SQL Developer running slow, possibly caused by Java Virtual Machine

Dear all
I am currently working with SQL Developer 1.5.1, connecting to an Oracle database 10.2.0.2 and it is taking about 10 minutes for SQL Developer to load. I believe the problem may be due to the Java Development kit. I upgraded to the latest version last week.
The versions running according to Java settings is:
1.6 1.6.0_15 http://java.sun.com/products/autodl/j2se C:\Program Files\Java\jre6\bin\javaw.exe true
1.6 1.6.0_07 http://java.sun.com/products/autodl/j2se C:\Program Files\Java\jre1.6.0_07\bin\javaw.exe true
1.4 1.4.2 http://java.sun.com/products/autodl/j2se C:\Program Files\Java\j2re1.4.2\bin\javaw.exe trueHaving looked at other posts on here I have run SQL Developer with the console and the messages in that are as follows:
Exception initializing 'oracle.ideimpl.searchbar.SearchBarAddin' in extension 'S
earch Bar': java.lang.NullPointerException
        at oracle.ideimpl.searchbar.ColorProvider.isFusionLAF(ColorProvider.java
:29)
        at oracle.ideimpl.searchbar.ColorProvider.updateUIManager(ColorProvider.
java:35)
        at oracle.ideimpl.searchbar.SearchBarAddin.initialize(SearchBarAddin.jav
a:37)
        at oracle.ideimpl.extension.AddinManagerImpl.initializeAddin(AddinManage
rImpl.java:405)
        at oracle.ideimpl.extension.AddinManagerImpl.initializeAddins(AddinManag
erImpl.java:214)
        at oracle.ideimpl.extension.AddinManagerImpl.initProductAndUserAddins(Ad
dinManagerImpl.java:128)
        at oracle.ide.IdeCore.initProductAndUserAddins(IdeCore.java:1804)
        at oracle.ide.IdeCore.startupImpl(IdeCore.java:1481)
        at oracle.ide.Ide.startup(Ide.java:662)
        at oracle.ideimpl.DefaultIdeStarter.startIde(DefaultIdeStarter.java:35)
        at oracle.ideimpl.Main.start(Main.java:110)
        at oracle.ideimpl.Main.main(Main.java:72)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at oracle.ide.boot.PCLMain.callMain(PCLMain.java:66)
        at oracle.ide.boot.PCLMain.main(PCLMain.java:58)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at oracle.classloader.util.MainClass.invoke(MainClass.java:128)
        at oracle.ide.boot.IdeLauncher.bootClassLoadersAndMain(IdeLauncher.java:
190)
        at oracle.ide.boot.IdeLauncher.launchImpl(IdeLauncher.java:90)
        at oracle.ide.boot.IdeLauncher.launch(IdeLauncher.java:66)
        at oracle.ide.boot.IdeLauncher.main(IdeLauncher.java:55)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at oracle.ide.boot.Launcher.invokeMain(Launcher.java:729)
        at oracle.ide.boot.Launcher.launchImpl(Launcher.java:115)
        at oracle.ide.boot.Launcher.launch(Launcher.java:68)
        at oracle.ide.boot.Launcher.main(Launcher.java:57)
Load: C:\Program Files\sqldeveloper\sqldeveloper\bin\jdev\extensions\GeoRaptorLi
bs\Settings.xml
java.io.FileNotFoundException: C:\Program Files\sqldeveloper\sqldeveloper\bin\jd
ev\extensions\GeoRaptorLibs\Settings.xml (The system cannot find the path specif
ied)
        at java.io.FileInputStream.open(Native Method)
        at java.io.FileInputStream.<init>(FileInputStream.java:106)
        at java.io.FileInputStream.<init>(FileInputStream.java:66)
        at sun.net.www.protocol.file.FileURLConnection.connect(FileURLConnection
.java:70)
        at sun.net.www.protocol.file.FileURLConnection.getInputStream(FileURLCon
nection.java:161)
        at java.net.URL.openStream(URL.java:1007)
        at oracle.xml.parser.v2.XMLReader.openURL(XMLReader.java:2590)
        at oracle.xml.parser.v2.XMLReader.pushXMLReader(XMLReader.java:236)
        at oracle.xml.parser.v2.XMLParser.parse(XMLParser.java:208)
        at oracle.xml.jaxp.JXDocumentBuilder.parse(JXDocumentBuilder.java:155)
        at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:172)
        at org.GeoRaptor.MainSettings.load(Unknown Source)
        at org.GeoRaptor.PreferenceAddin.initialize(Unknown Source)
        at oracle.ideimpl.extension.AddinManagerImpl.initializeAddin(AddinManage
rImpl.java:405)
        at oracle.ideimpl.extension.AddinManagerImpl.initializeAddins(AddinManag
erImpl.java:214)
        at oracle.ideimpl.extension.AddinManagerImpl.initProductAndUserAddins(Ad
dinManagerImpl.java:128)
        at oracle.ide.IdeCore.initProductAndUserAddins(IdeCore.java:1804)
        at oracle.ide.IdeCore.startupImpl(IdeCore.java:1481)
        at oracle.ide.Ide.startup(Ide.java:662)
        at oracle.ideimpl.DefaultIdeStarter.startIde(DefaultIdeStarter.java:35)
        at oracle.ideimpl.Main.start(Main.java:110)
        at oracle.ideimpl.Main.main(Main.java:72)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at oracle.ide.boot.PCLMain.callMain(PCLMain.java:66)
        at oracle.ide.boot.PCLMain.main(PCLMain.java:58)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at oracle.classloader.util.MainClass.invoke(MainClass.java:128)
        at oracle.ide.boot.IdeLauncher.bootClassLoadersAndMain(IdeLauncher.java:
190)
        at oracle.ide.boot.IdeLauncher.launchImpl(IdeLauncher.java:90)
        at oracle.ide.boot.IdeLauncher.launch(IdeLauncher.java:66)
        at oracle.ide.boot.IdeLauncher.main(IdeLauncher.java:55)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at oracle.ide.boot.Launcher.invokeMain(Launcher.java:729)
        at oracle.ide.boot.Launcher.launchImpl(Launcher.java:115)
        at oracle.ide.boot.Launcher.launch(Launcher.java:68)
        at oracle.ide.boot.Launcher.main(Launcher.java:57)
Exception initializing 'org.GeoRaptor.MenuControler' in extension 'GeoRaptor': o
racle.classloader.util.AnnotatedNoClassDefFoundError:
          Missing class: oracle.jdeveloper.cm.dt.browser.jdbc.TableNode
        Dependent class: org.GeoRaptor.MenuControler
                 Loader: main:11.0
            Code-Source: /C:/Program Files/sqldeveloper/sqldeveloper/extensions/
org.GeoRaptor.jar
          Configuration: system property C:\Program Files\sqldeveloper\sqldevelo
per\extensions\org.GeoRaptor.jar
The missing class is not available from any code-source or loader in the system.
        at oracle.classloader.PolicyClassLoader.handleClassNotFound (PolicyClass
Loader.java:2176) [/C:/Program%20Files/sqldeveloper/j2ee/home/lib/pcl.jar, by su
n.misc.Launcher$AppClassLoader@9627532]
        at oracle.classloader.PolicyClassLoader.internalLoadClass (PolicyClassLo
ader.java:1729) [/C:/Program%20Files/sqldeveloper/j2ee/home/lib/pcl.jar, by sun.
misc.Launcher$AppClassLoader@9627532]
        at oracle.classloader.PolicyClassLoader.access$000 (PolicyClassLoader.ja
va:143) [/C:/Program%20Files/sqldeveloper/j2ee/home/lib/pcl.jar, by sun.misc.Lau
ncher$AppClassLoader@9627532]
        at oracle.classloader.PolicyClassLoader$LoadClassAction.run (PolicyClass
Loader.java:331) [/C:/Program%20Files/sqldeveloper/j2ee/home/lib/pcl.jar, by sun
.misc.Launcher$AppClassLoader@9627532]
        at java.security.AccessController.doPrivileged (Native method) [unknown,
by unknown]
        at oracle.classloader.PolicyClassLoader.loadClass (PolicyClassLoader.jav
a:1688) [/C:/Program%20Files/sqldeveloper/j2ee/home/lib/pcl.jar, by sun.misc.Lau
ncher$AppClassLoader@9627532]
        at oracle.classloader.PolicyClassLoader.loadClass (PolicyClassLoader.jav
a:1670) [/C:/Program%20Files/sqldeveloper/j2ee/home/lib/pcl.jar, by sun.misc.Lau
ncher$AppClassLoader@9627532]
        at java.lang.ClassLoader.loadClassInternal (ClassLoader.java:319) [jre b
ootstrap, by jre.bootstrap:1.5.0_06]
        at org.GeoRaptor.MenuControler.initialize (Unknown source file) [/C:/Pro
gram Files/sqldeveloper/sqldeveloper/extensions/org.GeoRaptor.jar (from system p
roperty C:\Program Files\sqldeveloper\sqldeveloper\extensions\org.GeoRaptor.jar)
, by main:11.0]
        at oracle.ideimpl.extension.AddinManagerImpl.initializeAddin (AddinManag
erImpl.java:405) [/C:/Program Files/sqldeveloper/ide/lib/ideimpl.jar (from syste
m property PCLMain.createExtensionManagerLoader()), by main:11.0]
        at oracle.ideimpl.extension.AddinManagerImpl.initializeAddins (AddinMana
gerImpl.java:214) [/C:/Program Files/sqldeveloper/ide/lib/ideimpl.jar (from syst
em property PCLMain.createExtensionManagerLoader()), by main:11.0]
        at oracle.ideimpl.extension.AddinManagerImpl.initProductAndUserAddins (A
ddinManagerImpl.java:128) [/C:/Program Files/sqldeveloper/ide/lib/ideimpl.jar (f
rom system property PCLMain.createExtensionManagerLoader()), by main:11.0]
        at oracle.ide.IdeCore.initProductAndUserAddins (IdeCore.java:1804) [/C:/
Program Files/sqldeveloper/ide/extensions/oracle.ide.jar (from system property P
CLMain.createExtensionManagerLoader()), by main:11.0]
        at oracle.ide.IdeCore.startupImpl (IdeCore.java:1481) [/C:/Program Files
/sqldeveloper/ide/extensions/oracle.ide.jar (from system property PCLMain.create
ExtensionManagerLoader()), by main:11.0]
        at oracle.ide.Ide.startup (Ide.java:662) [/C:/Program Files/sqldeveloper
/ide/extensions/oracle.ide.jar (from system property PCLMain.createExtensionMana
gerLoader()), by main:11.0]
        at oracle.ideimpl.DefaultIdeStarter.startIde (DefaultIdeStarter.java:35)
[/C:/Program Files/sqldeveloper/ide/lib/ideimpl.jar (from system property PCLMa
in.createExtensionManagerLoader()), by main:11.0]
        at oracle.ideimpl.Main.start (Main.java:110) [/C:/Program Files/sqldevel
oper/ide/lib/ideimpl.jar (from system property PCLMain.createExtensionManagerLoa
der()), by main:11.0]
        at oracle.ideimpl.Main.main (Main.java:72) [/C:/Program Files/sqldevelop
er/ide/lib/ideimpl.jar (from system property PCLMain.createExtensionManagerLoade
r()), by main:11.0]
        at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native method) [unknown
, by unknown]
        at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl
.java:39) [unknown, by unknown]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAcce
ssorImpl.java:25) [unknown, by unknown]
        at java.lang.reflect.Method.invoke (Method.java:585) [unknown, by unknow
n]
        at oracle.ide.boot.PCLMain.callMain (PCLMain.java:66) [/C:/Program%20Fil
es/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@962753
2]
        at oracle.ide.boot.PCLMain.main (PCLMain.java:58) [/C:/Program%20Files/s
qldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@9627532]
        at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native method) [unknown
, by unknown]
        at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl
.java:39) [unknown, by unknown]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAcce
ssorImpl.java:25) [unknown, by unknown]
        at java.lang.reflect.Method.invoke (Method.java:585) [unknown, by unknow
n]
        at oracle.classloader.util.MainClass.invoke (MainClass.java:128) [/C:/Pr
ogram%20Files/sqldeveloper/j2ee/home/lib/pcl.jar, by sun.misc.Launcher$AppClassL
oader@9627532]
        at oracle.ide.boot.IdeLauncher.bootClassLoadersAndMain (IdeLauncher.java
:190) [/C:/Program%20Files/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launch
er$AppClassLoader@9627532]
        at oracle.ide.boot.IdeLauncher.launchImpl (IdeLauncher.java:90) [/C:/Pro
gram%20Files/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoa
der@9627532]
        at oracle.ide.boot.IdeLauncher.launch (IdeLauncher.java:66) [/C:/Program
%20Files/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@
9627532]
        at oracle.ide.boot.IdeLauncher.main (IdeLauncher.java:55) [/C:/Program%2
0Files/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@96
27532]
        at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native method) [unknown
, by unknown]
        at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl
.java:39) [unknown, by unknown]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAcce
ssorImpl.java:25) [unknown, by unknown]
        at java.lang.reflect.Method.invoke (Method.java:585) [unknown, by unknow
n]
        at oracle.ide.boot.Launcher.invokeMain (Launcher.java:729) [/C:/Program%
20Files/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@9
627532]
        at oracle.ide.boot.Launcher.launchImpl (Launcher.java:115) [/C:/Program%
20Files/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@9
627532]
        at oracle.ide.boot.Launcher.launch (Launcher.java:68) [/C:/Program%20Fil
es/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@962753
2]
        at oracle.ide.boot.Launcher.main (Launcher.java:57) [/C:/Program%20Files
/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@9627532]I also use a photo Web Site, which is unrelated to my Oracle work but for it's photo uploader also uses Java, and that is running slow, which is why I think the problem is Java based. I would say the problem occurred within the last couple of months but has got much worse in recently weeks. SQL Developer is also slow at times, mainly when I've used another application and it is just in the background.
Kind regards
Tim

Hi there
Thank you for taking the time to reply. I use GeoRaptor and for what I use it for, I have not come across any errors whilst using it.
I had no reference to the JDK in my SQL Developer configuration file. I did a search on my system and could not located a copy of JDK, or one in my programs installed control panel, so I installed it again. However I then found a copy in the sqldeveloper folder. However that wasn't referenced in my control panel.
However having added a reference to the JDK in my SQL Developer configuration file, pointing to C:\Program Files\Java\jdk1.6.0_16, it seems to be taken even longer to load.
SQL Developer is using 98,608k once loaded and my system has 1.25GB of memory. Whilst loading I was using 1.38GB. For about a year I've had slightly less memory than I sometimes use. The reason for not having 2GB is due to a previous memory failure. However this did not cause a problem for SQL developer until more recently.
Would it be worth reinstalling GeoRapter?
Kind regards
Tim
Exception initializing 'oracle.ideimpl.searchbar.SearchBarAddin' in extension 'S
earch Bar': java.lang.NullPointerException
        at oracle.ideimpl.searchbar.ColorProvider.isFusionLAF(ColorProvider.java
:29)
        at oracle.ideimpl.searchbar.ColorProvider.updateUIManager(ColorProvider.
java:35)
        at oracle.ideimpl.searchbar.SearchBarAddin.initialize(SearchBarAddin.jav
a:37)
        at oracle.ideimpl.extension.AddinManagerImpl.initializeAddin(AddinManage
rImpl.java:405)
        at oracle.ideimpl.extension.AddinManagerImpl.initializeAddins(AddinManag
erImpl.java:214)
        at oracle.ideimpl.extension.AddinManagerImpl.initProductAndUserAddins(Ad
dinManagerImpl.java:128)
        at oracle.ide.IdeCore.initProductAndUserAddins(IdeCore.java:1804)
        at oracle.ide.IdeCore.startupImpl(IdeCore.java:1481)
        at oracle.ide.Ide.startup(Ide.java:662)
        at oracle.ideimpl.DefaultIdeStarter.startIde(DefaultIdeStarter.java:35)
        at oracle.ideimpl.Main.start(Main.java:110)
        at oracle.ideimpl.Main.main(Main.java:72)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at oracle.ide.boot.PCLMain.callMain(PCLMain.java:66)
        at oracle.ide.boot.PCLMain.main(PCLMain.java:58)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at oracle.classloader.util.MainClass.invoke(MainClass.java:128)
        at oracle.ide.boot.IdeLauncher.bootClassLoadersAndMain(IdeLauncher.java:
190)
        at oracle.ide.boot.IdeLauncher.launchImpl(IdeLauncher.java:90)
        at oracle.ide.boot.IdeLauncher.launch(IdeLauncher.java:66)
        at oracle.ide.boot.IdeLauncher.main(IdeLauncher.java:55)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at oracle.ide.boot.Launcher.invokeMain(Launcher.java:729)
        at oracle.ide.boot.Launcher.launchImpl(Launcher.java:115)
        at oracle.ide.boot.Launcher.launch(Launcher.java:68)
        at oracle.ide.boot.Launcher.main(Launcher.java:57)
Load: C:\Program Files\sqldeveloper\sqldeveloper\bin\jdev\extensions\GeoRaptorLi
bs\Settings.xml
java.io.FileNotFoundException: C:\Program Files\sqldeveloper\sqldeveloper\bin\jd
ev\extensions\GeoRaptorLibs\Settings.xml (The system cannot find the path specif
ied)
        at java.io.FileInputStream.open(Native Method)
        at java.io.FileInputStream.<init>(FileInputStream.java:106)
        at java.io.FileInputStream.<init>(FileInputStream.java:66)
        at sun.net.www.protocol.file.FileURLConnection.connect(FileURLConnection
.java:70)
        at sun.net.www.protocol.file.FileURLConnection.getInputStream(FileURLCon
nection.java:161)
        at java.net.URL.openStream(URL.java:1010)
        at oracle.xml.parser.v2.XMLReader.openURL(XMLReader.java:2590)
        at oracle.xml.parser.v2.XMLReader.pushXMLReader(XMLReader.java:236)
        at oracle.xml.parser.v2.XMLParser.parse(XMLParser.java:208)
        at oracle.xml.jaxp.JXDocumentBuilder.parse(JXDocumentBuilder.java:155)
        at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:208)
        at org.GeoRaptor.MainSettings.load(Unknown Source)
        at org.GeoRaptor.PreferenceAddin.initialize(Unknown Source)
        at oracle.ideimpl.extension.AddinManagerImpl.initializeAddin(AddinManage
rImpl.java:405)
        at oracle.ideimpl.extension.AddinManagerImpl.initializeAddins(AddinManag
erImpl.java:214)
        at oracle.ideimpl.extension.AddinManagerImpl.initProductAndUserAddins(Ad
dinManagerImpl.java:128)
        at oracle.ide.IdeCore.initProductAndUserAddins(IdeCore.java:1804)
        at oracle.ide.IdeCore.startupImpl(IdeCore.java:1481)
        at oracle.ide.Ide.startup(Ide.java:662)
        at oracle.ideimpl.DefaultIdeStarter.startIde(DefaultIdeStarter.java:35)
        at oracle.ideimpl.Main.start(Main.java:110)
        at oracle.ideimpl.Main.main(Main.java:72)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at oracle.ide.boot.PCLMain.callMain(PCLMain.java:66)
        at oracle.ide.boot.PCLMain.main(PCLMain.java:58)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at oracle.classloader.util.MainClass.invoke(MainClass.java:128)
        at oracle.ide.boot.IdeLauncher.bootClassLoadersAndMain(IdeLauncher.java:
190)
        at oracle.ide.boot.IdeLauncher.launchImpl(IdeLauncher.java:90)
        at oracle.ide.boot.IdeLauncher.launch(IdeLauncher.java:66)
        at oracle.ide.boot.IdeLauncher.main(IdeLauncher.java:55)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at oracle.ide.boot.Launcher.invokeMain(Launcher.java:729)
        at oracle.ide.boot.Launcher.launchImpl(Launcher.java:115)
        at oracle.ide.boot.Launcher.launch(Launcher.java:68)
        at oracle.ide.boot.Launcher.main(Launcher.java:57)
Exception initializing 'org.GeoRaptor.MenuControler' in extension 'GeoRaptor': o
racle.classloader.util.AnnotatedNoClassDefFoundError:
          Missing class: oracle.jdeveloper.cm.dt.browser.jdbc.TableNode
        Dependent class: org.GeoRaptor.MenuControler
                 Loader: main:11.0
            Code-Source: /C:/Program Files/sqldeveloper/sqldeveloper/extensions/
org.GeoRaptor.jar
          Configuration: system property C:\Program Files\sqldeveloper\sqldevelo
per\extensions\org.GeoRaptor.jar
The missing class is not available from any code-source or loader in the system.
        at oracle.classloader.PolicyClassLoader.handleClassNotFound (PolicyClass
Loader.java:2176) [/C:/Program%20Files/sqldeveloper/j2ee/home/lib/pcl.jar, by su
n.misc.Launcher$AppClassLoader@4687246]
        at oracle.classloader.PolicyClassLoader.internalLoadClass (PolicyClassLo
ader.java:1729) [/C:/Program%20Files/sqldeveloper/j2ee/home/lib/pcl.jar, by sun.
misc.Launcher$AppClassLoader@4687246]
        at oracle.classloader.PolicyClassLoader.access$000 (PolicyClassLoader.ja
va:143) [/C:/Program%20Files/sqldeveloper/j2ee/home/lib/pcl.jar, by sun.misc.Lau
ncher$AppClassLoader@4687246]
        at oracle.classloader.PolicyClassLoader$LoadClassAction.run (PolicyClass
Loader.java:331) [/C:/Program%20Files/sqldeveloper/j2ee/home/lib/pcl.jar, by sun
.misc.Launcher$AppClassLoader@4687246]
        at java.security.AccessController.doPrivileged (Native method) [unknown,
by unknown]
        at oracle.classloader.PolicyClassLoader.loadClass (PolicyClassLoader.jav
a:1688) [/C:/Program%20Files/sqldeveloper/j2ee/home/lib/pcl.jar, by sun.misc.Lau
ncher$AppClassLoader@4687246]
        at oracle.classloader.PolicyClassLoader.loadClass (PolicyClassLoader.jav
a:1670) [/C:/Program%20Files/sqldeveloper/j2ee/home/lib/pcl.jar, by sun.misc.Lau
ncher$AppClassLoader@4687246]
        at java.lang.ClassLoader.loadClassInternal (ClassLoader.java:320) [jre b
ootstrap, by jre.bootstrap:1.6.0_16]
        at org.GeoRaptor.MenuControler.initialize (Unknown source file) [/C:/Pro
gram Files/sqldeveloper/sqldeveloper/extensions/org.GeoRaptor.jar (from system p
roperty C:\Program Files\sqldeveloper\sqldeveloper\extensions\org.GeoRaptor.jar)
, by main:11.0]
        at oracle.ideimpl.extension.AddinManagerImpl.initializeAddin (AddinManag
erImpl.java:405) [/C:/Program Files/sqldeveloper/ide/lib/ideimpl.jar (from syste
m property PCLMain.createExtensionManagerLoader()), by main:11.0]
        at oracle.ideimpl.extension.AddinManagerImpl.initializeAddins (AddinMana
gerImpl.java:214) [/C:/Program Files/sqldeveloper/ide/lib/ideimpl.jar (from syst
em property PCLMain.createExtensionManagerLoader()), by main:11.0]
        at oracle.ideimpl.extension.AddinManagerImpl.initProductAndUserAddins (A
ddinManagerImpl.java:128) [/C:/Program Files/sqldeveloper/ide/lib/ideimpl.jar (f
rom system property PCLMain.createExtensionManagerLoader()), by main:11.0]
        at oracle.ide.IdeCore.initProductAndUserAddins (IdeCore.java:1804) [/C:/
Program Files/sqldeveloper/ide/extensions/oracle.ide.jar (from system property P
CLMain.createExtensionManagerLoader()), by main:11.0]
        at oracle.ide.IdeCore.startupImpl (IdeCore.java:1481) [/C:/Program Files
/sqldeveloper/ide/extensions/oracle.ide.jar (from system property PCLMain.create
ExtensionManagerLoader()), by main:11.0]
        at oracle.ide.Ide.startup (Ide.java:662) [/C:/Program Files/sqldeveloper
/ide/extensions/oracle.ide.jar (from system property PCLMain.createExtensionMana
gerLoader()), by main:11.0]
        at oracle.ideimpl.DefaultIdeStarter.startIde (DefaultIdeStarter.java:35)
[/C:/Program Files/sqldeveloper/ide/lib/ideimpl.jar (from system property PCLMa
in.createExtensionManagerLoader()), by main:11.0]
        at oracle.ideimpl.Main.start (Main.java:110) [/C:/Program Files/sqldevel
oper/ide/lib/ideimpl.jar (from system property PCLMain.createExtensionManagerLoa
der()), by main:11.0]
        at oracle.ideimpl.Main.main (Main.java:72) [/C:/Program Files/sqldevelop
er/ide/lib/ideimpl.jar (from system property PCLMain.createExtensionManagerLoade
r()), by main:11.0]
        at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native method) [unknown
, by unknown]
        at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl
.java:39) [unknown, by unknown]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAcce
ssorImpl.java:25) [unknown, by unknown]
        at java.lang.reflect.Method.invoke (Method.java:597) [unknown, by unknow
n]
        at oracle.ide.boot.PCLMain.callMain (PCLMain.java:66) [/C:/Program%20Fil
es/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@468724
6]
        at oracle.ide.boot.PCLMain.main (PCLMain.java:58) [/C:/Program%20Files/s
qldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@4687246]
        at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native method) [unknown
, by unknown]
        at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl
.java:39) [unknown, by unknown]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAcce
ssorImpl.java:25) [unknown, by unknown]
        at java.lang.reflect.Method.invoke (Method.java:597) [unknown, by unknow
n]
        at oracle.classloader.util.MainClass.invoke (MainClass.java:128) [/C:/Pr
ogram%20Files/sqldeveloper/j2ee/home/lib/pcl.jar, by sun.misc.Launcher$AppClassL
oader@4687246]
        at oracle.ide.boot.IdeLauncher.bootClassLoadersAndMain (IdeLauncher.java
:190) [/C:/Program%20Files/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launch
er$AppClassLoader@4687246]
        at oracle.ide.boot.IdeLauncher.launchImpl (IdeLauncher.java:90) [/C:/Pro
gram%20Files/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoa
der@4687246]
        at oracle.ide.boot.IdeLauncher.launch (IdeLauncher.java:66) [/C:/Program
%20Files/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@
4687246]
        at oracle.ide.boot.IdeLauncher.main (IdeLauncher.java:55) [/C:/Program%2
0Files/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@46
87246]
        at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native method) [unknown
, by unknown]
        at sun.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl
.java:39) [unknown, by unknown]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAcce
ssorImpl.java:25) [unknown, by unknown]
        at java.lang.reflect.Method.invoke (Method.java:597) [unknown, by unknow
n]
        at oracle.ide.boot.Launcher.invokeMain (Launcher.java:729) [/C:/Program%
20Files/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@4
687246]
        at oracle.ide.boot.Launcher.launchImpl (Launcher.java:115) [/C:/Program%
20Files/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@4
687246]
        at oracle.ide.boot.Launcher.launch (Launcher.java:68) [/C:/Program%20Fil
es/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@468724
6]
        at oracle.ide.boot.Launcher.main (Launcher.java:57) [/C:/Program%20Files
/sqldeveloper/ide/lib/ide-boot.jar, by sun.misc.Launcher$AppClassLoader@4687246]

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faustofrancis wrote:
A Java Virtual Machine (JVM) is a set of computer software programs and data structures which use a virtual machine model for the execution of other computer programs and scripts. The model used by a JVM accepts a form of computer intermediate language commonly referred to as Java bytecode. This language conceptually represents the instruction set of a stack-oriented, capability architecture.
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Execution environment
Programs intended to run on a JVM must be compiled into a standardized portable binary format, which typically comes in the form of .class files. A program may consist of many classes in different files. For easier distribution of large programs, multiple class files may be packaged together in a .jar file (short for Java archive).
The JVM runtime executes .class or .jar files, emulating the JVM instruction set by interpreting it, or using a just-in-time compiler (JIT) such as Sun's HotSpot. JIT compiling, not interpreting, is used in most JVMs today to achieve greater speed. Ahead-of-time compilers that enable the developer to precompile class files into native code for a particular platform also exist.
Like most virtual machines, the Java Virtual Machine has a stack-based architecture.
Although the JVM was primarily aimed at running compiled Java programs, other languages can now run on top of it[1], such as:
* Ruby, with JRuby
* JavaScript, with Rhino
* Python, with Jython
* Common Lisp, with Armed Bear Common Lisp
* Groovy
* Scala
[edit] Bytecode verifier
A basic philosophy of Java is that it is inherently "safe" from the standpoint that no user program can "crash" the host machine or otherwise interfere inappropriately with other operations on the host machine, and that it is possible to protect certain functions and data structures belonging to "trusted" code from access or corruption by "untrusted" code executing within the same JVM. Furthermore, common programmer errors that often lead to data corruption or unpredictable behavior such as accessing off the end of an array or using an uninitialized pointer are not allowed to occur. Several features of Java combine to provide this safety, including the class model, the garbage-collected heap, and the verifier.
The JVM verifies all bytecode before it is executed. This verification consists primarily of three types of checks:
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The first two of these checks take place primarily during the "verification" step which occurs when a class is loaded and made eligible for use. The third is primarily performed dynamically, when data items or methods of a class are first accessed by another class.
The verifier permits only some bytecode sequences in valid programs, e.g. a jump (branch) instruction can only target an instruction within the same function or method. Because of this, the fact that JVM is a stack architecture does not imply a speed penalty for emulation on register-based architectures when using a JIT compiler. In the face of the code-verified JVM architecture, it makes no difference to a JIT compiler whether it gets named imaginary registers or imaginary stack positions that need to be allocated to the target architecture's registers. In fact, code verification makes the JVM different from a classic stack architecture whose efficient emulation with a JIT compiler is more complicated and typically carried out by a slower interpreter.
Code verification also ensures that arbitrary bit patterns cannot get used as an address. Memory protection is achieved without the need for a MMU. Thus, JVM is an efficient way of getting memory protection on simple architectures that lack an MMU. This is analogous to managed code in Microsoft's .NET CLR, and conceptually similar to capability architectures such as the Plessey 250, and IBM System/38.
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Main article: Java bytecode
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The aim is binary compatibility. Each particular host operating system needs its own implementation of the JVM and runtime. These JVMs interpret the byte code semantically the same way, but the actual implementation may be different. More complicated than just the emulation of bytecode is compatible and efficient implementation of the Java core API which has to be mapped to each host operating system.
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[edit] C to bytecode compilers
From the point of view of a compiler Java bytecode is just another processor with an instruction set for which code can be generated. The JVM was originally designed to execute programs written in the Java language. However, the JVM provides an execution environment in the form of a bytecode instruction set and a runtime system that is general enough that it can be used as the target for compilers of other languages.
Because of its close association with Java the JVM performs the runtime checks mandated by the Java specification. This can make it technically difficult to translate C code (which is much more lax with regard to runtime checking) to the JVM and expect it to run without issuing any warnings.
Compilers targeting many different languages, including Ada and COBOL, have been written.
[edit] Licensing
Starting with J2SE 5.0, changes to the JVM specification have been developed under the Java Community Process as JSR 924[2]. As of 2006, changes to specification to support changes proposed to the class file format (JSR 202[3]) are being done as a maintenance release of JSR 924. The specification for the JVM is published in book form,[4] known as "blue book". The preface states:
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Sun's JVM is called HotSpot. Clean-room Java implementations include Kaffe and IBM J9. Sun retains control over the Java trademark, which it uses to certify implementation suites as fully compatible with Sun's specification.
[edit] See also
* HotSpot, Sun's Virtual Machine
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* List of Java virtual machines
* Automated Exception Handling
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* Java bytecode
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* Java performance
* List of compilers
[edit] Notes
1. ^ Tolksdorf, Robert (2005). Languages for the Java VM. Retrieved on 2008-04-23.
2. ^ JSR 924  Specifies changes to the JVM specification starting with J2SE 5.0
3. ^ JSR 202  Specifies a number of changes to the class file format
4. ^ The Java Virtual Machine Specification (the first and second editions are also available online)
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* The Java Virtual Machine Specification
* Java-Virtual-Machine.net - All about Java Virtual Machines!
* List of languages which compile to the Java virtual machine.
* A decade after Java arrived, there have been improvements in the runtime performance of platform-independent virtual-machine based software.
* Kaffe.org - the Kaffe project
* JamVM - The Jam Virtual Machine
* The lean, mean, virtual machine - An introduction to the basic structure and functionality of the Java Virtual Machine
* Java Glossary - installing Java useful tips for installing Java for users and developers
* Test your Java Virtual Machine
* A list of Java VM-s used in mobile devices
* More Languages for the JVM
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***NewsFlash***
I think I stumbled on the solution just prior to posting, so here is what worked for me in case anyone else runs into this....
I had created a desktop short-cut to "C:\Program Files\datamodeler\datamodeler.exe", which I am guessing is the 32bit version of the binary file.
I was able to launch successfully by pointing to "C:\Program Files\datamodeler\datamodeler64.exe"

That path is incorrect - strip everything after the jdk1.7.0_45\

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The Team
I'm reluctant to comment about which part of the product is built in which country, but will say that SQL Developer has been a small team, with the greater percentage of developers living outside the US from the outset. I love working in the team including the wide diversity of locales and cultures and also think that because we live across multiple time zones, we can help users most times of the day or night. We are very privileged to have had the modeling team join us and I'm sure you'll get to know them in time too. If you are interested, the team stretches across a few states in the US, Ireland, Northern Ireland,England, Belgium, Bulgaria, India and China!
Now to the problem. - Java virtual machine
1. There is a choice of download, either with the JDK or without. If you download the build with the JDK, there should be no problem, as the product knows where to find the jdk. I'm not sure I see which of these 2 downloads was used. So that would be useful information to have.
2. If you use the build without the JDK, then Data Modeling looking for the detail in your path.(Unlike in SQL Developer where we prompt you) You can test to see what is in your path by starting a command line, or command prompt and typing java -version. This will tell you what version of java is being looked for and used by Data Modeling.
If you do not have a JDK, then you can download and install that as described on the download page.
Troubleshooting
We want to release SQL Developer Data Modeling as a standalone tool (i.e. what you are testing today) or underpinned by a repository. So our main goal is to ensure that we have a solid stable and usable product for production. The plan is to follow production with a much tighter integration to the underlying SQL Developer framework.
Regards
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HI,
A Java Virtual Machine (JVM), is a virtual machine that interprets and executes Java bytecode. This code is most often generated by Java language compilers, although the JVM can also be targeted by compilers of other languages. JVMs may be developed by other companies as long as they adhere to the JVM standard published by Sun.
The JVM is a crucial component of the Java Platform. Because JVMs are available for many hardware and software platforms, Java can be both middleware and a platform in its own right - hence the expression "Write once, run anywhere." The use of the same bytecode for all platforms allows Java to be described as "Compile once, run anywhere", as opposed to "Write once, compile anywhere", which describes cross-platform compiled languages.
Starting with J2SE 5.0, changes to the JVM specification have been developed under the Java Community Process as JSR 924[1]. As of 2006, changes to specification to support changes proposed to the class file format (JSR 202[2]) are being done as a maintenance release of JSR 924. The specification for the JVM is published in book form[3], known as "blue book". The preface states:
We intend that this specification should sufficiently document the Java Virtual Machine to make possible compatible clean-room implementations. Sun provides tests which verify the proper operation of implementations of the Java Virtual Machine.
Sun's JVM is called HotSpot. Clean-room Java implementations include Kaffe and IBM's. Sun retains control over the Java trademark, which it uses to certify implementation suites as fully compatible with Sun's specification
we have two caches JAVA,ABAP.
i mean all objects which will execute in JAVA Cache those need the JVM.
Regards
Chilla

JAVA Importer: ORA-105100 can't start the java virtual machine

Hi,
i am having trouble to make a work interaction between forms and java.
My PL/SQL code is calling a java code situated in an imported class.
the error i get says : can't start the java virtual machine
I modified the CLASSPATH to add some jar files.
What else should i do ?
should i modify LIBPATH ?
any idea ?
Thanks
Dan

i just found this documentation Oracle Forms Developer and Forms Server 6i (Patch 4) at this adress
http://download.oracle.com/otn_hosted_doc/forms/forms/p4_relnotef.pdf
which says that i need jdk 1.2.2 to make it work but the documentation was published in 2001...
Is there an earlier doc ? or an earlier doc of the java importer ?
http://www.oracle.com/technology/products/forms/pdf/javaimporter.pdf
any help would be appreciated

SQL Developer running slow, possibly caused by Java Virtual Machine

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