrue:
	    [ package notNil
		ifTrue:[ (f:= fn / package / filename) exists ifTrue:[ ^ f contents asString ]. ].
	    (f := fn / filename) exists ifTrue:[ ^ f contents asString ]. ]
	ifFalse:
	    [ ((pn last == $p and: [fn hasSuffix:'zip']) or:
	      [(pn last == $r and: [fn hasSuffix:'jar'])])
		ifTrue:
		    [ zar := SourceArchiveCache
				at: dirOrZipFile
				ifAbsentPut:[ZipArchive oldFileNamed:fn pathName].
		    zar notNil
			ifTrue:
			    [   package notNil
				ifTrue:[
				    OperatingSystem fileSeparator ~~ $/ ifTrue: [
					f := (package copyReplaceAll: OperatingSystem fileSeparator with: $/) , '/' , filename
				    ] ifFalse:[
					f := package , '/' , filename.
				    ]]
				ifFalse:[ f := filename].
			    (zar findMember: f) ifNotNil:
				[
				    "Kludge because of broken ZipArchive"
				    |  cache |
				    cache := Java cacheDirectory / Release name / 'src'.
				    cache exists ifFalse:[cache recursiveMakeDirectory].
				    (cache / f) exists ifTrue:[^(cache / f) contents asString].
				    OperatingSystem
					executeCommand:('unzip "%1" "%2"' bindWith: fn asAbsoluteFilename asString
							    with: f asString)
					inDirectory: cache asString.
				    (f := cache / f) exists ifTrue:[^f contents asString]
				].
			    zar closeFile.
			    ]]].

    ^ nil

    "
	Java classSource: 'Object.java' package:'java/lang' in:'/home/jv/Projects/JavaX/java-6-openjdk/src'
	Java classSource: 'Object.java' package:'java/lang' in:'/usr/lib/jvm/java-6-openjdk/src.zip'

    "

    "Modified: / 29-03-1998 / 21:46:40 / cg"
    "Created: / 30-11-2010 / 12:32:36 / Jan Vrany <jan.vrany@fit.cvut.cz>"
    "Modified: / 04-12-2012 / 00:43:12 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

classSourceOf:aClass
    |jpackage dirName binary sourceFileName sourceFile loader codeBaseURL protocol codeBaseURLIdx src|

    aClass isNil ifTrue:[
        ^ nil
    ].
    "/ look at the cache"
    SourceCache at: aClass ifPresent: [:src|^src].

    "/ first, look in the directory, where the binary
    "/ was loaded from.

    binary notNil ifTrue:[
        binary := binary asFilename.
        aClass sourceFile notNil ifTrue:[
            sourceFileName := binary directory constructString:(aClass sourceFile).
            sourceFileName asFilename exists ifFalse:[
                sourceFileName := nil.
            ]
        ].
        sourceFileName isNil ifTrue:[
            sourceFileName := binary withSuffix:'java'.
        ].
        sourceFile := sourceFileName asFilename.
    ] ifFalse:[
        "/ maybe it was loaded by a java classLoader ...
        (loader := aClass classLoader) notNil ifTrue:[
            codeBaseURLIdx := loader class instVarOffsetOf:'codeBaseURL'.
            codeBaseURLIdx notNil ifTrue:[
                (codeBaseURL := loader instVarAt:codeBaseURLIdx) notNil ifTrue:[
                    (protocol := codeBaseURL instVarNamed:'protocol') notNil ifTrue:[
                        (Java as_ST_String:protocol) = 'file' ifTrue:[
                            dirName := Java as_ST_String:(codeBaseURL instVarNamed:'file').
                            dirName := dirName asFilename.
                            dirName exists ifTrue:[
                                aClass sourceFile notNil ifTrue:[
                                    sourceFile := sourceFileName := dirName construct:aClass sourceFile.
                                ]
                            ]
                        ]
                    ]
                ]
            ]
        ]
    ].
    sourceFile notNil ifTrue:[
        sourceFile exists ifFalse:[
            binary notNil ifTrue:[
                sourceFileName := binary withSuffix:'jav'.
                sourceFile := sourceFileName asFilename.
                sourceFile exists ifFalse:[
                    sourceFileName := binary withSuffix:'JAV'.
                    sourceFile := sourceFileName asFilename.
                    sourceFile exists ifFalse:[
                        sourceFileName := binary withSuffix:'JAVA'.
                        sourceFile := sourceFileName asFilename.
                    ].
                ].
            ]
        ].
    ].

    "/ special case: there were multiple classes in a single
    "/ source file.

    (binary notNil and:[aClass sourceFile notNil]) ifTrue:[
        binary withoutSuffix baseName ~= aClass sourceFile asFilename withoutSuffix baseName ifTrue:[
            'JAVA: trouble extracting fileName: ' infoPrint.
            binary withoutSuffix baseName print. ' vs. ' infoPrint.
            aClass sourceFile asFilename withoutSuffix baseName infoPrintCR.
        ].
    ].

    "/ if that fails, look in standard places

    (sourceFile isNil or:[sourceFile exists not]) ifTrue:[
        sourceFile := aClass sourceFile.
        sourceFile isNil ifTrue:[
            "Hmm, hmm...just a guess"
            sourceFile := (aClass lastName upTo: $$) , '.java'.
        ].
        jpackage := aClass javaPackageAsDirname.
        self effectiveSourceDirectories do:[:dir|
            src := self classSource: sourceFile package: jpackage in: dir.
            src ifNotNil:[^src]
        ]
    ].

    sourceFile isFilename ifFalse:[^nil].
    ^ (sourceFile contentsOfEntireFile).

    "
        Java classSourceOf: JAVA::java::lang::Object
    "

    "Modified: / 27-01-1999 / 20:40:30 / cg"
    "Modified: / 31-03-2013 / 19:17:17 / Jan Vrany <jan.vrany@fit.cvut.cz>"
!

sourceDirectories
    ^self sourcePath
"/
"/    ^ "for testing only"
"/    "/Release classPath,
"/
"/    {(packagePath / 'java' / 'libjava-projects' / 'Conversion' / 'bin')
"/        pathName.
"/    (packagePath / 'java' / 'libjava-support' / 'bin') pathName}
"/            , ((packagePath / 'java' / 'libs') directoryContentsAsFilenames
"/                    select:[:f | f suffix = 'jar']
"/                    thenCollect:[:f | f pathName])
"/            , (ClassPath ? #()) , cp
"/
    "
	Java classPath
    "

    "Modified: / 16-01-2013 / 12:46:13 / Jan Vrany <jan.vrany@fit.cvut.cz>"
! !

!Java class methodsFor:'starting apps'!

javaProcessForMainOf:aJavaClass
    "ask for a commandLine, create a java process to invoke
     its main and return it. The process is not scheduled for
     execution."

    ^ self javaProcessForMainOf:aJavaClass argumentString:nil

    "Modified: / 30.12.1998 / 20:24:25 / cg"
!

javaProcessForMainOf:aJavaClass argumentString:argStringIn
    "create a java process, ready to invoke the classes main
     method. Returns the process - ready to run but not yet resumed"

    |p argStringArray argString stdInReplacement alreadyAskedForStdin|

    argString := argStringIn.
    argString isNil ifTrue:[
        argString := Dialog
                    request:'argument string:'
                    initialAnswer:LastArgumentString ? ''
                    onCancel:nil.
        argString isNil ifTrue:[^ nil].

        LastArgumentString := argString.
    ].

    JavaVM initializeVMIfNoEventThreadRunning.
    (Java at:'java.lang.System') instVarNamed:'security' put:nil.

    argString isEmpty ifTrue:[
        argStringArray := #()
    ] ifFalse:[
        argStringArray := (argString asCollectionOfWords collect:[:s | Java as_String:s]) asArray.
    ].

    p := JavaProcess
            for:[
                    "/ if the program reads from stdin, let user provide a file
                    "/ for it.
                    JavaVM stdinReplacementFileQuerySignal handle:[:ex |
                        |fn|

                        alreadyAskedForStdin == true ifFalse:[
                            fn := Dialog
                                    requestFileName:'Program reads from Stdin - give inputFile or cancel for EOF'
                                    default:nil
                                    fromDirectory:(FileSelectionBox lastFileSelectionDirectory).
                            fn notNil ifTrue:[
                                stdInReplacement := fn asFilename readStream.
                            ].
                            alreadyAskedForStdin := true.
                        ].
                        ex proceedWith:stdInReplacement
                    ] do:[
                        aJavaClass
                            performStatic:#'main([Ljava/lang/String;)V'
                            with:argStringArray.
                    ]
                ]
            priority:(Processor activePriority - 1).

    p name:(aJavaClass fullName , '::main()').
    p restartable:true.
    ^ p

    "Created: / 15.8.1997 / 04:41:20 / cg"
    "Modified: / 24.12.1999 / 01:50:21 / cg"
! !

!Java class methodsFor:'threads'!

addThread: jThread for: stProcess
    ThreadsAccess
	critical: [
	    self assert: (Threads includesKey: jThread) not.
	    jThread == 0 ifTrue: [self breakPoint:#mh].
	    Threads at: jThread put: stProcess.
	]

    "Created: / 26-08-1997 / 19:53:57 / cg"
    "Created: / 09-12-2011 / 12:47:10 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
!

initializeCurrentThread
    "adds current thread into known threads"

    | thisProcess  jThread |
    thisProcess := Processor activeProcess.
    jThread := JavaVM newThread: thisProcess name.
    jThread instVarNamed: 'tid' put: thisProcess id.
    Java addThread: jThread for: thisProcess.

    "Created: / 09-12-2011 / 12:08:34 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
!

removeThread: jThread for: stProcess
ThreadsAccess
	critical: [
    self assert: (Threads includesKey: jThread).
    Threads removeKey: jThread.]

    "Created: / 26-08-1997 / 19:53:57 / cg"
    "Created: / 09-12-2011 / 12:47:32 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
!

removeThread: jThread ifAbsent: block
    ThreadsAccess
	critical: [

	    Threads removeKey: jThread ifAbsent: block
	]

    "Created: / 26-08-1997 / 19:53:57 / cg"
    "Created: / 09-12-2011 / 12:51:52 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
!

threadForStProcess: stProcess
    ThreadsAccess critical: [ ^Threads keyAtValue: stProcess ].

    "Created: / 26-08-1997 / 19:53:57 / cg"
    "Created: / 09-12-2011 / 12:50:58 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
!

threadForStProcess: stProcess ifAbsent: block
    ThreadsAccess
	critical: [ |result| result := Threads keyAtValue: stProcess ifAbsent: block. result == 0 ifTrue: [self breakPoint:#mh]. ^ result ].

    "Created: / 26-08-1997 / 19:53:57 / cg"
    "Created: / 09-12-2011 / 12:53:11 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
!

threads
    self breakPoint:#mh.
    ^ Threads.

    "Created: / 26-08-1997 / 19:53:57 / cg"
    "Modified: / 09-12-2011 / 12:49:43 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
!

threadsAt: key
    ^Threads at: key.

    "Created: / 26-08-1997 / 19:53:57 / cg"
    "Created: / 09-12-2011 / 12:31:56 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
!

threadsAt: key ifAbsent: block
    ThreadsAccess critical: [ ^ Threads at: key ifAbsent: block ]

    "Created: / 26-08-1997 / 19:53:57 / cg"
    "Created: / 09-12-2011 / 12:49:22 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
!

threadsDo: block
    ThreadsAccess
	    critical: [ Threads do: block]

    "Created: / 26-08-1997 / 19:53:57 / cg"
    "Created: / 09-12-2011 / 12:49:00 / Marcel Hlopko <hlopkmar@fel.cvut.cz>"
! !

!Java class methodsFor:'documentation'!

version
    ^ '$Header: /cvs/stx/stx/libjava/Java.st,v 1.141 2013-04-02 12:03:01 stefan Exp $'
!

version_CVS
    ^ '$Header: /cvs/stx/stx/libjava/Java.st,v 1.141 2013-04-02 12:03:01 stefan Exp $'
!

version_SVN
    ^ 'Id'

! !


Java initialize!