Alex Kruglov

Thanks, Rob!
It's what I needed to know.

Hi, everyone!

I have a following code:
public interface TaskResult<T> { T getResult(); void append(TaskResult<T> value); } public interface Task<T extends TaskResult<T>> { T execute(); List<Task><T ><T>> split(int parts); } public class TaskExecutor<T extends TaskResult><T>> { public T execute(Task<T> task) { //skipped } }

When I'm trying to implement this interfaces, for example this way:
public class BigDecimalResult implements TaskResult<BigDecimal>{ private BigDecimal result; public BigDecimalResult() { result = new BigDecimal(0L); } @Override public BigDecimal getResult() { return result; } @Override public void append(TaskResult<BigDecimal> value) { result = result.multiply(value.getResult()); } } public class ConcreteTask implements Task<BigDecimalResult> { @Override public BigDecimalResult execute() { //skipped } @Override public List<Task><BigDecimalResult>> split(int parts) { //skipped } }
I'm getting an error at line 21: type parameter BigDecimalResult is not within its bounds

Does anyone know what could be the problem?

Thanks in advance!

I have enabled JMX Connection in domain.xml:
<jmx-connector accept-all="true" address="0.0.0.0" auth-realm-name="admin-realm" enabled="true" name="system" port="8686" protocol="rmi_jrmp" security-enabled="false">
But this didn't help. I still can't connect to server with JConsole. Then I've found solution - I need to specify JVM properties in domain.xml to open 8686 port for remote connection. So I added this lines into java-config section:
<jvm-options>-Dcom.sun.management.jmxremote</jvm-options> <jvm-options>-Dcom.sun.management.jmxremote.port=8686</jvm-options> <jvm-options>-Dcom.sun.management.jmxremote.local.only=false</jvm-options> <jvm-options>-Dcom.sun.management.jmxremote.authenticate=false</jvm-options>
But now when I'm starting server, I'm getting following errors:

Could not load Logmanager "com.sun.enterprise.server.logging.ServerLogManager" java.lang.ClassNotFoundException: com.sun.enterprise.server.logging.ServerLogManager at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at java.util.logging.LogManager$1.run(LogManager.java:166) at java.security.AccessController.doPrivileged(Native Method) at java.util.logging.LogManager.(LogManager.java:156) at java.util.logging.Logger.getLogger(Logger.java:273) at sun.management.snmp.util.MibLogger.(MibLogger.java:57) at sun.management.snmp.util.MibLogger.(MibLogger.java:42) at sun.management.jmxremote.ConnectorBootstrap.(ConnectorBootstrap.java:760) at sun.management.Agent.startAgent(Agent.java:127) at sun.management.Agent.startAgent(Agent.java:239) javax.management.JMRuntimeException: Failed to load MBeanServerBuilder class com.sun.enterprise.admin.server.core.jmx.AppServerMBeanServerBuilder: java.lang.ClassNotFoundException: com.sun.enterprise.admin.server.core.jmx.AppServerMBeanServerBuilder at javax.management.MBeanServerFactory.checkMBeanServerBuilder(MBeanServerFactory.java:480) at javax.management.MBeanServerFactory.getNewMBeanServerBuilder(MBeanServerFactory.java:511) at javax.management.MBeanServerFactory.newMBeanServer(MBeanServerFactory.java:298) at javax.management.MBeanServerFactory.createMBeanServer(MBeanServerFactory.java:213) at javax.management.MBeanServerFactory.createMBeanServer(MBeanServerFactory.java:174) at sun.management.ManagementFactory.createPlatformMBeanServer(ManagementFactory.java:302) at java.lang.management.ManagementFactory.getPlatformMBeanServer(ManagementFactory.java:504) at sun.management.jmxremote.ConnectorBootstrap.initialize(ConnectorBootstrap.java:392) at sun.management.Agent.startAgent(Agent.java:127) at sun.management.Agent.startAgent(Agent.java:239) Caused by: java.lang.ClassNotFoundException: com.sun.enterprise.admin.server.core.jmx.AppServerMBeanServerBuilder at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at javax.management.MBeanServerFactory.loadBuilderClass(MBeanServerFactory.java:423) at javax.management.MBeanServerFactory.checkMBeanServerBuilder(MBeanServerFactory.java:465) ... 9 more Exception thrown by the agent : javax.management.JMRuntimeException: Failed to load MBeanServerBuilder class com.sun.enterprise.admin.server.core.jmx.AppServerMBeanServerBuilder: java.lang.ClassNotFoundException: com.sun.enterprise.admin.server.core.jmx.AppServerMBeanServerBuilder

How can I fix the problem?

Thanks in advance.

Hi!

I would like to monitor remote Glassfish v2.1 server with JConslole for example. As far as I know, I need to enable JMX Connector for this purpose.
I have enabled JMX Connector in Glassfish console and then have restarted server. (Configuration->Admin service-> system). But I still can't connect to my server.

Anyone can help?

Thanks in advance!

Hi guys!
We are developing J2EE application with NetBeans (GWT+Hibernate). After deployment on server some classes were not being updated. That's why application throws exceptions like "No such method"..
Does anyone have such promlems? How can I solve them?

Thanks in advance..

P.S.
1. NetBeans 6.5
2. Gassfish 9.1_02

Hi, guys!

I have two entities: the first is Publication, which is categorized by the second entity, Tag

Source code follows:
package mmobserver.entities; import java.io.Serializable; import java.sql.Time; import java.sql.Date; import java.util.HashSet; import java.util.Set; import javax.persistence.*; @Entity @Table(name = "PUBLICATIONS") @SecondaryTable(name = "PUBLICATION_CONTENTS", pkJoinColumns = @PrimaryKeyJoinColumn(name = "PUBLICATION_ID")) public class Publication implements Serializable { private Long id; private String title; private Set<Tag> tags = new HashSet<Tag>(); /* * Getters */ @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name = "PUBLICATION_ID", nullable = false, updatable = false) public Long getId() { return id; } @Column(name = "PUBLICATION_TITLE") public String getTitle() { return title; } @ManyToMany(fetch = FetchType.EAGER) @JoinTable(name = "TAGS_PUBLICATIONS", joinColumns = {@JoinColumn(name = "PUBLICATION_ID")}, inverseJoinColumns = {@JoinColumn(name = "TAG_ID")}) public Set<Tag> getTags() { return tags; } /* * Setters */ public void setTags(Set<Tag> tags) { this.tags = tags; } public void setTitle(String title) { this.title = title; } } }

package mmobserver.entities; import java.io.Serializable; import javax.persistence.*; @Entity @Table(name = "TAGS") public class Tag implements Serializable { private Long id; private String title; @Id @GeneratedValue(strategy = GenerationType.AUTO) @Column(name = "TAG_ID", nullable = false, updatable = false) public Long getId() { return id; } @Column(name = "TAG_TITLE", nullable = false) public String getTitle() { return title; } public void setId(Long id) { this.id = id; } public void setTitle(String title) { this.title = title; } }

I have to select publications with and without tags (LEFT OUTER JOIN) and then paginate these results with methods setFirstResult and setMaxResults.

1. If use like this
public List<Publication> findAll(LimitClause limitClause, OrderClause orderBy, PublicationFilter filter) { List<Publication> ret = new ArrayList<Publication>(); Criteria complexCriteria = QueryUtil.getSession(em).createCriteria(CLASS_CRITERIA); complexCriteria.setFirstResult(limitClause.getOffset()); complexCriteria.setMaxResults(limitClause.getLimit()); complexCriteria.createAlias("tags", "t"); complexCriteria.createAlias("massMedia", "mMedia"); /*here are some filters title, tags etc.. */ List<Criterion> filterCond = filter.getLikeProperties(); for (Criterion cr : filterCond) { complexCriteria.add(cr); } complexCriteria.setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY); ret = (List<Publication> :wink: complexCriteria.list(); return ret; }
This way I don't get publications without tags.

2. If use like this
public List<Publication> findAll(LimitClause limitClause, OrderClause orderBy, PublicationFilter filter) { List<Publication> ret = new ArrayList<Publication>(); Criteria complexCriteria = QueryUtil.getSession(em).createCriteria(CLASS_CRITERIA); complexCriteria.setFirstResult(limitClause.getOffset()); complexCriteria.setMaxResults(limitClause.getLimit()); complexCriteria.createAlias("tags", "t"[B], Criteria.LEFT_JOIN[/B]); complexCriteria.createAlias("massMedia", "mMedia"); /*here are some filters title, tags etc.. */ List<Criterion> filterCond = filter.getLikeProperties(); for (Criterion cr : filterCond) { complexCriteria.add(cr); } complexCriteria.setResultTransformer(Criteria.DISTINCT_ROOT_ENTITY); ret = (List<Publication> :wink: complexCriteria.list(); return ret; }
This way I get wrong pagination (because I setMaxResults and setFirstResult work for all result rows, not for publications)

Is there any solution to solve both problems? :roll:

Aamir Shah, what is a solution of your problem?

public class TextWrapLabel extends JLabel { TextWrapLabel(String string) { super(string); } public void setWrappedSize() { Font xx = getFont(); int fontHeight = getFontMetrics(xx).getHeight(); int stringWidth = getFontMetrics(xx).stringWidth(getText()); int linesCount = (int) Math.floor(stringWidth / getWidth()); linesCount = Math.max(1, linesCount + 2); setPreferredSize(new Dimension(100, (fontHeight+2)*linesCount)); } }