I built a Java library to send message in IBM MQ.
It is working fine when I execute the code on the library project.
However, when I use the .jar into another tool (JMeter), an error occurs.
java.lang.NoSuchMethodError: com.ibm.mq.jmqi.JmqiFactory.getInstance(Lcom/ibm/mq/jmqi/JmqiThreadPoolFactory;Lcom/ibm/mq/jmqi/JmqiPropertyHandler;)Lcom/ibm/mq/jmqi/JmqiEnvironment;
at com.ibm.msg.client.mqlight.MQLightComponent.getImplementationInfo(MQLightComponent.java:220) ~[mq-jms-8.0.0.3.jar:8.0.0.3 - p800-003-150615.2]
at com.ibm.msg.client.commonservices.trace.Trace.getVersion(Trace.java:1692) ~[mq-jms-7.0.1.3.jar:?]
at com.ibm.msg.client.commonservices.trace.Trace.createFFSTString(Trace.java:1650) ~[mq-jms-7.0.1.3.jar:?]
at com.ibm.msg.client.commonservices.trace.Trace.ffstInternal(Trace.java:1536) ~[mq-jms-7.0.1.3.jar:?]
at com.ibm.msg.client.commonservices.trace.Trace.ffst(Trace.java:1444) ~[mq-jms-7.0.1.3.jar:?]
at com.ibm.msg.client.jms.JmsFactoryFactory.getInstance(JmsFactoryFactory.java:209) ~[mq-jms-7.0.1.3.jar:7.0.1.3 - k701-103-100812]
at com.ibm.mq.jms.MQConnectionFactory.initialiseMQConnectionFactory(MQConnectionFactory.java:3325) ~[mq-jms-7.0.1.3.jar:7.0.1.3 - k701-103-100812]
at com.ibm.mq.jms.MQConnectionFactory.<init>(MQConnectionFactory.java:274) ~[mq-jms-7.0.1.3.jar:7.0.1.3 - k701-103-100812]
at my.package.MQ_Manager.createConnection(MQ_Manager.java:36) ~[my-jar.jar:?]
at my.package.MQ_Manager.<init>(MQ_Manager.java:27) ~[my-jar.jar:?]
at my.package.Producer.<init>(Producer.java:18) ~[my-jar.jar:?]
at my.package.Request.sendRequest(Request.java:116) ~[my-jar.jar:?]
at my.package.Request$sendRequest$2.call(Unknown Source) ~[?:?]
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47) ~[groovy-all-2.4.16.jar:2.4.16]
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:116) ~[groovy-all-2.4.16.jar:2.4.16]
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:120) ~[groovy-all-2.4.16.jar:2.4.16]
at Script1.run(Script1.groovy:14) ~[?:?]
at org.codehaus.groovy.jsr223.GroovyScriptEngineImpl.eval(GroovyScriptEngineImpl.java:321) ~[groovy-all-2.4.16.jar:2.4.16]
at org.codehaus.groovy.jsr223.GroovyCompiledScript.eval(GroovyCompiledScript.java:72) ~[groovy-all-2.4.16.jar:2.4.16]
at javax.script.CompiledScript.eval(Unknown Source) ~[?:1.8.0_31]
at org.apache.jmeter.util.JSR223TestElement.processFileOrScript(JSR223TestElement.java:223) ~[ApacheJMeter_core.jar:5.1 r1853635]
at org.apache.jmeter.protocol.java.sampler.JSR223Sampler.sample(JSR223Sampler.java:71) ~[ApacheJMeter_java.jar:5.1 r1853635]
at org.apache.jmeter.threads.JMeterThread.doSampling(JMeterThread.java:622) ~[ApacheJMeter_core.jar:5.1 r1853635]
at org.apache.jmeter.threads.JMeterThread.executeSamplePackage(JMeterThread.java:546) ~[ApacheJMeter_core.jar:5.1 r1853635]
at org.apache.jmeter.threads.JMeterThread.processSampler(JMeterThread.java:486) ~[ApacheJMeter_core.jar:5.1 r1853635]
at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:253) ~[ApacheJMeter_core.jar:5.1 r1853635]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_31]
Corresponding code:
MQConnectionFactory factory = new MQConnectionFactory();
factory.setHostName(properties.getProperty("HOST"));
factory.setPort(Integer.parseInt(properties.getProperty("PORT")));
factory.setChannel(properties.getProperty("CHANNEL"));
factory.setTransportType(WMQConstants.WMQ_CM_CLIENT);
factory.setQueueManager(properties.getProperty("QUEUE_MANAGER"));
factory.setAppName(properties.getProperty("APP_NAME"));
Connection connection = factory.createConnection(properties.getProperty("APP_USER"), properties.getProperty("APP_PASSWORD"));
connection.start();
return connection;
Error occurs at this line MQConnectionFactory factory = new MQConnectionFactory();
Any idea? Thank you.
Update 1
To create the .jar I :
Clicked on Export
Selected Runnable JAR file
Selected Extract required libraries into generated JAR
Update 2
Moreover when I built the Jar, I get this warning. Do you think that is important?
This operation repacks references libraries. Please review the licences associated with libraries you wish ti reference to make sure you are able to repack them using this application. Note also that this operation does not copy signature files from orignal libraies to the generated JAR file.
After disccussing the issue with the OP I went ahead a verified the issue myself.
The result is that its working for me ...
Step 1:
Created a maven project with included the following code
package test;
import javax.jms.JMSException;
import com.ibm.mq.jms.MQConnectionFactory;
public class JmeterTest {
public JmeterTest() {
}
public void test() throws JMSException {
MQConnectionFactory factory = new MQConnectionFactory();
factory.setAppName("myApp");
}
public static void main(String[] args) {
System.out.println("test");
}
}
Step 2:
Exported this from eclipse as runnable jar and copied into JMeter (\lib\ext\).
Note that a export with library handling package required jars into generated jar does not work. Use Extract into generated jar or Copy into subfolder (and then copy the jars from the subfolder into \lib\ext as well).
related dependecies are:
com.ibm.mq.allclient-9.0.4.0.jar
bcokix-jdk15on-1.57.jar
bcprov-jdk15on-1.57.jar
javax.jms-api-2.0.1.jar
Step 3:
Started JMeter and created a ThreadGroup with a JSR223 Sampler.
import test.JmeterTest;
new JmeterTest().test();
Then started the test. No error occurred.
Step 4:
Instead of exporting a library, you could directly (after adding the dependencies) add the required code into the script panel:
import javax.jms.JMSException;
import com.ibm.mq.jms.MQConnectionFactory;
MQConnectionFactory factory = new MQConnectionFactory();
factory.setAppName("myApp");
Worked as well
Conclusion: Interference from other dependencies on the jmeter classpath are the likeliest cause of the issue.
Related
Since the java 7 update 25 launched by Oracle our application no longer functions.
Initially we got some warning about codebase & sercurity tags missing in the Manifest file, which we fixed.
The problem we now end up with is that in the Console we only get the following lines:
#### Java Web Start Error:
#### null
We also get an application Error dialog with the message: Unable to launch the application.
The details button gives the following details in the Exception:
java.lang.NullPointerException
at com.sun.jnlp.JNLPClassLoader.getPermissions(Unknown Source)
at java.security.SecureClassLoader.getProtectionDomain(SecureClassLoader.java:206)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at com.sun.jnlp.JNLPClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at desktop.DesktopProxySelector.<init>(DesktopProxySelector.java:24) <- code smippet below
at desktop.Main.main(Main.java:139) <- code smippet below
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.sun.javaws.Launcher.executeApplication(Unknown Source)
at com.sun.javaws.Launcher.executeMainClass(Unknown Source)
at com.sun.javaws.Launcher.doLaunchApp(Unknown Source)
at com.sun.javaws.Launcher.run(Unknown Source)
at java.lang.Thread.run(Thread.java:724)
The relevant code parts are:
Desktop.Main.main
/**
* Main method, starts the application
*/
public static void main(String[] args) {
System.setProperty("java.net.useSystemProxies", "true");
//Logger.getLogger("httpclient.wire.header.level").setLevel(Level.FINEST);
//Logger.getLogger("org.apache.commons.httpclient.level").setLevel(Level.FINEST);
java.net.ProxySelector.setDefault(new DesktopProxySelector(java.net.ProxySelector.getDefault()));
(The last line is line number 139)
desktop.DesktopProxySelector:
public class DesktopProxySelector extends ProxySelector {
public DesktopProxySelector(ProxySelector defaultSelector) {
URI httpsUri = new CentralConfigurationService().getCentralLocation();
(The last line is line number 24 where the exception occures)
Can someone give us some clues hints (or better a solution) for this new behaviour of java caused by this 'minor' update.
When we run the application straight from the cli using java -jar Desktop.jar the application wil run file, so the issue has clearly something todo with the changes in java web start.
#trashgod: the error clearly has something to do with the Permissions change in 7u25, since the NullPointerException occurs in com.sun.jnlp.JNLPClassLoader.getPermissions.
Just to explain what I think happens (I am a colleague of Wouter):
desktop.Main instantiates a desktop.DesktopProxySelector (our class),
desktop.DesktopProxySelector instantiates desktop.configuration.CentralConfigurationService
desktop.configuration.CentralConfigurationService instantiates a java.net.URI.
On the first line of the DesktopProxySelector init where the CentralConfigurationService is instantiated the getPermissions method, called by the JNLPClassLoader, throws the NullPointerException. So something is going wrong while loading the CentralConfigurationService class by java webstart with getting the permissions for the class. Could that have anything to do with the fact that a URI class is instantiated, which requires extra permissions (a connection to a remote uri is setup)?
Eventually the problem was solved.
The problem was caused between a mismatch in the included jar files in the main MANIFEST.MF file vs the jar files mentioned in the launch.jnlp.
Apperently it is now required to have all jar files that will be used also be present in the launch.jnlp file.
(In the past it was decided to keep this file manually in sink, which obviously was not always maintained in a propper way. Now this process is automated, so the problem should no longer happen to us.)
I am following Head First EJB. I know it has EJB 2.0 which is old as now EJB 3.1 is in. But I consider Head first book a good book for learning for amateurs like us.
I am using J2ee 1.3.1 RI and jdk 1.4. I ran the "deploy" tool to deploy by EJB and now I have a ejb client JAVA program given below:
import javax.naming.*;
import java.rmi.*;
import javax.rmi.*;
import headfirst.*;
import javax.ejb.*;
import java.util.*;
public class AdviceClient {
public static void main(String[] args){
new AdviceClient().go();
}
public void go(){
try{
Properties props=new Properties();
props.setProperty(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.rmi.registry.RegistryContextFactory");
//props.setProperty(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.fscontext.RefFSContextFactory");
//env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.rmi.registry.RegistryContextFactory");
//props.setProperty(Context.INITIAL_CONTEXT_FACTORY,"com.sun.enterprise.naming.SerialInitContextFactory");
props.setProperty(Context.PROVIDER_URL,"rmi://localhost:1050");
//props.setProperty("java.naming.provider.url","rmi://localhost:1099");
Context ic = new InitialContext(props);
Object o = ic.lookup("Advisor");
AdviceHome home = (AdviceHome)PortableRemoteObject.narrow(o,AdviceHome.class);
Advice advisor = home.create();
System.out.println(advisor.getAdvice());
}
catch(Exception ex){
ex.printStackTrace();
}
}
}
Following the book, I compiled the program. The "Properties" part is something not mentioned in the example. I got it from some other examples on the web. Now, that when I am executing the client, am getting the following error:
F:\EJBProject\advice>java -classpath AdviceAppClient.jar;. AdviceClient
javax.naming.CommunicationException [Root exception is java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is:
java.net.SocketTimeoutException: Read timed out]
at com.sun.jndi.rmi.registry.RegistryContext.lookup(Unknown Source)
at com.sun.jndi.rmi.registry.RegistryContext.lookup(Unknown Source)
at javax.naming.InitialContext.lookup(Unknown Source)
at AdviceClient.go(AdviceClient.java:26)
at AdviceClient.main(AdviceClient.java:11)
Caused by: java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is:
java.net.SocketTimeoutException: Read timed out
at sun.rmi.transport.tcp.TCPChannel.createConnection(Unknown Source)
at sun.rmi.transport.tcp.TCPChannel.newConnection(Unknown Source)
at sun.rmi.server.UnicastRef.newCall(Unknown Source)
at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
... 5 more
Caused by: java.net.SocketTimeoutException: Read timed out
at java.net.SocketInputStream.socketRead0(Native Method)
at java.net.SocketInputStream.read(Unknown Source)
at java.net.SocketInputStream.read(Unknown Source)
at java.io.BufferedInputStream.fill(Unknown Source)
at java.io.BufferedInputStream.read(Unknown Source)
at java.io.DataInputStream.readByte(Unknown Source)
Please help. I am stuck up badly here. I wanted to sit for the OCBCD exam!
Regards,
Shouvanik
Finally Solved.
If you hit a roadblock while running the first EJB example simply follow these steps
to run the first example of HeadFirst EJB.
Softwares
1. j2sdk1.4.1 - jdk
2. j2sdkee1.3.1 - j2ee RI
3. CMD (command prompt)
Compile all the classes using c:\j2sdkee1.3.1\lib\j2ee.jar library.
Now, create a App and deploy EJB inside RI. download the application client as shown in the book.
Now, comes the tricky part.
Compile client class using the following jars
javac -classpath AdviceAppClient.jar;c:\j2sdkee1.3.1\lib\j2ee.jar AdviceClient.java
Next, run the client as follows
java -cp AdviceAppClient.jar;c:\j2sdkee1.3.1\lib\j2ee.jar;c:\j2sdk1.4.1\jre\lib\rt.jar;. AdviceClient
Since few weeks we have some trouble with our external test environment (which is not operated by us). Our webapplication is connected to a soap webservice.
We are using:
metro 2.1.1 for the webservice client
java-1.5.0-ibm-1.5.0.12.4 is installed on the test environment.
tomcat version: 5.5.27
The first time trying to initialize the client on this environment, we are getting the following exception (only on this environment):
java.lang.ExceptionInInitializerError
at java.lang.J9VMInternals.initialize(J9VMInternals.java:218)
at javax.xml.ws.Service.<init>(Service.java:57)
at com.xxx.xxx.xxx.xxxy.client.MyServiceRequestProvider_Service.<init>(MyServiceRequestProvider_Service.java:50)
at com.xxx.xxx.client.MyServiceRequester.<init>(MyServiceRequester.java:63)
at com.xxx.xxx.action.CheckAction.execute(CheckAction.java:120)
at com.xxx.xxx.webservice.validators.ApplicationValidatorImpl.validateCheck(ApplicationValidatorImpl.java:403)
at com.xxx.xxx.webservice.validators.ApplicationValidatorImpl$$EnhancerByGuice$$55e5e7ad.CGLIB$validateCheck$6(<generated>)
at com.xxx.xxx.webservice.validators.ApplicationValidatorImpl$$EnhancerByGuice$$55e5e7ad$$FastClassByGuice$$380e5720.invoke(<generated>)
at com.google.inject.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:187)
at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66)
at com.xxx.xxx.webservice.guice.interceptor.ValidationErrorInterceptor.invoke(ValidationErrorInterceptor.java:21)
at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66)
at com.xxx.xxx.webservice.guice.interceptor.PersistenzInterceptor.invoke(PersistenzInterceptor.java:35)
at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66)
at com.google.inject.InterceptorStackCallback.intercept(InterceptorStackCallback.java:45)
at com.xxx.xxx.webservice.validators.ApplicationValidatorImpl$$EnhancerByGuice$$55e5e7ad.validateCheck(<generated>)
at com.xxx.xxx.webservice.endpoint.xxxWS.order(xxxWS.java:99)
at com.xxx.xxx.webservice.endpoint.xxxWS$$EnhancerByGuice$$3bd5ffaf.CGLIB$order$1(<generated>)
at com.xxx.xxx.webservice.endpoint.xxxWS$$EnhancerByGuice$$3bd5ffaf$$FastClassByGuice$$806bc0a0.invoke(<generated>)
at com.google.inject.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:187)
at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66)
at com.xxx.xxx.webservice.guice.interceptor.RsvAgeManipulatorInterceptor.invoke(RsvAgeManipulatorInterceptor.java:95)
at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66)
at com.xxx.xxx.webservice.guice.interceptor.ValueConverterInterceptor.invoke(ValueConverterInterceptor.java:101)
at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66)
at com.xxx.xxx.webservice.guice.interceptor.DataValidationInterceptor.invoke(DataValidationInterceptor.java:31)
at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66)
at com.xxx.xxx.webservice.guice.interceptor.UserValidationInterceptor.invoke(UserValidationInterceptor.java:36)
at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66)
at com.xxx.xxx.webservice.guice.interceptor.SessionInitializerInterceptor.invoke(SessionInitializerInterceptor.java:65)
at com.google.inject.InterceptorStackCallback$InterceptedMethodInvocation.proceed(InterceptorStackCallback.java:66)
at com.google.inject.InterceptorStackCallback.intercept(InterceptorStackCallback.java:45)
at com.xxx.xxx.webservice.endpoint.xxxWS$$EnhancerByGuice$$3bd5ffaf.order(<generated>)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:618)
at com.sun.xml.ws.api.server.InstanceResolver$1.invoke(InstanceResolver.java:250)
at com.sun.xml.ws.server.InvokerTube$2.invoke(InvokerTube.java:150)
at com.sun.xml.ws.server.sei.EndpointMethodHandler.invoke(EndpointMethodHandler.java:261)
at com.sun.xml.ws.server.sei.SEIInvokerTube.processRequest(SEIInvokerTube.java:100)
at com.sun.xml.ws.api.pipe.Fiber.__doRun(Fiber.java:641)
at com.sun.xml.ws.api.pipe.Fiber._doRun(Fiber.java:600)
at com.sun.xml.ws.api.pipe.Fiber.doRun(Fiber.java:585)
at com.sun.xml.ws.api.pipe.Fiber.runSync(Fiber.java:482)
at com.sun.xml.ws.server.WSEndpointImpl$2.process(WSEndpointImpl.java:314)
at com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit.handle(HttpAdapter.java:608)
at com.sun.xml.ws.transport.http.HttpAdapter.handle(HttpAdapter.java:259)
at com.sun.xml.ws.transport.http.servlet.ServletAdapter.invokeAsync(ServletAdapter.java:207)
at com.sun.xml.ws.transport.http.servlet.WSServletDelegate.doGet(WSServletDelegate.java:159)
at com.sun.xml.ws.transport.http.servlet.WSServletDelegate.doPost(WSServletDelegate.java:194)
at com.sun.xml.ws.transport.http.servlet.WSServlet.doPost(WSServlet.java:80)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:172)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:775)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:704)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:897)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
at java.lang.Thread.run(Thread.java:811)
Caused by: java.lang.SecurityException: java.util.ServiceLoader - protected system package 'java.util'
at java.lang.ClassLoader.checkClassName(ClassLoader.java:213)
at java.lang.ClassLoader.defineClass(ClassLoader.java:255)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:151)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:600)
at java.net.URLClassLoader.access$400(URLClassLoader.java:124)
at java.net.URLClassLoader$ClassFinder.run(URLClassLoader.java:1055)
at java.security.AccessController.doPrivileged(AccessController.java:274)
at java.net.URLClassLoader.findClass(URLClassLoader.java:492)
at java.lang.ClassLoader.loadClass(ClassLoader.java:640)
at java.lang.ClassLoader.loadClass(ClassLoader.java:632)
at java.lang.ClassLoader.loadClass(ClassLoader.java:606)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1346)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1205)
at java.lang.Class.forNameImpl(Native Method)
at java.lang.Class.forName(Class.java:130)
at javax.xml.ws.spi.Provider.<clinit>(Provider.java:55)
at java.lang.J9VMInternals.initializeImpl(Native Method)
at java.lang.J9VMInternals.initialize(J9VMInternals.java:196)
... 68 more
Further attempts to initialize this client results in:
2012-09-26 11:34:56,016 ERROR [TP-Processor7] com.xxx.xxx.client.MyServiceRequester#<init>(65): Error initialising MyServiceRequestProvider_Service
java.lang.NoClassDefFoundError: javax.xml.ws.spi.Provider (initialization failure)
at java.lang.J9VMInternals.initialize(J9VMInternals.java:134)
at javax.xml.ws.Service.<init>(Service.java:57)
...
It seems that there are some security issues within the metro Provider class.
I think the following snipped of the class javax.xml.ws.spi.Provider of metro is the source of the failure:
static {
Method tLoadMethod = null;
Method tIteratorMethod = null;
try {
Class<?> clazz = Class.forName("java.util.ServiceLoader");
tLoadMethod = clazz.getMethod("load", Class.class);
tIteratorMethod = clazz.getMethod("iterator");
} catch(ClassNotFoundException ce) {
// Running on Java SE 5
} catch(NoSuchMethodException ne) {
// Shouldn't happen
}
loadMethod = tLoadMethod;
iteratorMethod = tIteratorMethod;
}
It seems that instead of throwing an ClassNotFoundException the Classloader throws an SecurityException, which is not catched by the
static initializer.
What can be the cause of this behaviour (some policy settings?) and how can we prevent this. The application is running on our local test environment, and was running on the external environment too. The external provider denies any changes of the environment.
Is this behaviour IBM-JDK specific ?
EDIT:
I found the following in the JDK 5.0 API class java.security.SecureClassLoader :
SecurityException - if an attempt is made to add this class to a
package that contains classes that were signed by a different set of
certificates than this class, or if the class name begins with
"java.".
But souldn't this happen to all Metro clients running on tomcat ?
EDIT:
Thanks a lot for the advice! There is actually the path of a JDK 1.6 rt.jar in the classpath. And therefore the ServiceLoader class is found but not allowed to load within the Provider.
Thanks to Sean,
There actually was the path of a JDK 1.6 rt.jar in the classpath. And therefore the ServiceLoader class is found but not allowed to load within the Provider.
I am having trouble getting the Google Web Toolkit's History class to work in Internet Explorer, even though it works in Chrome, FF.
I created an app using GWT 2.0 about 12 months ago, and noticed it stopped working sometime. I stripped it back to just the very first class and it seems any time I call History.addValueChangeHandler, Internet Explorer crashes.
Here is the code:
package com.js.client;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.user.client.History;
/**
* Entry point classes define <code>onModuleLoad()</code>.
*/
public class Test implements EntryPoint, ValueChangeHandler<String>
{
/**
* This is the entry point method.
*/
public void onModuleLoad() {
History.addValueChangeHandler(this);
History.fireCurrentHistoryState();
}
public void onValueChange(ValueChangeEvent<String> event) {
Label loading = new Label( "Loading..." );
RootPanel.get().add( loading );
}
}
It's hard to believe this could crash, but here is the error:
18:50:52.407 [ERROR] [test] Unable to load module entry point class com.js.client.Test (see associated exception for details)
com.google.gwt.core.client.JavaScriptException: (Error): Access is denied.
description: Access is denied.
number: -2147024891
at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:195)
at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:120)
at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:507)
at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:264)
at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91)
at com.google.gwt.user.client.impl.HistoryImplIE6.getTokenElement(HistoryImplIE6.java)
at com.google.gwt.user.client.impl.HistoryImplIE6.init(HistoryImplIE6.java:80)
at com.google.gwt.user.client.History.<clinit>(History.java:63)
at com.js.client.Test.onModuleLoad(Test.java:24)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.google.gwt.dev.shell.ModuleSpace.onLoad(ModuleSpace.java:369)
at com.google.gwt.dev.shell.OophmSessionHandler.loadModule(OophmSessionHandler.java:185)
at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:380)
at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:222)
at java.lang.Thread.run(Unknown Source)
Any help would be appreciated. Thanks!
Is this IE7? Are you using a JSP/Servlet to render your home page? If yes ensure your servlet generates the history iframe/script code with double quotes and not single quotes.
I am having a jar archive environment which is gonna call my class in a folder like this:
java -jar "emarket.jar" ../tournament 100
My compiled class is deployed into the ../tournament folder, this command runs well.
After I changed my code to load a properties file, it gets the following exception message:
Exception in thread "main" java.security.AccessControlException: access denied (java.io.FilePermission agent.properties read)
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkRead(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at java.io.FileInputStream.<init>(Unknown Source)
at Agent10479475.getPropertiesFromConfigFile(Agent10479475.java:110)
at Agent10479475.<init>(Agent10479475.java:100)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at java.lang.Class.newInstance0(Unknown Source)
at java.lang.Class.newInstance(Unknown Source)
at emarket.client.EmarketSandbox.instantiateClientObjects(EmarketSandbox.java:92)
at emarket.client.EmarketSandbox.<init>(EmarketSandbox.java:27)
at emarket.client.EmarketSandbox.main(EmarketSandbox.java:166)
I am wondering why this security checking will fail. I issue the getPropertitiesFromConfigFile() function inside my class's default constructor, like this:
public class Agent10479475 extends AbstractClientAgent
{
//default constructor
public Agent10479475()
{
//set all properties to their default values in constructor
FT_THRESHOLD = 400;
FT_THRESHOLD_MARGIN = 50;
printOut("Now loading properties from a config file...", "");
getPropertiesFromConfigFile();
printOut("Finished loading","");
}
private void getPropertiesFromConfigFile()
{
Properties props = new Properties();
try
{
props.load(new FileInputStream("agent.properties"));
FT_THRESHOLD = Long.parseLong(props.getProperty("FT_THRESHOLD"));
FT_THRESHOLD_MARGIN = Long.parseLong(props.getProperty("FT_THRESHOLD_MARGIN "));
}
catch(java.io.FileNotFoundException fnfex)
{
printOut("CANNOT FIND PROPERTIES FILE :", fnfex);
}
catch(java.io.IOException ioex)
{
printOut("IOEXCEPTION OCCURED :", ioex);
}
}
}
My class is loading its own .properties file under the same folder. why would the Java environment complains about such a denial of access?
Must I config the emarket.client.EmarketSandbox class, which is not written by me and stored inside the emarket.jar, to access my agent.properties file?
Any hints or suggestions is much appreciated. Many thanks in advance.
Permissions are required to access the system properties files, and your code is clearly running in a sandbox that does not grant the permission. You either need to
modify the sandbox security rules to allow access to that file,
add a specific API you can call to pass the "agent.properties" file contents, or
find some other way to get the properties to your code that doesn't involve reading a file at all.
An example of the last might to pass the properties in the file as command line arguments, or put the file into your JAR file so that you can read it as a resource (modulo the security sandbox not blocking that as well.)
But it must be said that there is something weird about a JAR file that won't let you read files on your own machine. Why is it doing this? Is this a homework exercise ... about security managers, permissions, etc?
You can put the file "agent.properties" inside your jar and access it via getResourceAsStream. As I don't know your security policy in your sandbox in detail, that might work with the permissions or not.