Name: mt13159 Date: 07/18/2001


Problem Description:
--------------------
Using merlin build 71 with netscape 4.77 on Windows NT.

When loading the Oracle Applications page, this exception
is thrown sometimes.

java.lang.NullPointerException
        at java.lang.StringBuffer.<init>(StringBuffer.java:132)
        at sun.plugin.AppletViewer.getDocumentBase(AppletViewer.java:684)
        at sun.plugin.AppletViewer.getCodeBase(AppletViewer.java:762)
        at sun.plugin.AppletViewer.appletInit(AppletViewer.java:431)
        at sun.plugin.navig.win32.AppletPluginPanel.initPanel(AppletPluginPanel.java:83)
        at sun.plugin.navig.win32.PluginObject$Initer.run(PluginObject.java:253)

java.lang.NullPointerException
        at sun.plugin.AppletViewer.getCodeBase(AppletViewer.java:768)
        at sun.plugin.AppletViewer.appletInit(AppletViewer.java:431)
        at sun.plugin.navig.win32.AppletPluginPanel.initPanel(AppletPluginPanel.java:83)
        at sun.plugin.navig.win32.PluginObject$Initer.run(PluginObject.java:253)

Exact Steps to reproduce:
-------------------------
[1] Load the Oracle Applications URL.
    (Oracle Applications is installed in SUN cupertino office)
[2] Sometimes the above exception is thrown
(Review ID: 128364)
======================================================================


###@###.### 2001-08-23

CAP member reported the same problem:

Version Info:
C:\>java -version
java version "1.4.0-beta2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-beta2-b76)
Java HotSpot(TM) Client VM (build 1.4.0-beta2-b76, mixed mode)

Same Bug in J2SE 1.3?
Currently, no suitable configuration for reproduction available.

Operating System:
Windows NT 4.0 SP 6.a (US English)

Hardware:
Toshiba Satellite Pro4280 Notebook
Intel Pentium III / 500 MHz
512 MB RAM
1 IDE HDD

Bug Description:
NullPointerException when using Plugin with the Netscape 4.78 "Enable
Java Plugin" option.
(This could also be a Netscape-specific problem.)

Bug Reproduction:
Check the option indicated above,
go to "http://java.sun.com".

The second NullpointerException only occurs during a fresh startup of
the plugin.
Unfortunately, at this point it is already too late for switching the
trace level to 5.

copy of the Java console output:

Java(TM) Plug-in: Version 1.4.0
Verwendung der JRE-Version 1.4.0-beta2 Java HotSpot(TM) Client VM
Home-Verzeichnis des Benutzers = C:\WINNT\Profiles\Administrator


1st dump:
Trace level set to 5: basic, net, security, ext, liveconnect ...
completed.

Registered modality listener

Evaluate self.document.URL = null

java.lang.NullPointerException

at java.lang.StringBuffer.<init>(StringBuffer.java:132)
at sun.plugin.AppletViewer.getDocumentBase(AppletViewer.java:742)
at sun.plugin.AppletViewer.getCodeBase(AppletViewer.java:821)
at sun.plugin.AppletViewer.appletInit(AppletViewer.java:461)
at
sun.plugin.viewer.LifeCycleManager.initAppletPanel(LifeCycleManager.java:150)
at
sun.plugin.viewer.WNetscapePluginObject$Initer.run(WNetscapePluginObject.java:275)

Referencing classloader: sun.plugin.ClassLoaderInfo@950198, refcount=1

Added trace listener:
sun.plugin.AppletViewer[jug2,0,0,120x150,invalid,layout=java.awt.BorderLayout]

Added progress listener:
sun.plugin.AppletViewer[jug2,0,0,120x150,invalid,layout=java.awt.BorderLayout]

Loading applet...

Initializing applet...

Starting applet...

Loaded image: http://192.18.97.71/images/ad/jug_applet2.gif

Evaluate function setStatus() { self.status='Applet jug2
loaded';};void(setTimeout("setStatus()", 1500)) = null

Evaluate function setStatus() { self.status='Applet jug2
inited';};void(setTimeout("setStatus()", 1500)) = null

Evaluate function setStatus() { self.status='Applet jug2
started';};void(setTimeout("setStatus()", 1500)) = null



2nd dump:
java.lang.NullPointerException

at java.lang.StringBuffer.<init>(StringBuffer.java:132)
at sun.plugin.AppletViewer.getDocumentBase(AppletViewer.java:742)
at sun.plugin.AppletViewer.getCodeBase(AppletViewer.java:821)
at sun.plugin.AppletViewer.appletInit(AppletViewer.java:461)
at
sun.plugin.viewer.LifeCycleManager.initAppletPanel(LifeCycleManager.java:150)
at
sun.plugin.viewer.WNetscapePluginObject$Initer.run(WNetscapePluginObject.java:275)

java.lang.NullPointerException

at
sun.plugin.net.cookie.Netscape4CookieHandler.getMatchedApplet(Netscape4CookieHandler.java:164)
at
sun.plugin.net.cookie.Netscape4CookieHandler.getCookieInfo(Netscape4CookieHandler.java:85)
at
sun.plugin.net.cookie.PluginCookieManager.getCookieInfo(PluginCookieManager.java:91)
at
sun.plugin.net.protocol.http.HttpURLConnection.connectStep2(HttpURLConnection.java:225)
at
sun.plugin.net.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:144)
at
sun.plugin.net.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:258)
at
sun.net.www.protocol.http.HttpURLConnection.getHeaderField(HttpURLConnection.java:1036)
at
sun.net.www.protocol.http.HttpURLConnection.getResponseCode(HttpURLConnection.java:1050)
        at sun.applet.AppletClassLoader.getBytes(AppletClassLoader.java:220)
at sun.applet.AppletClassLoader.access$100(AppletClassLoader.java:41)
at sun.applet.AppletClassLoader$1.run(AppletClassLoader.java:139)
at java.security.AccessController.doPrivileged(Native Method)
at sun.applet.AppletClassLoader.findClass(AppletClassLoader.java:136)
at
sun.plugin.security.PluginClassLoader.findClass(PluginClassLoader.java:185)
at java.lang.ClassLoader.loadClass(ClassLoader.java:308)
at sun.applet.AppletClassLoader.loadClass(AppletClassLoader.java:110)
at java.lang.ClassLoader.loadClass(ClassLoader.java:264)
at sun.applet.AppletClassLoader.loadCode(AppletClassLoader.java:379)
at sun.applet.AppletPanel.createApplet(AppletPanel.java:542)
at sun.plugin.AppletViewer.createApplet(AppletViewer.java:1264)
at sun.applet.AppletPanel.runLoader(AppletPanel.java:478)
at sun.applet.AppletPanel.run(AppletPanel.java:293)
at java.lang.Thread.run(Thread.java:539)
================================
Additional comments from Oracle;

Oracle Applications 11i url at sun is:
               http://dnm-005.eng.sun.com:8000/OA_HTML/merlin.html

mayank.thakore(2001-09-20)