Re: JavaFX program exit without Java JDK installed - Java Discussion Boards

JavaFX program exit without Java JDK installed [SOLVED]

Valentinor25-Aug-18 9:22

25-Aug-18 9:22

Hi,

On my workstation the program I made is running well, but here I have Java JDK installed.
When I was done and tried to run it on a different machine, the program starts, and for a split second the GUI shows then the whole program closes itself. After some testing, I found out that the problem somehow is Java JDK.
If I install Java JDK on the testing machine, the program runs fine, even if I uninstall Java JDK after that, the program still runs, which makes me think it might add additional jars in Java folder. If I uninstall Java, and reinstall only java, the program again won't work unless I install Java JDK too.
Did anyone encountered this problem too, or knows a fix for it? Am I right about JDK actually adding additional jars in Java folder, which remain there even after JDK is uninstalled?

Here is a list of libraries my program uses, I marked them at the end with [] because I'm using multiple classes from them and the list would have been way too long if I was to add all of them:

import com.sun.glass []
import java.awt []
import java.io []
import java.net []
import java.text []
import java.time []
import java.util []
import javafx []

Also, I'm using a DLL file, but from my testing that one isn't the problem, as I said, the JDK is somehow.
Hope I explained the problem well enough, if not, I'll happily answer any other questions.
OS: Windows 10 x64 Pro on both machines.

Re: JavaFX program exit without Java JDK installed

Richard MacCutchan25-Aug-18 1:33

Richard MacCutchan

25-Aug-18 1:33

Any Java application should run on any system that has the correct JRE loaded. Are you sure that the version of the runtime on the test machine is the same as, or later than, the one on the development system?

Re: JavaFX program exit without Java JDK installed

Valentinor25-Aug-18 3:06

Valentinor

25-Aug-18 3:06

Yes, I'm sure, I tried it on a VM and on my laptop, and on both I have to do what I said in the main post.

Re: JavaFX program exit without Java JDK installed

Richard MacCutchan25-Aug-18 3:17

Richard MacCutchan

25-Aug-18 3:17

Well it is anyone's guess what your program is doing wrong. You will need to find a way to gather more information.

Re: JavaFX program exit without Java JDK installed

Valentinor25-Aug-18 3:18

Valentinor

25-Aug-18 3:18

I did a little more testing, and it seems that I need the JDK installed in order for it to load the DLL. That DLL only adds the minimize function to an undecorated stage, when clicked on taskbar.
The GUI shows for a split second because the DLL is loaded just after stage.show().
I'm loading and using it with:

System.load(System.getProperty("user.dir") + "\\Data\\Minimize_x" + windowsVersion + ".dll");
addMinimize(Window.getWindows().get(0).getNativeWindow()); //Native function

Re: JavaFX program exit without Java JDK installed

Richard MacCutchan25-Aug-18 3:28

Richard MacCutchan

25-Aug-18 3:28

I do not have a system available that I can test that. However I have used a similar construct in the past and it worked fine without the JDK. If you are certain that is the problem, and can reproduce it with a small test sample, then you should report it to Oracle.

Re: JavaFX program exit without Java JDK installed

Valentinor25-Aug-18 3:42

Valentinor

25-Aug-18 3:42

As I said, the DLL only adds that function, so I should be able to reproduce it with a simple blank stage.
Thanks.

Re: JavaFX program exit without Java JDK installed

Valentinor25-Aug-18 4:19

Valentinor

25-Aug-18 4:19

I just reproduced of the problem, but this time I even tried JDK 10, rather then 8 which I used in the main app, and has the same problem.
I added this one on drive, with jar and sources in format that can be read online without download.
Link in case you want to see

Re: JavaFX program exit without Java JDK installed

Richard MacCutchan25-Aug-18 5:47

Richard MacCutchan

25-Aug-18 5:47

OK. I have just run your code on my system which has JRE 8 and JDK 8 installed, and it runs fine. I then installed Java JRE 8 on my wife's system and again your code runs fine. So it does not look like it has anything to do with the absence of the JDK. I did notice in your Java code that you check for 32/64 bit and load a different DLL based on that setting; I wonder if that is part of the problem. Have you checked the eroriC.txt file for any error messages?

Re: JavaFX program exit without Java JDK installed

Richard MacCutchan25-Aug-18 4:35

Richard MacCutchan

25-Aug-18 4:35

One thing that might be worth trying in that code is to break it down into its constituent parts. However I cannot find the definition for the getNativeWindow method.

Re: JavaFX program exit without Java JDK installed

Valentinor25-Aug-18 4:55

Valentinor

25-Aug-18 4:55

The thing is, I tried to add the loading of the DLL in a try {} catch(Exception e){} block, and in catch to write in a file the message of that exception, but it doesn't write anything in the file. And I can't try to debug the program in Eclipse, because for that I'll need the JDK installed, and if I have that, then the program will run without a problem.

Re: JavaFX program exit without Java JDK installed

Richard MacCutchan25-Aug-18 6:12

Richard MacCutchan

25-Aug-18 6:12

Sorry, but I cannot reproduce the problem. There must be something else incompatible on the PC where it is failing, but I have no more ideas.

Re: JavaFX program exit without Java JDK installed

Valentinor25-Aug-18 7:24

Valentinor

25-Aug-18 7:24

I managed to find out what the problem was. Using catch Exception wasn't catching the execption, but using what jschell suggested (catch Throwable), I found out that the problem was the DLL files.
With Throwable I was getting dependency exception, so I looked up with "pestudio", and my DLL files, were using debug DLL's that come with Windows SDK not C++ Redistributable.

modified 25-Aug-18 13:31pm.

Re: JavaFX program exit without Java JDK installed

Richard MacCutchan25-Aug-18 8:29

Richard MacCutchan

25-Aug-18 8:29

Strange then that it worked on my alternate system which does not have JDK or C++ debug libraries. Or maybe that was a release version.

Re: JavaFX program exit without Java JDK installed

Valentinor25-Aug-18 8:46

Valentinor

25-Aug-18 8:46

Well, it was even weirder that it was working with JDK when my DLL files needed those debug C++.
And yeah, if you used my DLL files, and not build them using my code, then it shoudn't have worked. Maybe a program that was installed on that system, added them.
In any case, I'm glad I managed to figure it out, it was getting kinda annoying, having it work on a system, and not another. They need to change that option in Visual Studio, after all I used their "Release" mode, but I had to go in project settings too.

Re: JavaFX program exit without Java JDK installed

jschell25-Aug-18 4:50

jschell

25-Aug-18 4:50

The JRE will load JNI without problem.

I strongly suspect that your problem is as follows.
1 - You have inadequate error detection.
2 - You are loading the JNI via a static block. The JNI load fails which causes an exception. That by the way means that the class will also fail to load.

Other possibility is that the JNI code is throwing an exception. JNI code that throws system exceptions will cause the VM to exit.

Because of the exception and perhaps because of the class load failure, your application is getting an uncaught exception which causes the 'main' to exit. That means that the JRE exits.

For JNI

ALWAYS, load the class in a try catch block
ALWAYS, catch 'Throwable' (not Exception, not Runtime)
ALWAYS, log/print the exception stack trace. Not the message - the entire stack trace.
ALWAYS, do the above (catch, log) any method call that goes to a JNI method.

Note that the following loads the class. You should NOT have code like this in your main entry class. DO NOT attempt to load the class this way using another class either.

class MyClass
{
    private MyJNIClass somevar
    ...

Instead use a Interface and have a method and that method does a 'new' for your JNI class.

class MyJNIClass implements MyJNIInterface {...}

interface MyJNIInterface {}

class MyClass
{
    MyJNIInterface var;

    public void setup()
    {
        try
        {
         var = new MyJNIClass();
        }
        catch(Throwable e)
        {
           // Log/print the stack trace
           // Figure out what to do if it fails.
        }
     }

My last recommendation - do not use JNI.
If you want to access some other language
1. Create an executable with an IO Interface. IO interface would be via stdin/out, sockets, files, etc.
2. Create an API in your java app that runs 1, and uses the IO interface to talk to it.

The above solution means that failures in the other code cannot cause your VM to exit. The is NO way to stop this. That is why I recommend the above.

Java Heap Space: out of memory

Member 1395683321-Aug-18 8:04

Member 13956833

21-Aug-18 8:04

When I am running apache servicemix. I am getting this Error

Caused by: java.lang.OutOfMemoryError: Java heap space

. Is there a way to increase the java heap size for opensuse11.

Full Error

<pre>08:04:06,029 | ERROR | ADS.MANUALSTART] | ads                              | 91 - org.apache.camel.camel-core - 2.8.5 | Exchange[
, Id:ID-linux-1q9s-8486-1533729523726-0-3
, ExchangePattern:InOnly
, Properties:{CamelToEndpoint=log://de.mt.esb.ecom.ads?level=ERROR&multiline=true&showBody=false&showBodyType=true&showCaughtException=true&showException=true&showExchangeId=true&showHeaders=true&showProperties=true&showStackTrace=true, CamelBinding=org.apache.camel.component.jms.JmsBinding@1e244b5, CamelCreatedTimestamp=Wed Aug 08 07:59:15 EDT 2018, CamelFailureEndpoint=log://de.mt.esb.ecom.ads?level=INFO&multiline=true&showBody=false&showBodyType=true&showCaughtException=true&showException=true&showExchangeId=true&showHeaders=true&showProperties=true&showStackTrace=true, CamelExceptionCaught=org.apache.camel.CamelExecutionException: Exception occurred during execution on the exchange: Exchange[JmsMessage[JmsMessageID: ID:414d5120514949552e4d512e4d414e414c2e6c5b20060c07]]}
, Headers:{JMS_IBM_PutDate=20180814, JMSDestination=queue:///ECOM.ADS.MANUALSTART, JMS_IBM_PutApplType=28, breadcrumbId=ID:414d5120514949552e4d512e4d414e414c2e6c5b20060c07, JMSCorrelationID=null, JMSXUserID=MUSR_MQADMIN, JMSMessageID=ID:414d5120514949552e4d512e4d414e414c2e6c5b20060c07, JMSXGroupID=null, JMSReplyTo=null, JMS_IBM_MsgType=8, ServiceName=HBBTV, JMSXDeliveryCount=1, JMSRedelivered=false, JMSTimestamp=1533729555402, JMS_IBM_PutTime=21304487, JMSPriority=4, JMS_IBM_Format=MQSTR   , JMSDeliveryMode=2, JMSXAppID=WebSphere MQ Client for Java, JMSExpiration=0, JMSType=null}
, BodyType:String
, CaughtExceptionType:org.apache.camel.CamelExecutionException, CaughtExceptionMessage:Exception occurred during execution on the exchange: Exchange[JmsMessage[JmsMessageID: ID:414d5120514949552e4d512e4d414e414c2e6c5b20060c07]], StackTrace:org.apache.camel.CamelExecutionException: Exception occurred during execution on the exchange: Exchange[JmsMessage[JmsMessageID: ID:414d5120514949552e4d512e4d414e414c2e6c5b20060c07]]
	at org.apache.camel.util.ObjectHelper.wrapCamelExecutionException(ObjectHelper.java:1187)
	at org.apache.camel.impl.DefaultExchange.setException(DefaultExchange.java:287)
	at org.apache.camel.impl.converter.AsyncProcessorTypeConverter$ProcessorToAsyncProcessorBridge.process(AsyncProcessorTypeConverter.java:51)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)
	at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)
	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)
	at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)
	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)
	at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:69)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)
	at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)
	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)
	at org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:90)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)
	at org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:318)
	at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:209)
	at org.apache.camel.processor.DefaultChannel.process(DefaultChannel.java:306)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)
	at org.apache.camel.processor.Pipeline.process(Pipeline.java:116)
	at org.apache.camel.processor.Pipeline.process(Pipeline.java:79)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)
	at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)
	at org.apache.camel.processor.ChoiceProcessor.process(ChoiceProcessor.java:80)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)
	at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)
	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)
	at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:69)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)
	at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)
	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)
	at org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:90)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)
	at org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:318)
	at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:209)
	at org.apache.camel.processor.DefaultChannel.process(DefaultChannel.java:306)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)
	at org.apache.camel.processor.Pipeline.process(Pipeline.java:116)
	at org.apache.camel.processor.Pipeline.process(Pipeline.java:79)
	at org.apache.camel.processor.UnitOfWorkProcessor.processAsync(UnitOfWorkProcessor.java:139)
	at org.apache.camel.processor.UnitOfWorkProcessor.process(UnitOfWorkProcessor.java:106)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)
	at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)
	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)
	at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:69)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:104)
	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:85)
	at org.apache.camel.component.jms.EndpointMessageListener.onMessage(EndpointMessageListener.java:91)
	at org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:560)
	at org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:498)
	at org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:467)
	at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.doReceiveAndExecute(AbstractPollingMessageListenerContainer.java:325)
	at org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:263)
	at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:1058)
	at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.executeOngoingLoop(DefaultMessageListenerContainer.java:1050)
	at org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:947)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
	at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.OutOfMemoryError: Java heap space
	at java.util.Arrays.copyOf(Arrays.java:2882)
	at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:100)
	at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:515)
	at java.lang.StringBuffer.append(StringBuffer.java:306)
	at java.io.StringWriter.write(StringWriter.java:77)
	at java.io.BufferedWriter.flushBuffer(BufferedWriter.java:111)
	at java.io.BufferedWriter.flush(BufferedWriter.java:235)
	at com.sun.xml.bind.v2.runtime.MarshallerImpl.cleanUp(MarshallerImpl.java:334)
	at com.sun.xml.bind.v2.runtime.MarshallerImpl.write(MarshallerImpl.java:327)
	at com.sun.xml.bind.v2.runtime.MarshallerImpl.marshal(MarshallerImpl.java:244)
	at javax.xml.bind.helpers.AbstractMarshallerImpl.marshal(AbstractMarshallerImpl.java:95)
	at de.mt.esb.ecom.ads.AffiliateProcessor.memoryMarshall(AffiliateProcessor.java:179)
	at de.mt.esb.ecom.ads.AffiliateProcessor.process(AffiliateProcessor.java:109)
	at org.apache.camel.impl.converter.AsyncProcessorTypeConverter$ProcessorToAsyncProcessorBridge.process(AsyncProcessorTypeConverter.java:48)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)
	at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)
	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)
	at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)
	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)
	at org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:69)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)
	at org.apache.camel.processor.DelegateAsyncProcessor.processNext(DelegateAsyncProcessor.java:98)
	at org.apache.camel.processor.DelegateAsyncProcessor.process(DelegateAsyncProcessor.java:89)
	at org.apache.camel.processor.interceptor.TraceInterceptor.process(TraceInterceptor.java:90)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)
	at org.apache.camel.processor.RedeliveryErrorHandler.processErrorHandler(RedeliveryErrorHandler.java:318)
	at org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:209)
	at org.apache.camel.processor.DefaultChannel.process(DefaultChannel.java:306)
	at org.apache.camel.util.AsyncProcessorHelper.process(AsyncProcessorHelper.java:78)
	at org.apache.camel.processor.Pipeline.process(Pipeline.java:116)
	at org.apache.camel.processor.Pipeline.process(Pipeline.java:79)
]

Re: Java Heap Space: out of memory

Richard MacCutchan21-Aug-18 21:23

Richard MacCutchan

21-Aug-18 21:23

You need to find out why it is running out of heap space, see Understand the OutOfMemoryError Exception[^].

Re: Java Heap Space: out of memory

Member 1401730113-Oct-18 7:15

Member 14017301

13-Oct-18 7:15

While I am surfing I came across one tool named Java & Android Heap Dump Analyzer I hope this will clear out all the memory related issues.

java code for hadoop for builting data warehouse

Shivendra chavan19-Aug-18 19:58

Shivendra chavan

19-Aug-18 19:58

I want java code for hadoop for builting data warehouse.anyone plz help.

Re: java code for hadoop for builting data warehouse

Richard MacCutchan19-Aug-18 21:27

Richard MacCutchan

19-Aug-18 21:27

I want a Ferrari and a speedboat.

Forum Guidelines - PLEASE READ - Java Discussion Boards[^]

Java

Member 1394945814-Aug-18 15:46

Member 13949458

14-Aug-18 15:46

How to design fingerprint (gui)and how to implement the codes.

Re: Java

Richard MacCutchan14-Aug-18 20:42

Richard MacCutchan

14-Aug-18 20:42

By researching all the features that your application requires.

Re: Java

jschell19-Aug-18 7:36

jschell

19-Aug-18 7:36

1. Learn basics of java
2. Learn basics of UI work
3. Choose a device to sample fingerprints
4. Learn about the API for that device.
5. Learn about image analysis
6. Learn how to build applications (more complicated that #1.)
7. Put all of the above together.

Re: Java

mohit gite22-Nov-18 22:46

mohit gite

22-Nov-18 22:46

Quote:
up vote
28
down vote
accepted
You need the fingerprint-gui package, its installation is described at Fingerprint GUI launchpad page and reproduced below:

Add PP and install fingerprint-gui and other required packages

sudo add-apt-repository ppa:fingerprint/fingerprint-gui
sudo apt update
sudo apt install libbsapi policykit-1-fingerprint-gui fingerprint-gui
Log out of your session and log back in.

Launch “Fingerprint GUI” and enrol your fingerprints.
Please note: I've used fingerprint readers on various laptops before, they are not very reliable so make sure you don't configure it to be the only source of authentication. It's best to add it on top of passwords as well or you may get locked out at some point.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.