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kobo / groovyserv

Groovy's startup acceralator.
http://kobo.github.io/groovyserv/
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using Swing application don't work(java.lang.ThreadDeath throws) #8

Closed uehaj closed 8 years ago

uehaj commented 14 years ago

http://groups.google.com/group/groovyserv/browse_thread/thread/cf629f359c0853a6

uehaj commented 14 years ago

This problem come from

poses System.getSecurityManager().checkExit(0).

For grovyserver, call of exit() can be detected by only SecurityManager#checkExit(0). In other words, groovyserv detects only call of SecurityManager.checkExit(), not call of System.exit() itself.

tihs is serious problem.

possible solutions are:

AST trnsfornation(for example change EXIT_ON_CLOSE to DISPOSE_ON_CLOSE) is useless because this is not only groovy problem. Invoked Java class might have called setDefaultCloseOperation().

uehaj commented 14 years ago

another solution is:

javax.swing.JFrame.metaClass.setDefaultCloseOperation = {}

you can skip checExit easily. but it has the same problem with AST transformation.

nobeans commented 8 years ago

From http://d.hatena.ne.jp/nemo_kaz/20080730

import groovy.swing.SwingBuilder
import java.awt.Color
import java.awt.BorderLayout as BL
import javax.swing.WindowConstants as WC
import javax.swing.BorderFactory as BF
import javax.swing.JOptionPane
swing = new SwingBuilder()
paint = swing.action(
    name: 'Run',
    closure: this.&paintGraph,
    mnemonic: 'R',
    accelerator: 'ctrl R'
)
about = swing.action(
    name: 'About',
    closure: this.&showAbout,
    mnemonic: 'A',
    accelerator: 'F1'
)
frame = swing.frame(title:'2次元ランダムウォーク',
location:[100,100], size:[300,300],
defaultCloseOperation:WC.EXIT_ON_CLOSE) {
    menuBar (){
        menu(mnemonic:'A','Action'){
        menuItem(action:paint)
        }
        glue()
        menu(mnemonic:'H','Help'){
            menuItem(action:about)
        }
    }
    panel (border:BF.createEmptyBorder(6,6,6,6)) {
        borderLayout()

        vbox(constraints: BL.CENTER,border:BF.createTitledBorder('Runボタンを押すたびに100回動きます')) {
            panel(id:'canvas')
        }

        hbox (constraints: BL.SOUTH){
            hstrut(width:10)
            button(action:paint)
        }
    }
}

frame.show()

def labeledSpinner(label, value){
    swing.label(label)
    swing.hstrut()
    swing.spinner(id:label, stateChanged:this.&paintGraph,
    model:swing.spinnerNumberModel(value:value))
}
    gfx = swing.canvas.graphics
    gfx.color = new Color(255, 255, 150)
    gfx.color = Color.red
    xpos = 100
    ypos = 100
def paintGraph(event) {

    int width = swing.canvas.size.width
    int height = swing.canvas.size.height

    1.upto(100) {
        xdir = Math.random()
        ydir = Math.random()
        if (xdir <0.3333 &&  xpos >5)         { xpos-=5 }
        if (xdir >0.6666 && (xpos < width-5)) { xpos+=5 }
        if (ydir <0.3333 &&  ypos >5)         { ypos-=5 }
        if (ydir >0.6666 && (ypos <height-5)) { ypos+=5 }
        gfx.fillRect(xpos,ypos,4,4)
    }
}
void showAbout(event) {
    JOptionPane.showMessageDialog(frame,
    '''2次元ランダムウォーク
赤い四角がランダムに歩きます。''')
}

Using v1.0.0:

$ groovyclient randomWalk.groovy
Caught: java.lang.RuntimeException: Failed to create component for 'frame' reason: java.awt.HeadlessException
java.lang.RuntimeException: Failed to create component for 'frame' reason: java.awt.HeadlessException
        at randomWalk.run(randomWalk.groovy:21)
        at groovyx.groovyserv.GroovyMain2.processOnce(GroovyMain2.java:609)
        at groovyx.groovyserv.GroovyMain2.run(GroovyMain2.java:391)
        at groovyx.groovyserv.GroovyMain2.process(GroovyMain2.java:377)
        at groovyx.groovyserv.GroovyMain2.processArgs(GroovyMain2.java:130)
        at groovyx.groovyserv.GroovyInvokeHandler.invokeGroovy(GroovyInvokeHandler.groovy:133)
        at groovyx.groovyserv.GroovyInvokeHandler.run(GroovyInvokeHandler.groovy:61)
Caused by: java.awt.HeadlessException
        ... 7 more
nobeans commented 8 years ago

src/main/go/server/server.go

                // -Djava.awt.headless=true: without this, annoying to switch an active process to it when new process is created as daemon
-               "-Djava.awt.headless=true " +

This causes java.awt.HeadlessException.

However, the following error occurs even though the option is disabled.

....
2016/03/15 15:05:11,125 [DEBUG] (java.lang.ThreadGroup[name=system,maxpri=10]) (ClientConnection:108) Sent exit status 5                                                   [13/356]
2016/03/15 15:05:11,132 [DEBUG] (java.lang.ThreadGroup[name=system,maxpri=10]) (ClientConnection:156) PipedOutputStream is closed
2016/03/15 15:05:11,139 [DEBUG] (java.lang.ThreadGroup[name=system,maxpri=10]) (ClientConnection:126) PipedInputStream is closed
2016/03/15 15:05:11,145 [DEBUG] (java.lang.ThreadGroup[name=system,maxpri=10]) (ClientConnection:133) Socket is closed
2016/03/15 15:05:11,151 [DEBUG] (java.lang.ThreadGroup[name=system,maxpri=10]) (RequestWorker:170) Closed safely: 5
2016/03/15 15:05:11,157 [DEBUG] (java.lang.ThreadGroup[name=system,maxpri=10]) (RequestWorker:176) Terminated
2016/03/15 15:05:11,158 [DEBUG] (GServThreadGroup:62612:1) (GroovyInvokeHandler:187) Found 0 sub thread(s): []
2016/03/15 15:05:11,163 [DEBUG] (java.lang.ThreadGroup[name=system,maxpri=10]) (RequestWorker:176) Terminated
2016/03/15 15:05:11,166 [DEBUG] (GServThreadGroup:62612:1) (EnvironmentVariables:87) putenv(PWD, /tmp)
2016/03/15 15:05:11,174 [DEBUG] (GServThreadGroup:62612:1) (GroovyInvokeHandler:85) Thread is dead
2016/03/15 15:05:11,180 [DEBUG] (GServThreadGroup:62612:1) (RequestWorker:131) Handler is dead: GroovyInvokeHandler
2016/03/15 15:05:11,188 [DEBUG] (GServThreadGroup:62612:1) (RequestWorker:195) Exited: 0: System.exit(0) is called
groovyx.groovyserv.SystemExitException: System.exit(0) is called
        at groovyx.groovyserv.NoExitSecurityManager2.checkExit(NoExitSecurityManager2.java:33)
        at javax.swing.JFrame.setDefaultCloseOperation(JFrame.java:398)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
        at groovy.lang.MetaClassImpl.setProperty(MetaClassImpl.java:2702)
        at groovy.lang.MetaClassImpl.setProperty(MetaClassImpl.java:3746)
        at groovy.util.FactoryBuilderSupport.setNodeAttributes(FactoryBuilderSupport.java:1097)
        at groovy.util.FactoryBuilderSupport.handleNodeAttributes(FactoryBuilderSupport.java:979)
        at groovy.util.FactoryBuilderSupport.createNode(FactoryBuilderSupport.java:725)
        at groovy.util.FactoryBuilderSupport.dispatchNodeCall(FactoryBuilderSupport.java:857)
        at groovy.util.FactoryBuilderSupport.doInvokeMethod(FactoryBuilderSupport.java:781)
        at groovy.util.FactoryBuilderSupport.invokeMethod(FactoryBuilderSupport.java:501)
        at randomWalk.run(randomWalk.groovy:21)
        at groovy.lang.GroovyShell.runScriptOrMainOrTestOrRunnable(GroovyShell.java:263)
        at groovy.lang.GroovyShell.run(GroovyShell.java:227)
        at groovy.lang.GroovyShell.run(GroovyShell.java:157)
        at groovyx.groovyserv.GroovyMain2.processOnce(GroovyMain2.java:609)
        at groovyx.groovyserv.GroovyMain2.run(GroovyMain2.java:391)
        at groovyx.groovyserv.GroovyMain2.process(GroovyMain2.java:377)
        at groovyx.groovyserv.GroovyMain2.processArgs(GroovyMain2.java:130)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:325)
        at groovyx.groovyserv.GroovyInvokeHandler.invokeGroovy(GroovyInvokeHandler.groovy:133)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at groovyx.groovyserv.GroovyInvokeHandler.run(GroovyInvokeHandler.groovy:61)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
        at java.lang.Thread.run(Thread.java:745)
        (sanitized)
2016/03/15 15:05:11,200 [DEBUG] (GServThreadGroup:62612:1) (RequestWorker:146) Another handler StreamRequestHandler is canceling by GroovyInvokeHandler
2016/03/15 15:05:11,208 [DEBUG] (GServThreadGroup:62612:1) (ClientConnection:108) Sent exit status 0
....

That's described in https://github.com/kobo/groovyserv/issues/8#issuecomment-347800.

nobeans commented 8 years ago

This issue is difficult. And I don't think that there is many cases which you want to run GUI program with GroovServ. So, I won't fix it for the moment.

nobeans commented 8 years ago

I'll add this as a restriction to documentation.