hi i use this project in my app :
https://github.com/schwabe/ics-openvpn
and write a vpn application
its work fine on all android version because on android 10 i give this error on logcat :
2020-04-01 01:47:56.914 2540-2839/com.vpnfree.approid I/OpenVPN: Starting openvpn
2020-04-01 01:47:56.920 2540-2839/com.vpnfree.approid E/OpenVPN: OpenVPNThread Got java.lang.NullPointerException: Attempt to invoke virtual method 'void java.lang.Process.destroy()' on a null object reference
2020-04-01 01:47:56.920 2540-2839/com.packagename.approid E/level: LEVEL_NOTCONNECTED
2020-04-01 01:47:56.959 2540-2839/com.packagename.approid I/OpenVPN: Exiting
It's not working because when you call destroy(), you are calling it on a null object. This is throwing an NPE can preventing you from connecting.
This null pointer exception can be the result of process builder starting a new process by loading a binary from assets which is not supported by android.
You can confirm this case by using e.printStackTrace(); in catch clause near line 187 - line 188 of method private void startOpenVPNThreadArgs(String[] argv) which can be found in OpenVPNThread.java.
If you get error 13 in your log cat like this:
java.io.IOException: Cannot run program "...": error=13, Permission denied
Then you might be using older version of ics-openvpn. In this case please refer to this:
My answer to: "Creating VPN by using OpenVPN"
My comment on the "What change in API 29" issue in the schwabe /
ics-openvpn GitHub repository
I hope that this will resolve your issue.
android:extractNativeLibs="true"
tools:replace="android:extractNativeLibs"
Add This Two Lines In Your Manifest Application
Related
I'm trying to write a Java application for digitally signing documents using a bit4Id miniLector token.
I'm in a Linux development environment.
The token is correctly installed, I can sign my documents also with the app downloaded from the manufacturer, but I have to write a new one for other purposes. The driver used is located at
/usr/lib/x86_64-linux-gnu/engines-1.1/pkcs11.so
I'm stuck with this error:
/usr/lib/jvm/jdk1.8.0_111/bin/java ...
Exception in thread "main" java.security.ProviderException: Initialization failed
at sun.security.pkcs11.SunPKCS11.<init>(SunPKCS11.java:376)
at sun.security.pkcs11.SunPKCS11.<init>(SunPKCS11.java:103)
at com.itextpdf.samples.signatures.chapter02.C2_01_SignHelloWorld.main
(C2_01_SignHelloWorld.java:83)
Caused by: java.io.IOException: ERROR: C_GetFunctionList == NULL
at sun.security.pkcs11.wrapper.PKCS11.connect(Native Method)
at sun.security.pkcs11.wrapper.PKCS11.<init>(PKCS11.java:138)
at sun.security.pkcs11.wrapper.PKCS11.getInstance(PKCS11.java:151)
at sun.security.pkcs11.SunPKCS11.<init>(SunPKCS11.java:313)
... 2 more
The provider is listed in $JAVA_HOME/jre/lib/security/java.security file as:
security.provider.10=sun.security.pkcs11.SunPKCS11
The code behaving this way is this:
String configFile = "/opt/bar/cfg/pkcs11.cfg";
Provider provider = new sun.security.pkcs11.SunPKCS11(configFile); <-- line 83
The needed libraries are all imported by my IDE and I have no compile/link errors.
I didn't find this exact type of error in hours of googling.
If you need any further information let me know, any kind help is very appreciated, thanks.
For visual clarity I add all missing information with respect to the original question here below
Updates
Content of the pkcs11.cfg file:
$ cat /opt/bar/cfg/pkcs11.cfg
name="bit4id miniLector-EVO"
library=/usr/lib/x86_64-linux-gnu/engines-1.1/pkcs11.so
Ok, I got it.
The problem is the driver.
Replacing
/usr/lib/x86_64-linux-gnu/engines-1.1/pkcs11.so
with
/opt/Firma4NG/System/Firma4NG_Linux/Firma4/drivers/mu-x64/libbit4xpki.so
that is one of the manufacturer's driver, now I can go further and, for example, dumping all info about the card:
Information for provider SunPKCS11-bit4id miniLector-EVO
Library info:
cryptokiVersion: 2.20
manufacturerID: bit4id srl
flags: 0
libraryDescription: bit4id PKCS#11
libraryVersion: 1.02
...
This question can be closed.
I am developing a simple Kafka Stream application which extracting messages from a topic and put it into another topic after transformation. I am using Intelij for my development.
When I debug/run this application, it works perfect if my IDE and the Kafka Server sitting in the SAME machine
(i.e. with the BOOTSTRAP_SERVERS_CONFIG = localhost:9092 and
SCHEMA_REGISTRY_URL_CONFIG = localhost:8081)
However, when I try to use another machine to do the development
(i.e. with the BOOTSTRAP_SERVERS_CONFIG = XXX.XXX.XXX:9092 and
SCHEMA_REGISTRY_URL_CONFIG = XXX.XXX.XXX:8081 where XXX.XXX.XXX is the
ip address of my Kafka),
the debug process run without problem at the 1st time. However, when I run 2nd time after resetting the offset, I received the following error:
ERROR stream-thread [main] Failed to delete the state directory. (org.apache.kafka.streams.processor.internals.StateDirectory:297)
java.nio.file.DirectoryNotEmptyException: \tmp\kafka-streams\my_application_id\0_0
Exception in thread "main" org.apache.kafka.streams.errors.StreamsException: java.nio.file.DirectoryNotEmptyException:
If I changed my_application_id as my_application_id2, and run it, it works again at the 1st time but receiving error again if I run it again.
I have the following code in my last sentence in my application:
Runtime.getRuntime().addShutdownHook(new Thread(streams::close));
Any advice how to solve this problem?
UPDATE:
I have reviewed the state directory created in my development machine (Windows Platform) and if I delete these directory manually before running 2nd time, no error found. I have tried to run my IDE as Administrator because I think this could be something about the permission on the folder. However, this doesn't help.
Full stack for reference:
INFO Kafka version : 1.1.0 (org.apache.kafka.common.utils.AppInfoParser:109)
INFO Kafka commitId : fdcf75ea326b8e07 (org.apache.kafka.common.utils.AppInfoParser:110)
INFO stream-thread [main] Deleting state directory 0_0 for task 0_0 as user calling cleanup. (org.apache.kafka.streams.processor.internals.StateDirectory:281)
Disconnected from the target VM, address: '127.0.0.1:16552', transport: 'socket'
Exception in thread "main" org.apache.kafka.streams.errors.StreamsException: java.nio.file.DirectoryNotEmptyException: C:\workspace\bennychan\kafka-streams\my_application_001\0_0
at org.apache.kafka.streams.processor.internals.StateDirectory.clean(StateDirectory.java:231)
at org.apache.kafka.streams.KafkaStreams.cleanUp(KafkaStreams.java:931)
at com.macroviewhk.financialreport.simpleStream.start(simpleStream.java:60)
at com.macroviewhk.financialreport.simpleStream.main(simpleStream.java:45)
Caused by: java.nio.file.DirectoryNotEmptyException: C:\workspace\bennychan\kafka-streams\my_application_001\0_0
at sun.nio.fs.WindowsFileSystemProvider.implDelete(WindowsFileSystemProvider.java:266)
at sun.nio.fs.AbstractFileSystemProvider.delete(AbstractFileSystemProvider.java:103)
at java.nio.file.Files.delete(Files.java:1126)
at org.apache.kafka.common.utils.Utils$1.postVisitDirectory(Utils.java:651)
at org.apache.kafka.common.utils.Utils$1.postVisitDirectory(Utils.java:634)
at java.nio.file.Files.walkFileTree(Files.java:2688)
at java.nio.file.Files.walkFileTree(Files.java:2742)
at org.apache.kafka.common.utils.Utils.delete(Utils.java:634)
ERROR stream-thread [main] Failed to delete the state directory. (org.apache.kafka.streams.processor.internals.StateDirectory:297)
at org.apache.kafka.streams.processor.internals.StateDirectory.cleanRemovedTasks(StateDirectory.java:287)
java.nio.file.DirectoryNotEmptyException: C:\workspace\bennychan\kafka-streams\my_application_001\0_0
at org.apache.kafka.streams.processor.internals.StateDirectory.clean(StateDirectory.java:228)
at sun.nio.fs.WindowsFileSystemProvider.implDelete(WindowsFileSystemProvider.java:266)
... 3 more
at sun.nio.fs.AbstractFileSystemProvider.delete(AbstractFileSystemProvider.java:103)
at java.nio.file.Files.delete(Files.java:1126)
at org.apache.kafka.common.utils.Utils$1.postVisitDirectory(Utils.java:651)
at org.apache.kafka.common.utils.Utils$1.postVisitDirectory(Utils.java:634)
at java.nio.file.Files.walkFileTree(Files.java:2688)
at java.nio.file.Files.walkFileTree(Files.java:2742)
at org.apache.kafka.common.utils.Utils.delete(Utils.java:634)
at org.apache.kafka.streams.processor.internals.StateDirectory.cleanRemovedTasks(StateDirectory.java:287)
at org.apache.kafka.streams.processor.internals.StateDirectory.clean(StateDirectory.java:228)
at org.apache.kafka.streams.KafkaStreams.cleanUp(KafkaStreams.java:931)
at com.macroviewhk.financialreport.simpleStream.start(simpleStream.java:60)
at com.macroviewhk.financialreport.simpleStream.main(simpleStream.java:45)
UPDATE 2 :
After another detailed check, the line below throwing IOException
Files.walkFileTree(file.toPath(), new SimpleFileVisitor<Path>() {
This line is located at kafka-clients-1.1.0.jar org.apache.kafka.common.utilsUtils.class
May be this is the problem with Windows system (sorry that I am not an experienced JAVA programmer).
For googlers..
I'm currently using this Scala code for helping windows guys to handle deletion of state store.
if (System.getProperty("os.name").toLowerCase.contains("windows")) {
logger.info("WINDOWS OS MODE - Cleanup state store.")
try {
FileUtils.deleteDirectory(new File("/tmp/kafka-streams/" + config.getProperty("application.id")))
FileUtils.forceMkdir(new File("/tmp/kafka-streams/" + config.getProperty("application.id")))
} catch {
case e: Exception => logger.error(e.toString)
}
}
else {
streams.cleanUp()
}
I agree with #ideano1 that is seems to be related to https://issues.apache.org/jira/browse/KAFKA-6647 -- what you can try is, to explicitly call KafkaStreams#cleanUp() between tests. It's unclear why there are issues at Window-OS. Atm, all testing happens on Linux.
This is what we've implemented that works on Windows. This is written in Kotlin.
Version used : kafka-streams-test-utils:2.3.0.
The key is to catch the exception. The tests will pass as long as you catch the exception raised by testDriver.close()even if you don't delete the directory. However, cleaning up the directory makes your unit tests independent and repeatable.
val directory = "test"
#BeforeEach
fun setup(){
//other code omitted for setting the props
props.setProperty(StreamsConfig.STATE_DIR_CONFIG,directory)
}
#AfterEach
fun tearDown(){
try{
testDriver.close()
}catch(exception: Exception){
FileUtils.deleteDirectory(File(directory)) //there is a bug on Windows that does not delete the state directory properly. In order for the test to pass, the directory must be deleted manually
}
}
For tests (but not only if you afford so) one could use an IN_MEMORY("in-memory") store for each KTable created (directly or indirectly, by e.g. aggregations); this avoids the creation of any directory such that the error no longer occurs.
I'm trying to profile a Java stored proc inside an Oracle DB. My user has been granted role JMXSERVER, but when I run call dbms_java.start_jmx_agent('22222', 'false', 'false'); I get:
ORA-29532: Java call terminated by uncaught Java exception: java.lang.RuntimeException: java.lang.RuntimeException: Management agent class failed
ORA-06512: at "SYS.DBMS_JAVA", line 803
ORA-06512: at "SYS.DBMS_JAVA", line 812
ORA-06512: at line 1
I've traced the error to this line in JDK: https://github.com/frohoff/jdk8u-dev-jdk/blob/master/src/share/classes/sun/management/Agent.java#L483, and the exception details are printed to System.err, but where does Oracle write its stderr to?
You have to redirect the output like this:
select DBMS_JAVA.SET_OUTPUT_TO_SQL('1', 'begin dbms_output.put_line(:1); end;','TEXT') from dual;
Then the error will be printed to the SQL session output. In my case the culprit was a missing file javavm//lib/management/management.properties, so I went to server admins.
You can also redirect the Java System.out and System.err to DBMS_OUTPUT:
dbms_java.set_output(100);
By the way, I tried the DBMS_JAVA.SET_OUTPUT_TO_SQL function as provided by Alexey but it failed with "Parameter 2 has invalid SQL" error. Did it work for you?
I have recently started using gwt-log.
I followed the Getting Started tutorial and added Log.setUncaughtExceptionHandler() in my initialization file as suggested, but when it is there I get this exception in the chrome console (using super dev mode):
2014-07-31 15:16:21,025 [FATAL] Uncaught Exception:
com.google.gwt.core.client.JavaScriptException: (TypeError)
__gwt$exception: <skipped>: Cannot read property 'formatTotal' of null
at Unknown.$getTotal_1(project-0.js#33:126146)
at Unknown.$getFromModel_198(project-0.js#65:103988)
at Unknown.getFromModel_199(project-0.js#10:104011)
at Unknown.$visit(project-0.js#15:22142)
at Unknown.visit_3(project-0.js#10:22188)
at Unknown.$traverse(project-0.js#11:21813)
at Unknown.accept_73(project-0.js#33:103339)
at Unknown.$traverse(project-0.js#57:21813)
at Unknown.$traverse_0(project-0.js#13:21877)
at Unknown.attach(project-0.js#21:21903)
...
Quite hard to debug as you can see, no line numbers or link to java source. When I comment out the Log.setUncaughtExceptionHandler() line I get the source mapped to the exception like this:
Uncaught TypeError: Cannot read property 'formatTotal' of null UnitRate.java:87
$getTotal_1 UnitRate.java:87
$getFromModel_198 UnitRateRenderer_total_Context.java:17
getFromModel_199 UnitRateRenderer_total_Context.java:16
$visit Refresher.java:30
visit_3 Initializer.java:49
$traverse AbstractEditorContext.java:128
accept_73 UnitRateRenderer_SimpleBeanEditorDelegate.java:57
$traverse AbstractEditorContext.java:129
$traverse_0 AbstractEditorDelegate.java:100
...
Is this expected behaviour or am I not doing something I should be?
i'm having some issues after a migration to HA enviroments, the Sysout Log is showing the following problem
[3/31/13 11:15:17:096 CLT] 00000004 QueueTHandler W DCSV0002W: DCS Stack DefaultCoreGroup at Member lnxq030Cell01\lnxq060Node01\ibra01: An unexpected internal programming state has occurred. Internal details: "Can't open Async QueueT because DCS got null member address from the AddressResolver" {Method=QueueTHandler.openQTonIpPort(), PtpRmmNode=PtpRmmNode|lnxq030Cell01\ibra01\riesgoCred01|null|2, TopicName=[B#29442944} . The exception is .
Any ideas?
Thanks in advance
I met the issue recently, and finally I found the problem is from my mistake:
manageProfile.bat -create ... -hostName xxx
We should not use the argument -hostName, defaultly the command will use the full qualified host name.
The correct command should be:
manageProfile.bat -create ... -dmgrHost xxx