I've just installed the newest version of Netbeans ( 7.2 ) and tried to run an existing Swing project in it. I got the following exception:
StackTrace:
java.lang.ClassFormatError: Absent Code attribute in method that is not native or abstract in class file com/eositservices/eldorado/dialogs/zahlungverrechnung/model/InitDataList
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)
at java.lang.Class.getDeclaredMethod(Class.java:1935)
at java.awt.Component.isCoalesceEventsOverriden(Component.java:5975)
at java.awt.Component.access$500(Component.java:169)
at java.awt.Component$3.run(Component.java:5929)
at java.awt.Component$3.run(Component.java:5927)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Component.checkCoalescing(Component.java:5926)
at java.awt.Component.<init>(Component.java:5895)
at java.awt.Container.<init>(Container.java:249)
at javax.swing.JComponent.<init>(JComponent.java:570)
at javax.swing.JPanel.<init>(JPanel.java:65)
at javax.swing.JPanel.<init>(JPanel.java:92)
at javax.swing.JPanel.<init>(JPanel.java:100)
at com.eositservices.eldorado.masken.FormForderung.<init>(FormForderung.java:72)
at com.eositservices.eldorado.tabsheets.zahlung.TSZahlung.<init>(TSZahlung.java:183)
at com.eositservices.eldorado.masken.TFormForderung.addTabs(TFormForderung.java:366)
at com.eositservices.eldorado.masken.TFormForderung.initializeComponents(TFormForderung.java:275)
at com.eositservices.eldorado.masken.TFormForderung.configureComponents(TFormForderung.java:148)
at com.eositservices.bones.view.components.EOSInternalFrame.setUp(EOSInternalFrame.java:81)
at com.eositservices.eldorado.masken.TFormForderung.<init>(TFormForderung.java:113)
at com.eositservices.eldorado.main.MainFrame.oeffneForderung(MainFrame.java:577)
at com.eositservices.eldorado.main.MainFrame.showForderung(MainFrame.java:488)
at com.eositservices.eldorado.dev.QuickLogin.openForderung(QuickLogin.java:109)
at com.eositservices.eldorado.dev.QuickLogin.openInitialViews(QuickLogin.java:143)
at com.eositservices.eldorado.main.MainFrame$2.run(MainFrame.java:433)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:646)
at java.awt.EventQueue.access$000(EventQueue.java:84)
at java.awt.EventQueue$1.run(EventQueue.java:607)
at java.awt.EventQueue$1.run(EventQueue.java:605)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:616)
at com.eositservices.bones.view.GlobalHotkeyManager.dispatchEvent(GlobalHotkeyManager.java:163)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
The method in question looks like this:
#Override
public boolean add( InitData e ) {
boolean returnValue = super.add( e );
Collections.sort( this, c );
return returnValue;
}
The strange thing is that the exception only comes when I set the project properties to "Compile on save". When the option is unchecked it runs fine. We had no such problems in the previous versions of NetBeans. Is it just a coincidence and I should look elsewhere for the source of this error or has anyone had similar problems? Thanks in advance for your help.
It seems to be a bug in the NetBeans.
When this exception occurs, let's make an error in the code (e.g
#Override
**efefefefef**
public boolean add( InitData e ) {
boolean returnValue = super.add( e );
Collections.sort( this, c );
return returnValue;
}
)
save it and when the Netbeans displays the error, correct it back. I have tried to clear the Project, remove everything from the cache, but nothing happened. But this way helped on me.
Related
I'm using Hazelcast for an attempt of distributed locking. The locking seems to work fine but checking if a thread is the owner of a lock or that there even is a lock does not work the way I expect. Please help.
I expect that if I call hazelcastInstance.cpSubsystem.getLock(lockName).isLocked and het true as an answer that I then should be able to unlock it. But the stacktrace shows that it was not locked at all. Even though the check returns true.
I also tried locking on the IMap entry but that had the same result.
fun offer(workItemToOffer: WorkItem, expectedLockState: Boolean = true) {
// Check if the expected state equals to the actual state
val actualLockState = isLocked(workItemToOffer.groupName)
if (expectedLockState != actualLockState) {
log.warn { "offer: '${workItemToOffer.groupName}' should be in the ${if (expectedLockState) "locked" else "unlocked"} state but isn't" }
}
// Release the lock if I have it
if (actualLockState) {
log.info("offer: releasing '${workItemToOffer.groupName}'")
try {
// Release the lock for other instances to work in this same workItem
unlock(workItemToOffer.groupName)
} catch (e: Exception) {
log.error(e) { "offer: error unlocking '${workItemToOffer.groupName}', actualLockState=$actualLockState, expectedLockState=$expectedLockState" }
}
}
}
private fun tryLock(lockName: String) = hazelcastInstance.cpSubsystem.getLock(lockName).tryLock()
private fun unlock(lockName: String) = hazelcastInstance.cpSubsystem.getLock(lockName).unlock()
private fun isLocked(lockName: String) = hazelcastInstance.cpSubsystem.getLock(lockName).isLocked
So the first thing is is that I check if isLocked(). And then if it is locked I do the unlock. But during the unlock I get an exception.
java.lang.IllegalMonitorStateException: Current thread is not owner of the lock!
at com.hazelcast.cp.internal.datastructures.lock.LockService.release(LockService.java:119)
at com.hazelcast.cp.internal.datastructures.lock.operation.UnlockOp.run(UnlockOp.java:45)
at com.hazelcast.cp.internal.operation.unsafe.AbstractUnsafeRaftOp.call(AbstractUnsafeRaftOp.java:67)
at com.hazelcast.spi.impl.operationservice.impl.OperationRunnerImpl.call(OperationRunnerImpl.java:256)
at com.hazelcast.spi.impl.operationservice.impl.OperationRunnerImpl.run(OperationRunnerImpl.java:237)
at com.hazelcast.spi.impl.operationservice.impl.OperationRunnerImpl.run(OperationRunnerImpl.java:452)
at com.hazelcast.spi.impl.operationexecutor.impl.OperationThread.process(OperationThread.java:166)
at com.hazelcast.spi.impl.operationexecutor.impl.OperationThread.process(OperationThread.java:136)
at com.hazelcast.spi.impl.operationexecutor.impl.OperationThread.executeRun(OperationThread.java:123)
at com.hazelcast.internal.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:102)
at ------ submitted from ------.()
at com.hazelcast.internal.util.ExceptionUtil.cloneExceptionWithFixedAsyncStackTrace(ExceptionUtil.java:265)
at com.hazelcast.spi.impl.AbstractInvocationFuture.wrapRuntimeException(AbstractInvocationFuture.java:1922)
at com.hazelcast.spi.impl.AbstractInvocationFuture.wrapOrPeel(AbstractInvocationFuture.java:1903)
at com.hazelcast.spi.impl.AbstractInvocationFuture$ExceptionalResult.wrapForJoinInternal(AbstractInvocationFuture.java:1385)
at com.hazelcast.spi.impl.AbstractInvocationFuture.resolveAndThrowForJoinInternal(AbstractInvocationFuture.java:597)
at com.hazelcast.spi.impl.AbstractInvocationFuture.joinInternal(AbstractInvocationFuture.java:581)
at com.hazelcast.cp.internal.datastructures.lock.proxy.AbstractFencedLockProxy.unlock(AbstractFencedLockProxy.java:216)
at com.api.draak.service.WorkItemsService.unlock(WorkItemsService.kt:157)
at com.api.draak.service.WorkItemsService.offer(WorkItemsService.kt:82)
at com.api.draak.service.DraakService.processWorkItem(DraakService.kt:87)
at jdk.internal.reflect.GeneratedMethodAccessor183.invoke(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.base/java.lang.reflect.Method.invoke(Unknown Source)
at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:84)
at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.base/java.util.concurrent.FutureTask.runAndReset(Unknown Source)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.base/java.lang.Thread.run(Unknown Source)
Ok, I used the wrong call. I should have used isLockedByCurrentThread. Now I received the status of the lock for the whole cluster. But I needed the lock status for the current instance/thread.
#SuppressLint("SetTextI18n")
public void kocokAjah (View view) {
TextView textViewCard = findViewById(R.id.textViewCard);
relativeLayoutGone.setVisibility(View.INVISIBLE);
textViewCard.setVisibility(View.VISIBLE);
int MyFirstNumber = Integer.parseInt(editNumBegin.getText().toString());
int MyLastNumber = Integer.parseInt(editNumEnd.getText().toString());
ArrayList<String> kocok = new ArrayList<>();
for (int i = MyFirstNumber; i <= MyLastNumber; i++) {
kocok.add(Integer.toString(i));
Collections.shuffle(kocok);
textViewCard.setText((CharSequence) kocok);
}
}
}
This is my code to shuffle numbers in an ArrayList thean sen it to a TextView.
but whenever i the code is executed the app crash.
log :
FATAL EXCEPTION: main
Process: com.theinmark.fernando.kocoktestmainactivity, PID: 6506
java.lang.IllegalStateException: Could not execute method of the activity
at android.view.View$1.onClick(View.java:4020)
at android.view.View.performClick(View.java:4780)
at android.view.View$PerformClick.run(View.java:19866)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at android.view.View$1.onClick(View.java:4015)
at android.view.View.performClick(View.java:4780)
at android.view.View$PerformClick.run(View.java:19866)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
Caused by: java.lang.ClassCastException: java.util.ArrayList cannot be cast to java.lang.CharSequence
at com.theinmark.fernando.kocoktestmainactivity.MainActivity.kocokAjah(MainActivity.java:91)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at android.view.View$1.onClick(View.java:4015)
at android.view.View.performClick(View.java:4780)
at android.view.View$PerformClick.run(View.java:19866)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5254)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:903)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:698)
01-27 16:21:27.520 6506-6506/? I/Process: Sending signal. PID: 6506 SIG: 9
Any advice?
Thanks
In the middle of that long error message you will find this:
Caused by: java.lang.ClassCastException: java.util.ArrayList cannot be cast to java.lang.CharSequence
The problem is an ArrayList (regadless of what it contains) is not a CharSequence. If I remember correctly, Strings implement CharSequence, so maybe you'll want to build a string instead of a list of strings.
The quick and dirty way is to just "add" the strings together.
String kocok="";
for(...) {
kocok += Integer.toString(i);
}
The better way is to use a StringBuilder. But it's only really necessary if you add a lot of strings together.
Also note that you are calling setText on the text view inside the loop. You would typically to that after the loop.
If you want to shuffle the numbers before appending them to the string, I would recommend that you first add the numbers to an array, then after that loop shuffle once, then another loop to convert to a string, then after that set text on text field.
/* Pseudocode.*/
for (int i; ...) {
array.add(i);
}
Collections.shuffle(array);
String str=""
for (int i: array) { /* for each int i in array. */
str+=i;
}
textview.setText(str);
I am writing a Java agent which is supposed to be attached
to a running JVM. On that running JVM, there is a class already loaded and agent wants to instrument a method of that class.
The agent uses the ASM framework to add a try/catch block in the method content which is to be instrumented.
Below is the code I have written to add the try/catch block:
public void visitCode() {
if (mMethodName.equals("test")) {
mv.visitLabel(startFinally);
super.visitCode();
}
}
public void visitMaxs(int maxStack, int maxLocals) {
Label endFinally = new Label();
mv.visitTryCatchBlock(startFinally,endFinally,endFinally,
"java/lang/Exception");
mv.visitLabel(endFinally);
mv.visitVarInsn(ASTORE, 1);
mv.visitVarInsn(ALOAD, 1);
mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Exception",
"printStackTrace", "()V"););
}
I am using ClassWriter.COMPUTE_FRAMES in ClassWriter, but I'm getting an error:
java.lang.RuntimeException: JSR/RET are not supported with computeFrames option
at com.bea.objectweb.asm.Frame.a(Unknown Source)
at com.bea.objectweb.asm.MethodWriter.visitJumpInsn(Unknown Source)
at com.bea.objectweb.asm.ClassReader.a(Unknown Source)
I meet with exception during a transactional operation with spring-data-redis
RedisTemplate<String,Object> cartCache;
public void create(final Cartline cartline) {
Object txResults = cartCache.execute(new SessionCallback<List>() {
public List execute(RedisOperations operations) throws DataAccessException {
String cartId = cartline.getMemberId();
String cartlineId = cartline.getCartlineId();
operations.multi();
......
return operations.exec();
}
});
}
redis.clients.jedis.exceptions.JedisDataException: ERR EXEC without MULTI
at redis.clients.jedis.Protocol.processError(Protocol.java:115)
at redis.clients.jedis.Protocol.process(Protocol.java:133)
at redis.clients.jedis.Protocol.read(Protocol.java:202)
at redis.clients.jedis.Connection.readProtocolWithCheckingBroken(Connection.java:285)
at redis.clients.jedis.Connection.getRawObjectMultiBulkReply(Connection.java:230)
at redis.clients.jedis.Connection.getObjectMultiBulkReply(Connection.java:236)
at redis.clients.jedis.Transaction.exec(Transaction.java:38)
at org.springframework.data.redis.connection.jedis.JedisConnection.exec(JedisConnection.java:738)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.springframework.data.redis.core.CloseSuppressingInvocationHandler.invoke(CloseSuppressingInvocationHandler.java:57)
at com.sun.proxy.$Proxy512.exec(Unknown Source)
at org.springframework.data.redis.core.RedisTemplate$3.doInRedis(RedisTemplate.java:593)
at org.springframework.data.redis.core.RedisTemplate$3.doInRedis(RedisTemplate.java:591)
at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:190)
at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:152)
at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:140)
at org.springframework.data.redis.core.RedisTemplate.execRaw(RedisTemplate.java:591)
at org.springframework.data.redis.core.RedisTemplate.exec(RedisTemplate.java:578)
at com.znova.stone.cart.repository.impl.CartCacheImpl$1.execute(CartCacheImpl.java:51)
at com.znova.stone.cart.repository.impl.CartCacheImpl$1.execute(CartCacheImpl.java:1)
at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:217)
I read this post ERR EXEC without MULTI - Jedis which indicates a multi with exec, I also have redisTemplate.setEnableTransactionSupport(true); enabled, the error stood still.
I removed operation logic within the multi-exec block, I found there is no difference whatever is there, the exception happens event with a zero-operation block.
I had this same problem and fixed it by updating spring-data-redis from 1.4.2.RELEASE to 1.5.2.RELEASE.
I've been working on highlighting pdf using PDFClown and mostly its working fine however in few cases its giving the exception as provided in the below stacktrace :
Exception in thread "main" java.lang.IllegalArgumentException: Comparison method violates its general contract!
at java.util.TimSort.mergeLo(Unknown Source)
at java.util.TimSort.mergeAt(Unknown Source)
at java.util.TimSort.mergeCollapse(Unknown Source)
at java.util.TimSort.sort(Unknown Source)
at java.util.TimSort.sort(Unknown Source)
at java.util.Arrays.sort(Unknown Source)
at java.util.Collections.sort(Unknown Source)
at org.pdfclown.tools.TextExtractor.sort(TextExtractor.java:633)
at org.pdfclown.tools.TextExtractor.extract(TextExtractor.java:284)
at org.pdfclown.samples.cli.TextHighlightSample.run(TextHighlightSample.java:60)
at com.dhawan.poc.Highlight.main(Highlight.java:9)
Link to PDF File
Any idea how can I resolve this ?
Which version of PDFClown do you use? Your stack trace does not match the current code at http://svn.code.sf.net/p/clown/code/trunk/java/pdfclown.lib but instead contains the following comparison used for sorting:
public int compare(
ITextString textString1,
ITextString textString2
)
{
Rectangle2D box1 = textString1.getBox();
Rectangle2D box2 = textString2.getBox();
if(isOnTheSameLine(box1,box2))
{
/*
[FIX:55:0.1.3] In order not to violate the transitive condition, equivalence on x-axis
MUST fall back on y-axis comparison.
*/
int xCompare = Double.compare(box1.getX(), box2.getX());
if(xCompare != 0)
return xCompare;
}
return Double.compare(box1.getY(), box2.getY());
}
(http://svn.code.sf.net/p/clown/code/trunk/java/pdfclown.lib/src/org/pdfclown/tools/TextExtractor.java at revision 121)
This fix has been introduced on May 5th, 2014. If you have a PDFClown version from before 0.1.3 or a version 0.1.3 built before that date, you should update PDFClown.