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Type: Bug
Resolution: Fixed
Priority: P1
Fix Version/s: 1.4.0
Affects Version/s: 1.4.0
Component/s: deploy
Labels:
- HttpURLConnection
- Red
- URLConnection
- connect
- getContent
- plugin

Subcomponent:
plugin
Resolved In Build:
rc1
CPU:

x86, sparc
OS:

linux, solaris_2.6, windows_nt
Verification:
Verified

Name: iaR10016 Date: 10/16/2001

JDK : JDK1.4.0-beta-b83
                 (The tests pass with JDK1.4.0-beta-b82)
JCK : JCK1.4-b11
Platform[s] : RedHat Linux 7.1, Windows NT
switch/Mode : Plugin with Netscape Communicator 4.76, 6.1, Internet Explorer 5.0
                 (the tests pass under appletviewer)
JCK test owner : http://javaweb.eng/jck/usr/owners.jto
Failing Tests : api/java_net/URLConnection/descriptions.html#getLastModified [URLConnection2019]
                 api/java_net/URLConnection/descriptions.html#getContent [URLConnection2038, URLConnection2242, URLConnection2243, URLConnection2244]
                 api/java_net/URLConnection/descriptions.html#getHeaderField
                 api/java_net/URLConnection/descriptions.html#getInputStream [URLConnection2035]
                 api/java_net/HttpURLConnection/index.html#getErrorStream [HttpURLConnection2008]
                 api/java_net/URLConnection/descriptions.html#getExpiration [URLConnection2022]
                 api/java_net/URLConnection/descriptions.html#getContentType [URLConnection2010]
                 api/java_net/HttpURLConnection/index.html#getResponseMessage [HttpURLConnection2004]
                 api/java_net/HttpURLConnection/index.html#getResponseCode [HttpURLConnection2003]
                 api/java_net/URLConnection/descriptions.html#getContentLength [URLConnection2007]
                 api/java_net/URL/descriptions.html#IOException [URL2055, URL2056, URL2057]
                 api/java_net/distributed/index.html#NetDistributed [distributed2001, distributed2003, distributed2005, distributed2013]
                 api/java_net/URL/descriptions.html#getContent [URL2016, URL1059]
                 api/java_net/URL/descriptions.html#openStream [URL2015, URL1056]
                 api/java_net/HttpURLConnection/index.html#Disconnect [HttpURLConnection2001]
                 api/java_net/HttpURLConnection/index.html#getHeaderFieldDate [HttpURLConnection0011, HttpURLConnection0012, HttpURLConnection0013]
                 api/java_net/URLConnection/descriptions.html#guessContentType [URLConnection2029]

Method URLConnection.getContent() throws unexpected java.lang.NullPointerException when running
under plugin.

The following test example demonstrates the bug.
Please, compile test.java under RedHat Linux 7.1 and then open test.html using
Netscape Navigator 4.76 or Netscape Navigator 6.1 (probably, you need to change
httpURL parameter in the test.html file):

-------------------- test.java --------------------
import java.applet.*;
import java.net.*;

public class test extends Applet {

    public static void main(String argv[]) { run(argv[0]); }
    public void init() { run(getParameter("httpURL")); }

    public static void run(String httpURL) {
        try {
     URLConnection conn = (new URL(httpURL)).openConnection();
     Object is = conn.getContent();
     System.out.println("No exceptions!");
        } catch (Exception e) {
     e.printStackTrace();
        }
    }
}
-------------------- test.html --------------------
<html>
<EMBED type=application/x-java-applet
   code=test
   httpURL=http://novo64:8086
>
</html>
---------------------------------------------------

Sample output is:
...
java.lang.NullPointerException
at sun.plugin.cache.Cache.getFileExtension(Cache.java:262)
at sun.plugin.cache.FileCache.isSupported(FileCache.java:186)
at sun.plugin.cache.FileCache.get(FileCache.java:126)
at sun.plugin.net.protocol.http.HttpURLConnection.connectWithCache(HttpURLConnection.java:198)
at sun.plugin.net.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:144)
at sun.plugin.net.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:290)
at java.net.URLConnection.getContent(URLConnection.java:585)
at test.run(test.java:12)
at test.init(test.java:7)
at sun.applet.AppletPanel.run(AppletPanel.java:344)
at java.lang.Thread.run(Thread.java:539)
...

Please, note that the bug is not reproducible in default JDK mode and under appletviewer on the
same machine. Sample output is:

...
$ java test http://novo64:8086
No exceptions!
$
...

Test source location:
=====================
/net/jdk/export/disk8/local.java/jck1.4/JCK-runtime-14/tests/api/java_net/URL/*.java
/net/jdk/export/disk8/local.java/jck1.4/JCK-runtime-14/tests/api/java_net/URLConnection/*.java
/net/jdk/export/disk8/local.java/jck1.4/JCK-runtime-14/tests/api/java_net/HttpURLConnection/*.java
/net/jdk/export/disk8/local.java/jck1.4/JCK-runtime-14/tests/api/java_net/distributed/*.java

jtr file location:
==================
/net/jtgb4u4c.eng/export/sail15/results/merlin/b83/jck14/linux/redhat7.1_smp_gnome_plugin_ns6.1_linux-24/workDir/api/java_net/URLConnection/descriptions_getLastModified.jtr
/net/jtgb4u4c.eng/export/sail15/results/merlin/b83/jck14/linux/redhat7.1_smp_gnome_plugin_ns6.1_linux-24/workDir/api/java_net/URLConnection/descriptions_getContent.jtr
/net/jtgb4u4c.eng/export/sail15/results/merlin/b83/jck14/linux/redhat7.1_smp_gnome_plugin_ns6.1_linux-24/workDir/api/java_net/URLConnection/descriptions_getHeaderField.jtr
/net/jtgb4u4c.eng/export/sail15/results/merlin/b83/jck14/linux/redhat7.1_smp_gnome_plugin_ns6.1_linux-24/workDir/api/java_net/URLConnection/descriptions_getInputStream.jtr
/net/jtgb4u4c.eng/export/sail15/results/merlin/b83/jck14/linux/redhat7.1_smp_gnome_plugin_ns6.1_linux-24/workDir/api/java_net/HttpURLConnection/index_getErrorStream.jtr
/net/jtgb4u4c.eng/export/sail15/results/merlin/b83/jck14/linux/redhat7.1_smp_gnome_plugin_ns6.1_linux-24/workDir/api/java_net/URLConnection/descriptions_getExpiration.jtr
/net/jtgb4u4c.eng/export/sail15/results/merlin/b83/jck14/linux/redhat7.1_smp_gnome_plugin_ns6.1_linux-24/workDir/api/java_net/URLConnection/descriptions_getContentType.jtr
/net/jtgb4u4c.eng/export/sail15/results/merlin/b83/jck14/linux/redhat7.1_smp_gnome_plugin_ns6.1_linux-24/workDir/api/java_net/HttpURLConnection/index_getResponseMessage.jtr
/net/jtgb4u4c.eng/export/sail15/results/merlin/b83/jck14/linux/redhat7.1_smp_gnome_plugin_ns6.1_linux-24/workDir/api/java_net/HttpURLConnection/index_getResponseCode.jtr
/net/jtgb4u4c.eng/export/sail15/results/merlin/b83/jck14/linux/redhat7.1_smp_gnome_plugin_ns6.1_linux-24/workDir/api/java_net/URLConnection/descriptions_getContentLength.jtr
/net/jtgb4u4c.eng/export/sail15/results/merlin/b83/jck14/linux/redhat7.1_smp_gnome_plugin_ns6.1_linux-24/workDir/api/java_net/URL/descriptions_IOException.jtr
/net/jtgb4u4c.eng/export/sail15/results/merlin/b83/jck14/linux/redhat7.1_smp_gnome_plugin_ns6.1_linux-24/workDir/api/java_net/distributed/index_NetDistributed.jtr
/net/jtgb4u4c.eng/export/sail15/results/merlin/b83/jck14/linux/redhat7.1_smp_gnome_plugin_ns6.1_linux-24/workDir/api/java_net/URL/descriptions_getContent.jtr
/net/jtgb4u4c.eng/export/sail15/results/merlin/b83/jck14/linux/redhat7.1_smp_gnome_plugin_ns6.1_linux-24/workDir/api/java_net/URL/descriptions_openStream.jtr
/net/jtgb4u4c.eng/export/sail15/results/merlin/b83/jck14/linux/redhat7.1_smp_gnome_plugin_ns6.1_linux-24/workDir/api/java_net/HttpURLConnection/index_Disconnect.jtr
/net/jtgb4u4c.eng/export/sail15/results/merlin/b83/jck14/linux/redhat7.1_smp_gnome_plugin_ns6.1_linux-24/workDir/api/java_net/HttpURLConnection/index_getHeaderFieldDate.jtr
/net/jtgb4u4c.eng/export/sail15/results/merlin/b83/jck14/linux/redhat7.1_smp_gnome_plugin_ns6.1_linux-24/workDir/api/java_net/URLConnection/descriptions_guessContentType.jtr

Test output:
=============
Executing command via localhost.localdomain,port=33037,localport=1944
java.lang.NullPointerException
        at sun.plugin.cache.Cache.getFileExtension(Cache.java:262)
        at sun.plugin.cache.FileCache.isSupported(FileCache.java:186)
        at sun.plugin.cache.FileCache.get(FileCache.java:126)
        at sun.plugin.net.protocol.http.HttpURLConnection.connectWithCache(HttpURLConnection.java:198)
        at sun.plugin.net.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:144)
        at sun.plugin.net.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:290)
        at java.net.URLConnection.getContent(URLConnection.java:585)
        at javasoft.sqe.tests.api.java.net.URLConnection.getContentTests.URLConnection2038(getContentTests.java:178)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:42)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:28)
        at java.lang.reflect.Method.invoke(Method.java:327)
        at javasoft.sqe.javatest.lib.MultiTest.invokeTestCase(MultiTest.java:407)
        at javasoft.sqe.javatest.lib.MultiTest.run(MultiTest.java:203)
        at com.sun.jck.lib.ExecJCKTestSameJVMCmd.executeStandardTest(ExecJCKTestSameJVMCmd.java:226)
        at com.sun.jck.lib.ExecJCKTestSameJVMCmd.run(ExecJCKTestSameJVMCmd.java:160)
        at com.sun.javatest.agent.Agent$Task.executeCommand(Agent.java:747)
        at com.sun.javatest.agent.Agent$Task.execute(Agent.java:676)
        at com.sun.javatest.agent.Agent$Task.handleRequest(Agent.java:534)
        at com.sun.javatest.agent.Agent.handleRequestsUntilClosed(Agent.java:320)
        at com.sun.javatest.agent.Agent.access$000(Agent.java:56)
        at com.sun.javatest.agent.Agent$1.run(Agent.java:208)
        at java.lang.Thread.run(Thread.java:539)
URLConnection2038: Failed. Test case throws exception: java.lang.NullPointerException
...
URLConnection2244: Failed. Test case throws exception: java.lang.NullPointerException
result: Failed. tests: 7; passed: 3; failed: 4; first test case failure: URLConnection2038

Specific Machine Info:
=====================
Hostname: Linux-14
OS: RedHat Linux 7.1

Hostname: Linux-21
OS: Windows NT 4.0

======================================================================

Name: iaR10016 Date: 10/25/2001

The following tests also fail due to this bug with JCK1.4-b12, JDK1.4.0-beta-b84,
plugin, Netscape 6.1 under Windows NT 4.0:
api/java_net/URLConnection/descriptions.html#RequestProperty
api/java_net/URLConnection/descriptions.html#AllowUserInteraction [URLConnection2001]
api/java_net/URLConnection/descriptions.html#UseCaches [URLConnection1035]

======================================================================

duplicates

JDK-4525421 URL.getContent() throws unexpected NPE under netscape plugin

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