Abhra Kar

Thanks a lot Tim, please provide the link posted in spring community so I can follow up.
Regards,
Abhra

Hi ,
          In my project @RolesAllowed is used as @RolesAllowed({ "EMPLOYEE }) for methods.But those methods also can be used with higher privilege roles like ADMIN, HR. In an enum roles are declared as ---

enum Role {        ADMIN("ADMIN", 3),        HR("HR", 2),        EMPLOYEE("EMPLOYEE", 1); ::::::::::::::::::::::::::::::::::::::::::::: }

It's a web project and sping core is used here.
What can be the possible ways these roles are applied internally for those methods?
Thanks

Thanks a lot Rob for the explanation.

Hi I need to access a private method String getFoo(X509Certificate cert) of A.java in junit testing in my project ,I have written the code like this –
Method privateMethod=null; Class[] paramVal = new Class[1]; paramVal[0] = X509Certificate.class; try { privateMethod = A.class.getDeclaredMethod("getFoo", paramVal); } catch (NoSuchMethodException | SecurityException e) { e.printStackTrace(); } privateMethod.setAccessible(true);

I am getting an error when running ant test

C:\Ajava:22: warning: [rawtypes] found raw type: Class
   [javac]             Class[] paramVal = new Class[1];
   [javac]             ^
   [javac]   missing type arguments for generic class Class<T>
   [javac]   where T is a type-variable:
   [javac]     T extends Object declared in class Class
   [javac] C:\A.java:22: warning: [rawtypes] found raw type: Class
   [javac]             Class[] paramVal= new Class[1];
   [javac]                                     ^
   [javac]   missing type arguments for generic class Class<T>
   [javac]   where T is a type-variable:
   [javac]     T extends Object declared in class Class
   [javac] error: warnings found and -Werror specified
   [javac] 1 error
   [javac] 2 warnings

What will be the solution for this?
Thanks

Thanks a lot Matt for the clarification

I removed Thread.sleep(Integer.MAX_VALUE); and related interrupt call.It prints fine.But the same questions remain same--

Question 1> Why Thread.sleep(1000L) is required at line 13?If we don't mention this then in the execution I can see only Even Thread print 20 in eclipse output, nothing else.Why this is happening?
Question 2> After completion of printing 1 to 20 properly how I should stop the execution of the program?



public class PrintOddEvenUsingInterrupt { public static volatile int count; public static void main(String[] args) throws InterruptedException { Thread oddThread = new Thread(new OddInterruptThread(), "Odd Thread "); Thread evenThread = new Thread(new EvenInterruptThread(), "Even Thread "); oddThread.start(); evenThread.start(); for (int i = 0; i < 20; i++) { count++; Thread.sleep(1000L);//Why this is required? } } static class OddInterruptThread implements Runnable { public void run() { int oldNum = 0; while (true) { if (oldNum != count && count % 2 == 1) { System.out.println(Thread.currentThread().getName() + " prints " + count); oldNum = count; } } } } static class EvenInterruptThread implements Runnable { public void run() { int oldNum = 0; while (true) { if (oldNum != count && count % 2 == 0) { System.out.println(Thread.currentThread().getName() + " prints " + count); oldNum = count; } } } } }

Hi,
    I am brushing my thread knowledge.I tried to print even odd numbers using interrupt() method.I took reference from internet and wrote the below code--
public class PrintOddEvenUsingInterrupt { public static volatile int count; public static void main(String[] args) throws InterruptedException { Thread oddThread = new Thread(new OddInterruptThread(), "Odd Thread "); Thread evenThread = new Thread(new EvenInterruptThread(), "Even Thread "); oddThread.start(); evenThread.start(); for (int i = 0; i < 20; i++) { count++; oddThread.interrupt(); evenThread.interrupt(); Thread.sleep(1000L);//Why this is required? } } static class OddInterruptThread implements Runnable { public void run() { int oldNum = 0; while (true) { try { Thread.sleep(Integer.MAX_VALUE); } catch (InterruptedException e) { } if (oldNum != count && count % 2 == 1) { System.out.println(Thread.currentThread().getName() + " prints " + count); oldNum = count; } } } } static class EvenInterruptThread implements Runnable { public void run() { int oldNum = 0; while (true) { try { Thread.sleep(Integer.MAX_VALUE); } catch (InterruptedException e) { } if (oldNum != count && count % 2 == 0) { System.out.println(Thread.currentThread().getName() + " prints " + count); oldNum = count; } } } } } <br /> <br /> Question 1> Why Thread.sleep(1000L) is required at line 15?If we don't mention this then in the execution I can see only Even Thread print 20, nothing else.Why this is happening?
Question 2> After completion of printing 1 to 20 properly how I should stop the execution of the program?

Thanks

Hi,
     I am new to CXF and SOAP web services. I need to migrate from CXF2.x to 3.1.x in my project.SOAP is only using in the project.I copied all the jars of cxf 3.1.x to my project lib directory.So jar related no issue is there,
ant is building the project properly.But I have abc.wsdl. From this wsdl java classes were generating what mentioned in the wsdl:portType tag before migration.If Abcd is mentioned in wsdl:portType then
Abcd.java was genererting.

After upgraded to 3.1.x , java classes are generating based on xs:element tag.

Ex: <xs:element name="Aaa" type="tns:aaa"/>
So Aaa.java is generated.WSDL has many <xs:element name=... tag , so many java classes are generating, which is not the requirement. Abcd.java is not generating so SOAP call is failing. >


Below code is mentioned in the build.xml to convert from WSDLToJava ---
        <target name="wsdl-to-java" depends="...........">    <mkdir dir="build/gen-src"/>    <copy file="resources/wsdl/abc.wsdl" todir="build"/>     <java classname="org.apache.cxf.tools.wsdlto.WSDLToJava" fork="true">          <arg value="-exsh"/>          <arg value="true"/>          <arg value="-d"/>          <arg value="build/gen-src"/>          <arg value="resources/wsdl/abc.wsdl"/>          <classpath>            <fileset dir="lib">              <include name="*.jar"/>            </fileset>          </classpath>        </java>


What change/steps I need to do to generate java classes properly from WSDL.

Thanks

Hi Junilu,
               Thanks for the idea. My knowledge limited to wait, notify , coundownlatch , cyclicbarrier .Semhaphoe and mutex still I haven't studied.I will check those and get back for any query.

Thanks
Abhra

That's true. But is there any option so that we can achieve this.

Hi ,

I have two threads, say Thread-1(print 1) and Thread-2(print 2). How I can call them in loop such that they will execute alternatively,
Output---  1 2 1 2 1 2 .....

Below code give me a output ----- 1 2 2 2 2 2 1 and then release the lock but no thread available to get the lock .

public class ThreadTest { public static void main(String[] args) throws InterruptedException { Count count = new Count(); Thread t1 = new Thread(new Thread1(count)); t1.setPriority(5); Thread t2 = new Thread(new Thread2(count)); t2.setPriority(10); t1.start(); t2.start(); } } class Thread1 implements Runnable { Count count = null; Thread1(Count count) { this.count = count; } public void run() { synchronized (count) { for (int i = 0; i < 5; i++) { count.print1(); try { count.wait(); } catch (InterruptedException e) { } } } } } class Thread2 implements Runnable { Count count = null; Thread2(Count count) { this.count = count; } public void run() { for(int i=0;i<5;i++){ synchronized (count) { count.print2(); count.notify(); } } } } class Count { void print1() { System.out.println("1"); } void print2() { System.out.println("2"); } }

How we I can modify the code ?
Thanks

oh yes , got clear
Thanks a lot Rob

Hi,
    I am executing the below code and get output like ---
1
2
java.lang.IllegalMonitorStateException
at java.lang.Object.notify(Native Method)
at THREAD.Thread2.run(ThreadTest.java:42)
at java.lang.Thread.run(Unknown Source)

wait() and nofity() is calling from synchronize block then why this exception is coming?

public class ThreadTest { public static void main(String[] args) throws InterruptedException { Count count = new Count(); Thread t1 = new Thread(new Thread1(count)); Thread t2 = new Thread(new Thread2(count)); t1.start(); t2.start(); } } class Thread1 implements Runnable { Count count = null; Thread1(Count count) { this.count = count; } public void run() { synchronized (count) { count.print1(); try { wait(); } catch (InterruptedException e) { } } } } class Thread2 implements Runnable { Count count = null; Thread2(Count count) { this.count = count; } public void run() { synchronized (count) { count.print2(); notify(); } } } class Count { void print1() { System.out.println("1"); } void print2() { System.out.println("2"); } }

Thanks