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This closes #4413

This commit is contained in:
Clebert Suconic 2023-05-26 16:50:42 -04:00
parent 15aafe0b70 88f9fa494b
commit f5b717bc57
7 changed files with 465 additions and 18 deletions
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16
artemis-journal/src/main/java/org/apache/activemq/artemis/core/io/buffer/TimedBuffer.java
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@ -271,9 +271,10 @@ public final class TimedBuffer extends CriticalComponentImpl {
if (sync) { if (sync) {
pendingSync = true; pendingSync = true;
startSpin();
} }
startSpin();
} }
} }
} }
@ -293,9 +294,10 @@ public final class TimedBuffer extends CriticalComponentImpl {
if (sync) { if (sync) {
pendingSync = true; pendingSync = true;
startSpin();
} }
startSpin();
} }
} }
} }
@ -436,12 +438,12 @@ public final class TimedBuffer extends CriticalComponentImpl {
boolean useSleep = true; boolean useSleep = true;
while (!closed) { while (!closed) {
// We flush on the timer if there are pending syncs there and we've waited at least one // We flush on the timer if there are pending syncs there or we've waited at least one
// timeout since the time of the last flush. // timeout since the time of the last flush.
// Effectively flushing "resets" the timer // Effectively flushing "resets" the timer
// On the timeout verification, notice that we ignore the timeout check if we are using sleep // On the timeout verification, notice that we ignore the timeout check if we are using sleep
if (pendingSync) { if (pendingSync || System.nanoTime() - lastFlushTime > timeout) {
if (useSleep) { if (useSleep) {
// if using sleep, we will always flush // if using sleep, we will always flush
lastFlushTime = System.nanoTime(); lastFlushTime = System.nanoTime();
@ -458,7 +460,7 @@ public final class TimedBuffer extends CriticalComponentImpl {
useSleep = sleepIfPossible(timeToSleep); useSleep = sleepIfPossible(timeToSleep);
} }
} }
} else if (bufferObserver != null && System.nanoTime() - lastFlushTime > timeout) { } else if (bufferObserver != null) {
lastFlushTime = System.nanoTime(); lastFlushTime = System.nanoTime();
// if not using flush we will spin and do the time checks manually // if not using flush we will spin and do the time checks manually
flush(); flush();

1
tests/smoke-tests/src/test/java/org/apache/activemq/artemis/tests/smoke/infinite/InfiniteRedeliverySmokeTest.java
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@ -146,7 +146,6 @@ public class InfiniteRedeliverySmokeTest extends SmokeTestBase {
// it should be max 10 actually, I'm just leaving some space for future changes, // it should be max 10 actually, I'm just leaving some space for future changes,
// as the real test I'm after here is the broker should clean itself up // as the real test I'm after here is the broker should clean itself up
Wait.assertTrue(() -> fileFactory.listFiles("amq").size() <= 20); Wait.assertTrue(() -> fileFactory.listFiles("amq").size() <= 20);
Assert.assertTrue("there are too many files created", numberOfFiles <= 20);
} }
} }
} }

25
tests/soak-tests/pom.xml
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@ -243,6 +243,31 @@
</args> </args>
</configuration> </configuration>
</execution> </execution>
<!-- Used on JournalFlushInterruptTest -->
<execution>
<phase>test-compile</phase>
<id>create-interruptjf</id>
<goals>
<goal>create</goal>
</goals>
<configuration>
<role>amq</role>
<user>artemis</user>
<password>artemis</password>
<allowAnonymous>true</allowAnonymous>
<noWeb>false</noWeb>
<instance>${basedir}/target/interruptjf</instance>
<configuration>${basedir}/target/classes/servers/interruptjf</configuration>
<args>
<arg>--java-options</arg>
<arg>-Djava.rmi.server.hostname=localhost</arg>
<arg>--queues</arg>
<arg>JournalFlushInterruptTest</arg>
<arg>--name</arg>
<arg>interruptjf</arg>
</args>
</configuration>
</execution>
<!-- Used on LargeMessageInterruptTest --> <!-- Used on LargeMessageInterruptTest -->
<execution> <execution>
<phase>test-compile</phase> <phase>test-compile</phase>

262
tests/soak-tests/src/main/resources/servers/interruptjf/broker.xml Normal file
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@ -0,0 +1,262 @@
<?xml version='1.0'?>
<!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
-->
<configuration xmlns="urn:activemq"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xi="http://www.w3.org/2001/XInclude"
xsi:schemaLocation="urn:activemq /schema/artemis-configuration.xsd">
<core xmlns="urn:activemq:core" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="urn:activemq:core ">
<name>jfinterrupt</name>
<journal-sync-transactional>false</journal-sync-transactional>
<journal-sync-non-transactional>false</journal-sync-non-transactional>
<journal-buffer-timeout>10000</journal-buffer-timeout>
<persistence-enabled>true</persistence-enabled>
<!-- this could be ASYNCIO, MAPPED, NIO
ASYNCIO: Linux Libaio
MAPPED: mmap files
NIO: Plain Java Files
-->
<journal-type>ASYNCIO</journal-type>
<paging-directory>./data/paging</paging-directory>
<bindings-directory>./data/bindings</bindings-directory>
<journal-directory>./data/journal</journal-directory>
<large-messages-directory>./data/large-messages</large-messages-directory>
<!-- if you want to retain your journal uncomment this following configuration.
This will allow your system to keep 7 days of your data, up to 10G. Tweak it accordingly to your use case and capacity.
it is recommended to use a separate storage unit from the journal for performance considerations.
<journal-retention-directory period="7" unit="DAYS" storage-limit="10G">data/retention</journal-retention-directory>
You can also enable retention by using the argument journal-retention on the `artemis create` command -->
<journal-datasync>true</journal-datasync>
<journal-min-files>2</journal-min-files>
<journal-pool-files>10</journal-pool-files>
<journal-device-block-size>4096</journal-device-block-size>
<journal-file-size>10M</journal-file-size>
<!--
You can verify the network health of a particular NIC by specifying the <network-check-NIC> element.
<network-check-NIC>theNicName</network-check-NIC>
-->
<!--
Use this to use an HTTP server to validate the network
<network-check-URL-list>http://www.apache.org</network-check-URL-list> -->
<!-- <network-check-period>10000</network-check-period> -->
<!-- <network-check-timeout>1000</network-check-timeout> -->
<!-- this is a comma separated list, no spaces, just DNS or IPs
it should accept IPV6
Warning: Make sure you understand your network topology as this is meant to validate if your network is valid.
Using IPs that could eventually disappear or be partially visible may defeat the purpose.
You can use a list of multiple IPs, and if any successful ping will make the server OK to continue running -->
<!-- <network-check-list>10.0.0.1</network-check-list> -->
<!-- use this to customize the ping used for ipv4 addresses -->
<!-- <network-check-ping-command>ping -c 1 -t %d %s</network-check-ping-command> -->
<!-- use this to customize the ping used for ipv6 addresses -->
<!-- <network-check-ping6-command>ping6 -c 1 %2$s</network-check-ping6-command> -->
<!-- how often we are looking for how many bytes are being used on the disk in ms -->
<disk-scan-period>5000</disk-scan-period>
<!-- once the disk hits this limit the system will block, or close the connection in certain protocols
that won't support flow control. -->
<max-disk-usage>90</max-disk-usage>
<!-- should the broker detect dead locks and other issues -->
<critical-analyzer>true</critical-analyzer>
<critical-analyzer-timeout>120000</critical-analyzer-timeout>
<critical-analyzer-check-period>60000</critical-analyzer-check-period>
<critical-analyzer-policy>HALT</critical-analyzer-policy>
<!-- the system will enter into page mode once you hit this limit. This is an estimate in bytes of how much the messages are using in memory
The system will use half of the available memory (-Xmx) by default for the global-max-size.
You may specify a different value here if you need to customize it to your needs.
<global-max-size>100Mb</global-max-size> -->
<!-- the maximum number of messages accepted before entering full address mode.
if global-max-size is specified the full address mode will be specified by whatever hits it first. -->
<global-max-messages>-1</global-max-messages>
<acceptors>
<!-- useEpoll means: it will use Netty epoll if you are on a system (Linux) that supports it -->
<!-- amqpCredits: The number of credits sent to AMQP producers -->
<!-- amqpLowCredits: The server will send the # credits specified at amqpCredits at this low mark -->
<!-- amqpDuplicateDetection: If you are not using duplicate detection, set this to false
as duplicate detection requires applicationProperties to be parsed on the server. -->
<!-- amqpMinLargeMessageSize: Determines how many bytes are considered large, so we start using files to hold their data.
default: 102400, -1 would mean to disable large mesasge control -->
<!-- Note: If an acceptor needs to be compatible with HornetQ and/or Artemis 1.x clients add
"anycastPrefix=jms.queue.;multicastPrefix=jms.topic." to the acceptor url.
See https://issues.apache.org/jira/browse/ARTEMIS-1644 for more information. -->
<!-- Acceptor for every supported protocol -->
<acceptor name="artemis">tcp://0.0.0.0:61616?tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576;amqpMinLargeMessageSize=102400;protocols=CORE,AMQP,STOMP,HORNETQ,MQTT,OPENWIRE;useEpoll=true;amqpCredits=1000;amqpLowCredits=300;amqpDuplicateDetection=true;supportAdvisory=false;suppressInternalManagementObjects=false</acceptor>
<!-- AMQP Acceptor. Listens on default AMQP port for AMQP traffic.-->
<acceptor name="amqp">tcp://0.0.0.0:5672?tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576;protocols=AMQP;useEpoll=true;amqpCredits=1000;amqpLowCredits=300;amqpMinLargeMessageSize=102400;amqpDuplicateDetection=true</acceptor>
<!-- STOMP Acceptor. -->
<acceptor name="stomp">tcp://0.0.0.0:61613?tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576;protocols=STOMP;useEpoll=true</acceptor>
<!-- HornetQ Compatibility Acceptor. Enables HornetQ Core and STOMP for legacy HornetQ clients. -->
<acceptor name="hornetq">tcp://0.0.0.0:5445?anycastPrefix=jms.queue.;multicastPrefix=jms.topic.;protocols=HORNETQ,STOMP;useEpoll=true</acceptor>
<!-- MQTT Acceptor -->
<acceptor name="mqtt">tcp://0.0.0.0:1883?tcpSendBufferSize=1048576;tcpReceiveBufferSize=1048576;protocols=MQTT;useEpoll=true</acceptor>
</acceptors>
<security-settings>
<security-setting match="#">
<permission type="createNonDurableQueue" roles="amq"/>
<permission type="deleteNonDurableQueue" roles="amq"/>
<permission type="createDurableQueue" roles="amq"/>
<permission type="deleteDurableQueue" roles="amq"/>
<permission type="createAddress" roles="amq"/>
<permission type="deleteAddress" roles="amq"/>
<permission type="consume" roles="amq"/>
<permission type="browse" roles="amq"/>
<permission type="send" roles="amq"/>
<!-- we need this otherwise ./artemis data imp wouldn't work -->
<permission type="manage" roles="amq"/>
</security-setting>
</security-settings>
<address-settings>
<!-- if you define auto-create on certain queues, management has to be auto-create -->
<address-setting match="activemq.management#">
<dead-letter-address>DLQ</dead-letter-address>
<expiry-address>ExpiryQueue</expiry-address>
<redelivery-delay>0</redelivery-delay>
<!-- with -1 only the global-max-size is in use for limiting -->
<max-size-bytes>-1</max-size-bytes>
<message-counter-history-day-limit>10</message-counter-history-day-limit>
<address-full-policy>PAGE</address-full-policy>
<auto-create-queues>true</auto-create-queues>
<auto-create-addresses>true</auto-create-addresses>
</address-setting>
<!--default for catch all-->
<address-setting match="#">
<dead-letter-address>DLQ</dead-letter-address>
<expiry-address>ExpiryQueue</expiry-address>
<redelivery-delay>0</redelivery-delay>
<!-- if max-size-bytes and max-size-messages were both enabled, the system will enter into paging
based on the first attribute to hits the maximum value -->
<!-- limit for the address in bytes, -1 means unlimited -->
<max-size-bytes>-1</max-size-bytes>
<!-- limit for the address in messages, -1 means unlimited -->
<max-size-messages>1000</max-size-messages>
<!-- the size of each file on paging. Notice we keep files in memory while they are in use.
Lower this setting if you have too many queues in memory. -->
<page-size-bytes>10M</page-size-bytes>
<!-- limit how many messages are read from paging into the Queue. -->
<max-read-page-messages>-1</max-read-page-messages>
<!-- limit how much memory is read from paging into the Queue. -->
<max-read-page-bytes>20M</max-read-page-bytes>
<message-counter-history-day-limit>10</message-counter-history-day-limit>
<address-full-policy>PAGE</address-full-policy>
<auto-create-queues>true</auto-create-queues>
<auto-create-addresses>true</auto-create-addresses>
<auto-delete-queues>false</auto-delete-queues>
<auto-delete-addresses>false</auto-delete-addresses>
</address-setting>
</address-settings>
<addresses>
<address name="DLQ">
<anycast>
<queue name="DLQ" />
</anycast>
</address>
<address name="ExpiryQueue">
<anycast>
<queue name="ExpiryQueue" />
</anycast>
</address>
<address name="JournalFlushInterruptTest">
<anycast>
<queue name="JournalFlushInterruptTest" />
</anycast>
</address>
</addresses>
<!-- Uncomment the following if you want to use the Standard LoggingActiveMQServerPlugin pluging to log in events
<broker-plugins>
<broker-plugin class-name="org.apache.activemq.artemis.core.server.plugin.impl.LoggingActiveMQServerPlugin">
<property key="LOG_ALL_EVENTS" value="true"/>
<property key="LOG_CONNECTION_EVENTS" value="true"/>
<property key="LOG_SESSION_EVENTS" value="true"/>
<property key="LOG_CONSUMER_EVENTS" value="true"/>
<property key="LOG_DELIVERING_EVENTS" value="true"/>
<property key="LOG_SENDING_EVENTS" value="true"/>
<property key="LOG_INTERNAL_EVENTS" value="true"/>
</broker-plugin>
</broker-plugins>
-->
</core>
</configuration>

52
tests/soak-tests/src/main/resources/servers/interruptjf/management.xml Normal file
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@ -0,0 +1,52 @@
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<!--
~ Licensed to the Apache Software Foundation (ASF) under one or more
~ contributor license agreements. See the NOTICE file distributed with
~ this work for additional information regarding copyright ownership.
~ The ASF licenses this file to You under the Apache License, Version 2.0
~ (the "License"); you may not use this file except in compliance with
~ the License. You may obtain a copy of the License at
~
~ http://www.apache.org/licenses/LICENSE-2.0
~
~ Unless required by applicable law or agreed to in writing, software
~ distributed under the License is distributed on an "AS IS" BASIS,
~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
~ See the License for the specific language governing permissions and
~ limitations under the License.
-->
<management-context xmlns="http://activemq.apache.org/schema">
<connector connector-port="1099"/>
<authorisation>
<allowlist>
<entry domain="hawtio"/>
</allowlist>
<default-access>
<access method="list*" roles="amq"/>
<access method="get*" roles="amq"/>
<access method="is*" roles="amq"/>
<access method="set*" roles="amq"/>
<access method="*" roles="amq"/>
</default-access>
<role-access>
<match domain="org.apache.activemq.artemis">
<access method="list*" roles="amq"/>
<access method="get*" roles="amq"/>
<access method="is*" roles="amq"/>
<access method="set*" roles="amq"/>
<!-- Note count and browse are need to access the browse tab in the console-->
<access method="browse*" roles="amq"/>
<access method="count*" roles="amq"/>
<access method="*" roles="amq"/>
</match>
<!--example of how to configure a specific object-->
<!--<match domain="org.apache.activemq.artemis" key="subcomponent=queues">
<access method="list*" roles="view,update,amq"/>
<access method="get*" roles="view,update,amq"/>
<access method="is*" roles="view,update,amq"/>
<access method="set*" roles="update,amq"/>
<access method="*" roles="amq"/>
</match>-->
</role-access>
</authorisation>
</management-context>

90
tests/soak-tests/src/test/java/org/apache/activemq/artemis/tests/soak/interrupt/JournalFlushInterruptTest.java Normal file
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@ -0,0 +1,90 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.activemq.artemis.tests.soak.interrupt;
import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.MessageProducer;
import javax.jms.Session;
import java.lang.invoke.MethodHandles;
import java.util.concurrent.TimeUnit;
import org.apache.activemq.artemis.api.config.ActiveMQDefaultConfiguration;
import org.apache.activemq.artemis.api.core.RoutingType;
import org.apache.activemq.artemis.api.core.management.ObjectNameBuilder;
import org.apache.activemq.artemis.api.core.management.QueueControl;
import org.apache.activemq.artemis.tests.soak.SoakTestBase;
import org.apache.activemq.artemis.tests.util.CFUtil;
import org.apache.activemq.artemis.tests.util.Wait;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class JournalFlushInterruptTest extends SoakTestBase {
public static final String SERVER_NAME_0 = "interruptjf";
private static final String JMX_SERVER_HOSTNAME = "localhost";
private static final int JMX_SERVER_PORT_0 = 1099;
private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
static String liveURI = "service:jmx:rmi:///jndi/rmi://" + JMX_SERVER_HOSTNAME + ":" + JMX_SERVER_PORT_0 + "/jmxrmi";
static ObjectNameBuilder liveNameBuilder = ObjectNameBuilder.create(ActiveMQDefaultConfiguration.getDefaultJmxDomain(), "jfinterrupt", true);
Process serverProcess;
@Before
public void before() throws Exception {
cleanupData(SERVER_NAME_0);
serverProcess = startServer(SERVER_NAME_0, 0, 30000);
disableCheckThread();
}
private void killProcess(Process process) throws Exception {
Runtime.getRuntime().exec("kill -9 " + process.pid());
}
@Test
public void testInterruptJF() throws Throwable {
final ConnectionFactory factory = CFUtil.createConnectionFactory("CORE", "tcp://localhost:61616");
final String queueName = "JournalFlushInterruptTest";
final int messageCount = 100;
try (Connection connection = factory.createConnection()) {
Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
MessageProducer producer = session.createProducer(session.createQueue(queueName));
for (int i = 0; i < messageCount; i++) {
producer.send(session.createTextMessage("MessageCount: " + i));
}
}
QueueControl queueControl = getQueueControl(liveURI, liveNameBuilder, queueName, queueName, RoutingType.ANYCAST, 5000);
Wait.assertEquals(messageCount, queueControl::getMessageCount, 5000);
Thread.sleep(100);
killProcess(serverProcess);
Assert.assertTrue(serverProcess.waitFor(1, TimeUnit.MINUTES));
serverProcess = startServer(SERVER_NAME_0, 0, 0);
waitForServerToStart("tcp://localhost:61616", "artemis", "artemis", 5000);
queueControl = getQueueControl(liveURI, liveNameBuilder, queueName, queueName, RoutingType.ANYCAST, 5000);
Wait.assertEquals(messageCount, queueControl::getMessageCount);
}
}

37
tests/unit-tests/src/test/java/org/apache/activemq/artemis/tests/unit/core/journal/impl/TimedBufferTest.java
View File

@ -34,6 +34,7 @@ import org.apache.activemq.artemis.core.journal.EncodingSupport;
import org.apache.activemq.artemis.tests.util.ActiveMQTestBase; import org.apache.activemq.artemis.tests.util.ActiveMQTestBase;
import org.apache.activemq.artemis.utils.Env; import org.apache.activemq.artemis.utils.Env;
import org.apache.activemq.artemis.utils.ReusableLatch; import org.apache.activemq.artemis.utils.ReusableLatch;
import org.apache.activemq.artemis.utils.Wait;
import org.junit.Assert; import org.junit.Assert;
import org.junit.Test; import org.junit.Test;
import org.slf4j.Logger; import org.slf4j.Logger;
@ -180,7 +181,7 @@ public class TimedBufferTest extends ActiveMQTestBase {
// simulating a low load period // simulating a low load period
timedBuffer.addBytes(buff, true, callback); timedBuffer.addBytes(buff, true, callback);
Thread.sleep(1000); Thread.sleep(100);
timedBuffer.addBytes(buff, true, callback); timedBuffer.addBytes(buff, true, callback);
Assert.assertTrue(latchFlushed.await(5, TimeUnit.SECONDS)); Assert.assertTrue(latchFlushed.await(5, TimeUnit.SECONDS));
latchFlushed.setCount(5); latchFlushed.setCount(5);
@ -465,20 +466,36 @@ public class TimedBufferTest extends ActiveMQTestBase {
timedBuffer.setObserver(new TestObserver()); timedBuffer.setObserver(new TestObserver());
int x = 0; int x = 0;
byte[] bytes;
ActiveMQBuffer buff;
byte[] bytes = new byte[10]; for (int i = 0; i < 3; i++) {
bytes = new byte[10];
for (int j = 0; j < 10; j++) {
bytes[j] = ActiveMQTestBase.getSamplebyte(x++);
}
buff = ActiveMQBuffers.wrappedBuffer(bytes);
timedBuffer.checkSize(10);
timedBuffer.addBytes(buff, false, dummyCallback);
}
Thread.sleep(200);
int count = flushTimes.get();
Assert.assertTrue(count < 3);
bytes = new byte[10];
for (int j = 0; j < 10; j++) { for (int j = 0; j < 10; j++) {
bytes[j] = ActiveMQTestBase.getSamplebyte(x++); bytes[j] = ActiveMQTestBase.getSamplebyte(x++);
} }
ActiveMQBuffer buff = ActiveMQBuffers.wrappedBuffer(bytes); buff = ActiveMQBuffers.wrappedBuffer(bytes);
timedBuffer.checkSize(10); timedBuffer.checkSize(10);
timedBuffer.addBytes(buff, false, dummyCallback); timedBuffer.addBytes(buff, false, dummyCallback);
Thread.sleep(200); Wait.assertEquals(count + 1, () -> flushTimes.get(), 2000);
Assert.assertEquals(0, flushTimes.get());
bytes = new byte[10]; bytes = new byte[10];
for (int j = 0; j < 10; j++) { for (int j = 0; j < 10; j++) {
@ -492,17 +509,17 @@ public class TimedBufferTest extends ActiveMQTestBase {
Thread.sleep(500); Thread.sleep(500);
Assert.assertEquals(1, flushTimes.get()); Assert.assertEquals(count + 2, flushTimes.get());
ByteBuffer flushedBuffer = buffers.get(0); ByteBuffer flushedBuffer = buffers.get(0);
Assert.assertEquals(20, flushedBuffer.limit()); Assert.assertEquals(30, flushedBuffer.limit());
Assert.assertEquals(20, flushedBuffer.capacity()); Assert.assertEquals(30, flushedBuffer.capacity());
flushedBuffer.rewind(); flushedBuffer.rewind();
for (int i = 0; i < 20; i++) { for (int i = 0; i < 30; i++) {
Assert.assertEquals(ActiveMQTestBase.getSamplebyte(i), flushedBuffer.get()); Assert.assertEquals(ActiveMQTestBase.getSamplebyte(i), flushedBuffer.get());
} }
} finally { } finally {