Align the contents using af:panelGroupLayout

Want to align the contents using af:panelGroupLayout ?

Use the following code snippet to horizontally right align the contents:

<af:panelGroupLayout id="vinaypgl01" width="400px" layout="horizontal" halign="right">
<af:outputText id="vinayot01"> This line will be right aligned.</af:outputText>
</af:panelGroupLayout>

Use the following code snippet to horizontally center align the contents:

<af:panelGroupLayout id="vinaypgl01" width="400px" layout="horizontal" halign="center">
<af:outputText id="vinayot01"> This line will be center aligned.</af:outputText>
</af:panelGroupLayout>

AF:PanelGroupLayout not stretching to its full width

Want to stretch the contents to its full width using af:panelGroupLayout ?

Use the following code snippet to stretch the content to its full width:

<af:panelGroupLayout id="vinaypgl01" width="400px" styleClass="afStretchWidth">
<af:outputText id="vinayot01"> This line will not be wrapped, it will be in full width of the panel grid layout i.e. 400 pixels.</af:outputText>
</af:panelGroupLayout>

Use the following code snippet to arrange the content blocks horizontally:

<af:panelGroupLayout id="vinaypgl01" layout="horizontal">
<af:panelGroupLayout id="vinaypgl02" width="400px" styleClass="afStretchWidth">
<af:outputText id="vinayot01"> This is first block.</af:outputText>
</af:panelGroupLayout >
<af:panelGroupLayout id="vinaypgl03" width="400px" styleClass="afStretchWidth">
<af:outputText id="vinayot01"> This is another block.</af:outputText>
</af:panelGroupLayout>

</af:panelGroupLayout>

Use the following code snippet to arrange the content blocks vertically:

<af:panelGroupLayout id="vinaypgl01" layout="vertical">
<af:panelGroupLayout id="vinaypgl02" width="400px" styleClass="afStretchWidth">
<af:outputText id="vinayot01"> This is first block.</af:outputText>
</af:panelGroupLayout >
<af:panelGroupLayout id="vinaypgl03" width="400px" styleClass="afStretchWidth">
<af:outputText id="vinayot01"> This is another block.</af:outputText>
</af:panelGroupLayout >

</af:panelGroupLayout >

AF:GridCell not stretching to its width

When using the contents are wrapped even after giving the width.

To stretch the component to its full width of the cell use the following snapshot of code:

<af:panelGridLayout id="vinaypgl01" width="400px">
<af:gridRow id="vinaygr01">
<af:gridCell id="vinaygc01" halign="stretch" width="50%">
<af:outputText id="vinayot01"> This line will not be wrapped, it will be in full width of the panel grid layout i.e. 400 pixels.</af:outputText>
</af:gridCell>
</af:gridRow>
</af:panelGridLayout >

JDeveloper: An expected severe error has occured

Popup to show An expected severe error has occured in JDeveloper

The program may be unstable, which could result in data loss. Decide how you want to proceed and click OK.

• Save and exit
• Exit without saving
• Continue

Error details

Uncaught exception
java.lang.OutOfMemoryError: Java heap space
  j.util.Arrays.copyOf(Arrays.java:2882)
  j.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:100)
  j.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:390)
  j.lang.StringBuffer.append(StringBuffer.java:224)
  org.tmatesoft.svn.core.SVNErrorMessage.getFullMessage(SVNErrorMessage.java:257)
  org.tmatesoft.svn.core.internal.wc.SVNErrorManager.error(SVNErrorManager.java:58)
  org.tmatesoft.svn.core.internal.wc.admin.SVNAdminAreaFactory.open(SVNAdminAreaFactory.java:163)
  org.tmatesoft.svn.core.internal.wc.admin.SVNWCAccess.doOpen(SVNWCAccess.java:364)
  org.tmatesoft.svn.core.internal.wc.admin.SVNWCAccess.open(SVNWCAccess.java:272)
  org.tmatesoft.svn.core.internal.wc.admin.SVNWCAccess.open(SVNWCAccess.java:265)
  org.tmatesoft.svn.core.internal.wc.admin.SVNWCAccess.openAnchor(SVNWCAccess.java:145)
  org.tmatesoft.svn.core.wc.SVNStatusClient.doStatus(SVNStatusClient.java:320)
  org.tmatesoft.svn.core.javahl.SVNClientImpl.status(SVNClientImpl.java:296)
  org.tmatesoft.svn.core.javahl.SVNClientImpl.status(SVNClientImpl.java:278)
  org.tigris.subversion.svnclientadapter.javahl.AbstractJhlClientAdapter.getStatus(AbstractJhlClientAdapter.java:480)
  org.tigris.subversion.svnclientadapter.svnkit.SvnKitClientAdapter.getStatus(SvnKitClientAdapter.java:141)
  org.tigris.subversion.svnclientadapter.javahl.AbstractJhlClientAdapter.getStatus(AbstractJhlClientAdapter.java:466)
  o.ji.vcs.svn.SVNURLInfoCacheSimpleStrategy.getURLInfo(SVNURLInfoCacheSimpleStrategy.java:79)
  o.ji.vcs.svn.SVNURLInfoCache.getPropStatus(SVNURLInfoCache.java:59)
  o.ji.vcs.svn.SVNStatusResolver.getStatus(SVNStatusResolver.java:159)
  o.ji.vcs.svn.SVNStatusResolver.populateStatuses(SVNStatusResolver.java:82)
  o.ji.vcs.generic.GenericClient$2.getImpl(GenericClient.java:531)
  o.j.vcs.spi.VCSStatusCache.getValuesImpl(VCSStatusCache.java:31)
  o.j.vcs.spi.VCSURLBasedCache.getValuesImpl(VCSURLBasedCache.java:204)
  o.j.vcs.changelist.ChangeListLocalStatusCache$2.call(ChangeListLocalStatusCache.java:78)
  o.j.vcs.spi.VCSURLBasedCache.callUnderWriteLock(VCSURLBasedCache.java:224)
  o.j.vcs.changelist.ChangeListLocalStatusCache.getValuesImpl(ChangeListLocalStatusCache.java:73)
  o.j.vcs.spi.VCSURLBasedCache.getValues(VCSURLBasedCache.java:107)
  o.j.vcs.changelist.ChangeListEventQueue.filterByStatus(ChangeListEventQueue.java:513)
  o.j.vcs.changelist.ChangeListEventQueue.processRequeryEvent(ChangeListEventQueue.java:373)
  o.j.vcs.changelist.ChangeListEventQueue.processEvent(ChangeListEventQueue.java:258)
  o.j.vcs.changelist.ChangeListEventQueue.processEvents(ChangeListEventQueue.java:685)

When you get this error, probably there is an error with your application too, close the application and JDeveloper and start from scratch.

Tips to avoid this:
1. While working with JDeveloper, you need to close and open application so many times. When I want to delete an application, I will choose to Close Application rather from Jdeveloper and then delete the application folder physically later after closing JDeveloper.
2. After running JDeveloper for long, it starts consuming more memory, give it a break, close the JDeveloper and open it again.
3. Always refer the external jars as user library, create a library name to your physical path and then extend the library to add external jars to the classpath.