Java OutofMemoryError with SGA_TARGET set

Hi,
I have activated the automatic memory management in my Oracle 10.2 installation according to those written in the following page, expecting my Java stored procedures will be able to use all the available memory without any explicit limits set.
http://www.oracle.com/technology/pub/articles/10gdba/week17_10gdba.html
I set my SGA_TARGET set to 800MB, however, during my tests where I was the only user in the system, I could never allocate than 256MB in my java procs and execution terminated with an OutOfMemoryError.
What else should I change to use the all memory that is available in the system for Java stored procedures?
Regards

Note that the 800M is shared dynamically between those possl not just java pool.
What is your physical memory size. Did you set any minimum for JAVA_POOL_SIZE or it is set to 0 after setting SGA_TARGET?
The best is to set them all to 0 and ensure that your SGA target of 800M will fit into the physical memory considering the memory required by the operating system and other running applciation on the system. If your Physocal RAM is 1GB and you set SGA target to 800M. It is risky.
BTW - how are you allocating the 256MB to your java procs? I ask because it may not even be related to the SGA_TARGET

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Hello together,
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Hi Joe
Here is the full stack trace:
org.springframework.orm.hibernate3.HibernateSystemException: Exception occurred inside setter of uk.co.cpp.ptarmigan.domain.npp.NppCoveredParty.assets; nested exception is org.hibernate.PropertyAccessException: Exception occurred inside setter of uk.co.cpp.ptarmigan.domain.npp.NppCoveredParty.assets
     at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:661)
     at org.springframework.orm.hibernate3.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:412)
     at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:379)
     at org.springframework.orm.hibernate3.HibernateTemplate.find(HibernateTemplate.java:872)
     at org.springframework.orm.hibernate3.HibernateTemplate.find(HibernateTemplate.java:868)
     at uk.co.cpp.ptarmigan.business.dao.hibernate.HibernateNppPolicyDAOImpl.findPolicyByPolicyNumber(HibernateNppPolicyDAOImpl.java:109)
     at uk.co.cpp.testptarmigan.PartyServiceTest.testFetchPhoneAngelUser(PartyServiceTest.java:79)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at org.springframework.test.ConditionalTestCase.runBare(ConditionalTestCase.java:76)
     at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:40)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at com.intellij.rt.execution.application.AppMain.main(AppMain.java:90)
Caused by: org.hibernate.PropertyAccessException: Exception occurred inside setter of uk.co.cpp.ptarmigan.domain.npp.NppCoveredParty.assets
     at org.hibernate.property.BasicPropertyAccessor$BasicSetter.set(BasicPropertyAccessor.java:65)
     at org.hibernate.tuple.entity.AbstractEntityTuplizer.setPropertyValues(AbstractEntityTuplizer.java:337)
     at org.hibernate.tuple.entity.PojoEntityTuplizer.setPropertyValues(PojoEntityTuplizer.java:200)
     at org.hibernate.persister.entity.AbstractEntityPersister.setPropertyValues(AbstractEntityPersister.java:3571)
     at org.hibernate.engine.TwoPhaseLoad.initializeEntity(TwoPhaseLoad.java:133)
     at org.hibernate.loader.Loader.initializeEntitiesAndCollections(Loader.java:854)
     at org.hibernate.loader.Loader.doQuery(Loader.java:729)
     at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
     at org.hibernate.loader.Loader.loadCollection(Loader.java:1994)
     at org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:36)
     at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:565)
     at org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:63)
     at org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1716)
     at org.hibernate.collection.AbstractPersistentCollection.forceInitialization(AbstractPersistentCollection.java:454)
     at org.hibernate.engine.StatefulPersistenceContext.initializeNonLazyCollections(StatefulPersistenceContext.java:844)
     at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:241)
     at org.hibernate.loader.Loader.doList(Loader.java:2213)
     at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104)
     at org.hibernate.loader.Loader.list(Loader.java:2099)
     at org.hibernate.hql.classic.QueryTranslatorImpl.list(QueryTranslatorImpl.java:912)
     at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
     at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)
     at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
     at org.springframework.orm.hibernate3.HibernateTemplate$30.doInHibernate(HibernateTemplate.java:881)
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     ... 28 more
Caused by: java.lang.reflect.InvocationTargetException
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at org.hibernate.property.BasicPropertyAccessor$BasicSetter.set(BasicPropertyAccessor.java:42)
     ... 52 more
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     at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:91)
     at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
     at org.hibernate.loader.Loader.loadCollection(Loader.java:2001)
     at org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:36)
     at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:565)
     at org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:63)
     at org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1716)
     at org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:344)
     at org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:86)
     at org.hibernate.collection.PersistentBag.toArray(PersistentBag.java:257)
     at java.util.Collections.sort(Collections.java:158)
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     ... 57 more
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     at weblogic.jdbc.rmi.SerialResultSet.next(SerialResultSet.java:84)
     at org.hibernate.loader.Loader.doQuery(Loader.java:697)
     at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
     at org.hibernate.loader.Loader.loadCollection(Loader.java:1994)
     ... 66 more
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     at weblogic.jdbc.wrapper.ResultSet_oracle_jdbc_driver_OracleResultSetImpl.next(Unknown Source)
     at weblogic.jdbc.rmi.internal.ResultSetImpl_weblogic_jdbc_wrapper_ResultSet_oracle_jdbc_driver_OracleResultSetImpl.next(Unknown Source)
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     at weblogic.jdbc.rmi.internal.ResultSetImpl_weblogic_jdbc_wrapper_ResultSet_oracle_jdbc_driver_OracleResultSetImpl_WLSkel.invoke(Unknown Source)
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Java.sql.SQLException: Result set already closed

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Our application is getting migrated to weblogic 10.3.5 and java 1.6.
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BFSCITWA170546|CSI_APP_ID_NA|ERROR |0|2011-09-06 18:02:16,464|[ACTIVE] ExecuteThread: '5' for queue: 'weblogic.kernel.Default (self-tuning)'|AbstractMessageConsumerMdb.java|:- [System] Failed processing message - rolling back
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Caused by: com.citi.eztop.ezengine.refactoring.common.exception.DAOException: Failed to queryForObject [WorkItem.getWorkItemById]
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     at com.citi.eztop.ezengine.refactoring.workpublishing.mdb.WorkPublisherQueueConsumerMDB.handleTextMessage(WorkPublisherQueueConsumerMDB.java:83)
     ... 8 more
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--- The error occurred in com/citi/eztop/ezengine/refactoring/common/persistence/sqlmapdao/sql/WorkItem.xml.
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     at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryWithCallback(GeneralStatement.java:185)
     at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryForObject(GeneralStatement.java:104)
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     at com.ibatis.sqlmap.engine.impl.SqlMapExecutorDelegate.queryForObject(SqlMapExecutorDelegate.java:541)
     at com.ibatis.sqlmap.engine.impl.SqlMapSessionImpl.queryForObject(SqlMapSessionImpl.java:106)
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     at com.ibatis.sqlmap.engine.execution.SqlExecutor.handleMultipleResults(SqlExecutor.java:301)
     at com.ibatis.sqlmap.engine.execution.SqlExecutor.executeQuery(SqlExecutor.java:190)
     at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.sqlExecuteQuery(GeneralStatement.java:205)
     at com.ibatis.sqlmap.engine.mapping.statement.GeneralStatement.executeQueryWithCallback(GeneralStatement.java:173)
     ... 17 more
Please help me to resolve this issue, as I am stuck with this.

Hi Joe,
Thanks alot for your reply, but the same code is working in weblogic 9.2 and it is in production as well.
I have even replicated the settings of 9.2 to 10.3, but still was not able to fnd out the issue.
Anyways will file an SR and provide it for you.
Thanks,
Addhankkiv

How does Java Handle String Literals Setting to Null for Identical Values ?

Suppose,
String s1="Java";
String s2="Java";
Now if i am not wrong only one value(bit pattern) "Java" exists in the heap and both s1 and s2 are pointing to it.
If i set s1 to null,
s1=null;
Won't s2 be affected (it is not getting affected actually..)
What could be the cause for this ?
Thanks in Advance.

amtidumpti wrote:
So is it something like ....
Variable         Memory Address   Value
s1                      0234234           "Java"
s2                      0234235           "Java"
is s1 is set to null :
Variable         Memory Address   Value
s1                      0234234           null
s2                      0234235           "Java"
No. In your model here, a variable's value is a String object. It's as if your entire house exists on my s1 paper, and an exact duplicate house with all the same contents exists on my s2 paper. In Java, no variable or expression ever holds an object. No value is ever an object.
It's more like this:
Variable         Memory Address         Value
s1                      0234234           11223344
s2                      0234235           11223344
is s1 is set to null :
Variable         Memory Address         Value
s1                      0234234           null
s2                      0234235           11223344and 11223344 is, roughly speaking, the "address" where the String object holding "Java" is stored.
And in both your model and mine, "Memory Address" is not the address that the variable holds. Rather, it is the address that corresponds to what we humans have named s1 and s2 for our convenience.
Edited by: jverd on Apr 10, 2009 11:43 AM

Example code for java compiler with a simple GUI

There is no question here (though discussion of the code is welcome).
/* Update 1 */
Now available as a stand alone or webstart app.! The STBC (see the web page*) has its own web page and has been improved to allow the user to browse to a tools.jar if one is not found on the runtime classpath, or in the JRE running the code.
* See [http://pscode.org/stbc/].
/* End: Update 1 */
This simple example of using the JavaCompiler made available in Java 1.6 might be of use to check that your SSCCE is actually what it claims to be!
If an SSCCE claims to display a runtime problem, it should compile cleanly when pasted into the text area above the Compile button. For a compilation problem, the code should show the same output errors seen in your own editor (at least until the last line of the output in the text area).
import java.awt.BorderLayout;
import java.awt.Font;
import java.awt.EventQueue;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JLabel;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.JButton;
import javax.swing.SwingWorker;
import javax.swing.border.EmptyBorder;
import java.util.ArrayList;
import java.net.URI;
import java.io.ByteArrayOutputStream;
import java.io.OutputStreamWriter;
import javax.tools.ToolProvider;
import javax.tools.JavaCompiler;
import javax.tools.SimpleJavaFileObject;
/** A simple Java compiler with a GUI. Java 1.6+.
@author Andrew Thompson
@version 2008-06-13
public class GuiCompiler extends JPanel {
/** Instance of the compiler used for all compilations. */
JavaCompiler compiler;
/** The name of the public class. For 'HelloWorld.java',
this would be 'HelloWorld'. */
JTextField name;
/** The source code to be compiled. */
JTextArea sourceCode;
/** Errors and messages from the compiler. */
JTextArea output;
JButton compile;
static int pad = 5;
GuiCompiler() {
    super( new BorderLayout(pad,pad) );
    setBorder( new EmptyBorder(7,4,7,4) );
/** A worker to perform each compilation. Disables
the GUI input elements during the work. */
class SourceCompilation extends SwingWorker<String, Object> {
    @Override
    public String doInBackground() {
      return compileCode();
    @Override
    protected void done() {
      try {
        enableComponents(true);
      } catch (Exception ignore) {
/** Construct the GUI. */
public void initGui() {
    JPanel input = new JPanel( new BorderLayout(pad,pad) );
    Font outputFont = new Font("Monospaced",Font.PLAIN,12);
    sourceCode = new JTextArea("Paste code here..", 15, 60);
    sourceCode.setFont( outputFont );
    input.add( new JScrollPane( sourceCode ),
      BorderLayout.CENTER );
    sourceCode.select(0,sourceCode.getText().length());
    JPanel namePanel = new JPanel(new BorderLayout(pad,pad));
    name = new JTextField(15);
    name.setToolTipText("Name of the public class");
    namePanel.add( name, BorderLayout.CENTER );
    namePanel.add( new JLabel("Class name"), BorderLayout.WEST );
    input.add( namePanel, BorderLayout.NORTH );
    compile = new JButton( "Compile" );
    compile.addActionListener( new ActionListener() {
        public void actionPerformed(ActionEvent ae) {
          (new SourceCompilation()).execute();
    input.add( compile, BorderLayout.SOUTH );
    this.add( input, BorderLayout.CENTER );
    output = new JTextArea("", 5, 40);
    output.setFont( outputFont );
    output.setEditable(false);
    this.add( new JScrollPane( output ), BorderLayout.SOUTH );
/** Compile the code in the source input area. */
public String compileCode() {
    output.setText( "Compiling.." );
    enableComponents(false);
    String compResult = null;
    if (compiler==null) {
      compiler = ToolProvider.getSystemJavaCompiler();
    if ( compiler!=null ) {
      String code = sourceCode.getText();
      String sourceName = name.getText().trim();
      if ( sourceName.toLowerCase().endsWith(".java") ) {
        sourceName = sourceName.substring(
          0,sourceName.length()-5 );
      JavaSourceFromString javaString = new JavaSourceFromString(
        sourceName,
        code);
      ArrayList<JavaSourceFromString> al =
        new ArrayList<JavaSourceFromString>();
      al.add( javaString );
      ByteArrayOutputStream baos = new ByteArrayOutputStream();
      OutputStreamWriter osw = new OutputStreamWriter( baos );
      JavaCompiler.CompilationTask task = compiler.getTask(
        osw,
        null,
        null,
        null,
        null,
        al);
      boolean success = task.call();
      output.setText( baos.toString().replaceAll("\t", " ") );
      compResult = "Compiled without errors: " + success;
      output.append( compResult );
      output.setCaretPosition(0);
    } else {
      output.setText( "No compilation possible - sorry!" );
      JOptionPane.showMessageDialog(this,
        "No compiler is available to this runtime!",
        "Compiler not found",
        JOptionPane.ERROR_MESSAGE
      System.exit(-1);
    return compResult;
/** Set the main GUI input components enabled
according to the enable flag. */
public void enableComponents(boolean enable) {
    compile.setEnabled(enable);
    name.setEnabled(enable);
    sourceCode.setEnabled(enable);
public static void main(String[] args) throws Exception {
    Runnable r = new Runnable() {
      public void run() {
        JFrame f = new JFrame("SSCCE text based compiler");
        f.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
        GuiCompiler compilerPane = new GuiCompiler();
        compilerPane.initGui();
        f.getContentPane().add(compilerPane);
        f.pack();
        f.setMinimumSize( f.getSize() );
        f.setLocationRelativeTo(null);
        f.setVisible(true);
    EventQueue.invokeLater(r);
* A file object used to represent source coming from a string.
* This example is from the JavaDocs for JavaCompiler.
class JavaSourceFromString extends SimpleJavaFileObject {
* The source code of this "file".
final String code;
* Constructs a new JavaSourceFromString.
* @param name the name of the compilation unit represented
    by this file object
* @param code the source code for the compilation unit
    represented by this file object
JavaSourceFromString(String name, String code) {
    super(URI.create(
      "string:///" +
      name.replace('.','/') +
      Kind.SOURCE.extension),
      Kind.SOURCE);
    this.code = code;
@Override
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
    return code;
}Edit 1:
Added..
        f.setMinimumSize( f.getSize() );Edited by: AndrewThompson64 on Jun 13, 2008 12:24 PM
Edited by: AndrewThompson64 on Jun 23, 2008 5:54 AM

kevjava wrote: Some things that I think would be useful:
Suggestions reordered to suit my reply..
kevjava wrote: 2. Line numbering, and/or a line counter so you can see how much scrolling you're going to be imposing on the forum readers.
Good idea, and since the line count is only a handful of lines of code to implement, I took that option. See the [line count|http://pscode.org/stbc/help.html#linecount] section of the (new) [STBC Help|http://pscode.org/stbc/help.html] page for more details. (Insert plaintiff whining about the arbitrary limits set - here).
I considered adding line length checking, but the [Text Width Checker|http://pscode.org/twc/] ('sold separately') already has that covered, and I would prefer to keep this tool more specific to compilation, which leads me to..
kevjava wrote: 1. A button to run the code, to see that it demonstrates the problem that you wish for the forum to solve...
Interesting idea, but I think that is better suited to a more full blown (but still relatively simple) GUId compiler. I am not fully decided that running a class is unsuited to STBC, but I am more likely to implement a clickable list of compilation errors, than a 'run' button.
On the other hand I am thinking the clickable error list is also better suited to an altogether more abled compiler, so don't hold your breath to see either in the STBC.
You might note I have not bothered to update the screenshots to show the line count label. That is because I am still considering error lists and running code, and open to further suggestion (not because I am just slack!). If the screenshots update to include the line count but nothing else, take that as a sign. ;-)
Thanks for your ideas. The line count alone is worth a few Dukes.

Starting Java Program with a bash Shell script

Hi !
I know this is a Linux query but I am putting it on this site to get different answers.
I want to start my Java program with a shell script. Can anybody give me a proper script to start my Java program?
I am using RH Linux 7.3 and JDK 1.4.
Can I start the Java program without starting the terminal? Just like the Sun One Studio4 'runide.sh' script.
Please help.
Bye Niteen

assuming you have your PATH and CLASSPATH variables set correctly, your script should look like this:
#!/bin/bash
cd <project_dir>
java <class> &
example:
#!/bin/bash
cd ~/projects
java project1.main_package.MainClass &
of course you could add some more elaborated stuff like compiling files before running the program, etc.
if you dont like terminals, try running "nautilus" (it's like Windows Explorer). i never use nautilus (especially for running scripts), so i cant guarantee it will work, although i dont see why it shouldnt...

[Java 3D] with JOGL

Hi,
I'm looking for tutorial to use Java 3D with JOGL.
I saw that seems to be possible on Java 3D website but I can't see any example (for Direct3D too).
Else, does anyone know if JOGL 2 is supported or if it will be supported in future ?
Thanks in advance.

Hi,
Java 3D is a high level 3D API in contrast to the low level 3D APIs OpenGL, Direct3D, and the corresponding wrapper APIs like JOGL and LWJGL.
The Java 3D engine can be run on any of these rendering pipelines: OpenGL, OpenGL/JOGL, or Direct3D. The default pipeline on Windows and Linux is OpenGL, on Mac OS X OpenGL/JOGL. If OpenGL is not available on Windows the engine switches to Direct3D. JOGL is used in Java 3D to avoid an implemention of the JNI/OpenGL-interface for Mac OS X as it is done for Windows and Linux. To choose OpenGL/JOGL on Windows/Linux the system variable 'j3d.rend' has to be set to 'jogl' and to choose Direct3D on Windows the system variable has to be set to 'd3d'. The default value is 'ogl'.
From the Java 3D application point of view the rendering pipeline is not relevant. The public Java 3D API is independant of the rendering pipeline. Only a few Appearance attributes are not supported on Direct3D.
So, all Java 3D tutorials, sample programs, or your applications can be run on all pipelines and can't be/don't have to be adapted to OpenGL, OpenGL/JOGL, or Direct3D. You don't have direct access to the pipelines from within your Java 3D application.
I'm not aware of any advantages for running Java 3D on the OpenGL/JOGL pipeline. On the Direct3D pipeline a faster Java 3D rendering can be achieved than on OpenGL.
JOGL 1.1.1a is the preferred release to run Java 3D. AFAIK JogAmp's JOGL 2 fork is not downwards compatible. I assume the current Java 3D release wouldn't benefit from it. I'm not aware of anyone working on a next Java 3D release which includes a future JOGL release. I started a Java 3D fork (JUniversal3D, not public yet) and I dropped JOGL as an intermediate API for accessing OpenGL.
Oracle.Sun stopped all its 3D engagements (Java 3D, JOGL, Wonderland) and hasn't made any substantial anouncement about 3D rendering capabilities for its future JavaFX 2.0. So, it's up to third parties to supply 3D APIs for Java desktop and web applications.
August

Oracle Application Server 10g R3 with patch set 10.1.3.5.0

Hi All,
Can anyone help me on this, When I install Oracle Application Server 10g Release 3 (10.1.3.1.0) and patch set 10.1.3.5.0 on Linux. I am not able to find forms and reports container.
This version doesn't support forms and reports or I have go OAS 10g R2 (10.1.2.0.2) with patch set 3 (10.1.2.3.0). What is the difference between these two releases.
Please help me.
Regards,

Hi James,
1)Yes it supports IE 8 .Please review the below link for certification details on browers :-
    http://www.oracle.com/technetwork/middleware/ias/downloads/as-certification-r2-101202-095871.html#BAJGCBEA
     Note: Oracle Application Server supports only those browsers.
2)Forms only support Windows 7 32 bit only.
    Please refer to the note:1292919.1 "Certification of Oracle Developer Suite 10g (10.1.2) on Windows 7 (32-bit)"
3)Could you provide more information of JVM because when you install 10gR2 it has JDK and JRE present in it.
Regards,
Prakash.

Java OutofMemoryError with SGA_TARGET set

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