[jira] [Commented] (LANG-1544) MethodUtils.invokeMethod NullPointerException in case of null in args list
[
https://issues.apache.org/jira/browse/LANG-1544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17253559#comment-17253559
]
Gary D. Gregory commented on LANG-1544:
---
The description needs a stack trace to make it easier for everyone to match up
with exceptions in the wild.
> MethodUtils.invokeMethod NullPointerException in case of null in args list
> --
>
> Key: LANG-1544
> URL: https://issues.apache.org/jira/browse/LANG-1544
> Project: Commons Lang
> Issue Type: Bug
> Components: lang.reflect.*
>Affects Versions: 3.10
>Reporter: Peter Nagy
>Priority: Critical
> Time Spent: 2.5h
> Remaining Estimate: 0h
>
> MethodUtils:774
>
> if (classArray[offset].equals(toClassArray[offset])) {
> continue;
> } else if (ClassUtils.isAssignable(classArray[offset], toClassArray[offset],
> true)
>
> cause NPE if classArray[offset] is null. Can you please extend the if
> condition with a null check, like this?
>
> if (classArray[offset] != null &&
> classArray[offset].equals(toClassArray[offset]))
--
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[jira] [Commented] (LANG-1544) MethodUtils.invokeMethod NullPointerException in case of null in args list
[
https://issues.apache.org/jira/browse/LANG-1544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17253134#comment-17253134
]
Michael Buck commented on LANG-1544:
The issue seems to manifest itself when MethodUtils#getMatchingMethod() is
called with one or more of the incoming parameterTypes as null and the target
class to find the method has more than one method that is a possible candidate.
This causes the private distance method to be invoked which causes the NPE.
Please see PR
[here|[http://example.com|https://github.com/apache/commons-lang/pull/680]].
> MethodUtils.invokeMethod NullPointerException in case of null in args list
> --
>
> Key: LANG-1544
> URL: https://issues.apache.org/jira/browse/LANG-1544
> Project: Commons Lang
> Issue Type: Bug
> Components: lang.reflect.*
>Affects Versions: 3.10
>Reporter: Peter Nagy
>Priority: Critical
> Time Spent: 2h 10m
> Remaining Estimate: 0h
>
> MethodUtils:774
>
> if (classArray[offset].equals(toClassArray[offset])) {
> continue;
> } else if (ClassUtils.isAssignable(classArray[offset], toClassArray[offset],
> true)
>
> cause NPE if classArray[offset] is null. Can you please extend the if
> condition with a null check, like this?
>
> if (classArray[offset] != null &&
> classArray[offset].equals(toClassArray[offset]))
--
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[jira] [Commented] (LANG-1544) MethodUtils.invokeMethod NullPointerException in case of null in args list
[
https://issues.apache.org/jira/browse/LANG-1544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17228450#comment-17228450
]
Arturo Bernal commented on LANG-1544:
-
Hi [~RobertBudda]
I have tried to reproduce the error but I can't.
{code:java}
@Test
public void testMethodABG() throws IllegalAccessException,
InstantiationException, NoSuchMethodException, InvocationTargetException,
ClassNotFoundException {
Class c = Class.forName("org.apache.commons.lang3.builderClass1");
Object o = c.newInstance();
System.out.println(o);
String value = (String) MethodUtils.invokeMethod(o, "testMethod");
System.out.println("Results from getValue: " + value);
}
class Class1 {
public String testMethod() {
return "ABG";
}
}{code}
> MethodUtils.invokeMethod NullPointerException in case of null in args list
> --
>
> Key: LANG-1544
> URL: https://issues.apache.org/jira/browse/LANG-1544
> Project: Commons Lang
> Issue Type: Bug
> Components: lang.reflect.*
>Affects Versions: 3.10
>Reporter: Peter Nagy
>Priority: Critical
> Time Spent: 1h 40m
> Remaining Estimate: 0h
>
> MethodUtils:774
>
> if (classArray[offset].equals(toClassArray[offset])) {
> continue;
> } else if (ClassUtils.isAssignable(classArray[offset], toClassArray[offset],
> true)
>
> cause NPE if classArray[offset] is null. Can you please extend the if
> condition with a null check, like this?
>
> if (classArray[offset] != null &&
> classArray[offset].equals(toClassArray[offset]))
--
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[jira] [Commented] (LANG-1544) MethodUtils.invokeMethod NullPointerException in case of null in args list
[
https://issues.apache.org/jira/browse/LANG-1544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17208481#comment-17208481
]
Prabhakar Kumar Shah commented on LANG-1544:
[~nagy_peter] Hi, could you provide a real code example which reproduces this
issue?
Though, I created a PR as a first good issue to fix, I am unable to reproduce
this. So, I think this issue is invalid.
> MethodUtils.invokeMethod NullPointerException in case of null in args list
> --
>
> Key: LANG-1544
> URL: https://issues.apache.org/jira/browse/LANG-1544
> Project: Commons Lang
> Issue Type: Bug
> Components: lang.reflect.*
>Affects Versions: 3.10
>Reporter: Peter Nagy
>Priority: Critical
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> MethodUtils:774
>
> if (classArray[offset].equals(toClassArray[offset])) {
> continue;
> } else if (ClassUtils.isAssignable(classArray[offset], toClassArray[offset],
> true)
>
> cause NPE if classArray[offset] is null. Can you please extend the if
> condition with a null check, like this?
>
> if (classArray[offset] != null &&
> classArray[offset].equals(toClassArray[offset]))
--
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[jira] [Commented] (LANG-1544) MethodUtils.invokeMethod NullPointerException in case of null in args list
[
https://issues.apache.org/jira/browse/LANG-1544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17160545#comment-17160545
]
Prabhakar Kumar Shah commented on LANG-1544:
I have some knowledge to mend this issue. have created a PR, Please have a
look. [~ggregory]
[https://github.com/apache/commons-lang/pull/583|http://example.com]
> MethodUtils.invokeMethod NullPointerException in case of null in args list
> --
>
> Key: LANG-1544
> URL: https://issues.apache.org/jira/browse/LANG-1544
> Project: Commons Lang
> Issue Type: Bug
> Components: lang.reflect.*
>Affects Versions: 3.10
>Reporter: Peter Nagy
>Priority: Critical
> Time Spent: 10m
> Remaining Estimate: 0h
>
> MethodUtils:774
>
> if (classArray[offset].equals(toClassArray[offset])) {
> continue;
> } else if (ClassUtils.isAssignable(classArray[offset], toClassArray[offset],
> true)
>
> cause NPE if classArray[offset] is null. Can you please extend the if
> condition with a null check, like this?
>
> if (classArray[offset] != null &&
> classArray[offset].equals(toClassArray[offset]))
--
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[jira] [Commented] (LANG-1544) MethodUtils.invokeMethod NullPointerException in case of null in args list
[
https://issues.apache.org/jira/browse/LANG-1544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17125648#comment-17125648
]
Robert Konior commented on LANG-1544:
-
I'm a newbie also but Gary told to feel free with providing PR, so I do
suppose you can do it without Jira assignment, jest done this according to
these instructions
[https://github.com/apache/commons-lang/blob/master/CONTRIBUTING.md]
> MethodUtils.invokeMethod NullPointerException in case of null in args list
> --
>
> Key: LANG-1544
> URL: https://issues.apache.org/jira/browse/LANG-1544
> Project: Commons Lang
> Issue Type: Bug
> Components: lang.reflect.*
>Affects Versions: 3.10
>Reporter: Peter Nagy
>Priority: Critical
>
> MethodUtils:774
>
> if (classArray[offset].equals(toClassArray[offset])) {
> continue;
> } else if (ClassUtils.isAssignable(classArray[offset], toClassArray[offset],
> true)
>
> cause NPE if classArray[offset] is null. Can you please extend the if
> condition with a null check, like this?
>
> if (classArray[offset] != null &&
> classArray[offset].equals(toClassArray[offset]))
--
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[jira] [Commented] (LANG-1544) MethodUtils.invokeMethod NullPointerException in case of null in args list
[
https://issues.apache.org/jira/browse/LANG-1544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17125265#comment-17125265
]
Peter Nagy commented on LANG-1544:
--
Hi Robert,
Sorry, I am new here. I am afraid I have no rights to assign you this issue. I
do not know either how to submit a fix, otherwise I would have been done it. I
can only hope that somebody who is in charge will pick up this issue and extend
the code with this tiny yet important modification.
Best regards, Peter
> MethodUtils.invokeMethod NullPointerException in case of null in args list
> --
>
> Key: LANG-1544
> URL: https://issues.apache.org/jira/browse/LANG-1544
> Project: Commons Lang
> Issue Type: Bug
> Components: lang.reflect.*
>Affects Versions: 3.10
>Reporter: Peter Nagy
>Priority: Critical
>
> MethodUtils:774
>
> if (classArray[offset].equals(toClassArray[offset])) {
> continue;
> } else if (ClassUtils.isAssignable(classArray[offset], toClassArray[offset],
> true)
>
> cause NPE if classArray[offset] is null. Can you please extend the if
> condition with a null check, like this?
>
> if (classArray[offset] != null &&
> classArray[offset].equals(toClassArray[offset]))
--
This message was sent by Atlassian Jira
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[jira] [Commented] (LANG-1544) MethodUtils.invokeMethod NullPointerException in case of null in args list
[
https://issues.apache.org/jira/browse/LANG-1544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17125222#comment-17125222
]
Robert Konior commented on LANG-1544:
-
Nice, but can you assign this task? :)
> MethodUtils.invokeMethod NullPointerException in case of null in args list
> --
>
> Key: LANG-1544
> URL: https://issues.apache.org/jira/browse/LANG-1544
> Project: Commons Lang
> Issue Type: Bug
> Components: lang.reflect.*
>Affects Versions: 3.10
>Reporter: Peter Nagy
>Priority: Critical
>
> MethodUtils:774
>
> if (classArray[offset].equals(toClassArray[offset])) {
> continue;
> } else if (ClassUtils.isAssignable(classArray[offset], toClassArray[offset],
> true)
>
> cause NPE if classArray[offset] is null. Can you please extend the if
> condition with a null check, like this?
>
> if (classArray[offset] != null &&
> classArray[offset].equals(toClassArray[offset]))
--
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[jira] [Commented] (LANG-1544) MethodUtils.invokeMethod NullPointerException in case of null in args list
[
https://issues.apache.org/jira/browse/LANG-1544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17124880#comment-17124880
]
Peter Nagy commented on LANG-1544:
--
Dear Robert,
if you ask me, you are welcome! :-)
Best regards, Peter
> MethodUtils.invokeMethod NullPointerException in case of null in args list
> --
>
> Key: LANG-1544
> URL: https://issues.apache.org/jira/browse/LANG-1544
> Project: Commons Lang
> Issue Type: Bug
> Components: lang.reflect.*
>Affects Versions: 3.10
>Reporter: Peter Nagy
>Priority: Critical
>
> MethodUtils:774
>
> if (classArray[offset].equals(toClassArray[offset])) {
> continue;
> } else if (ClassUtils.isAssignable(classArray[offset], toClassArray[offset],
> true)
>
> cause NPE if classArray[offset] is null. Can you please extend the if
> condition with a null check, like this?
>
> if (classArray[offset] != null &&
> classArray[offset].equals(toClassArray[offset]))
--
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[jira] [Commented] (LANG-1544) MethodUtils.invokeMethod NullPointerException in case of null in args list
[
https://issues.apache.org/jira/browse/LANG-1544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17121314#comment-17121314
]
Robert Konior commented on LANG-1544:
-
Can I do this ? :)
> MethodUtils.invokeMethod NullPointerException in case of null in args list
> --
>
> Key: LANG-1544
> URL: https://issues.apache.org/jira/browse/LANG-1544
> Project: Commons Lang
> Issue Type: Bug
> Components: lang.reflect.*
>Affects Versions: 3.10
>Reporter: Peter Nagy
>Priority: Critical
>
> MethodUtils:774
>
> if (classArray[offset].equals(toClassArray[offset])) {
> continue;
> } else if (ClassUtils.isAssignable(classArray[offset], toClassArray[offset],
> true)
>
> cause NPE if classArray[offset] is null. Can you please extend the if
> condition with a null check, like this?
>
> if (classArray[offset] != null &&
> classArray[offset].equals(toClassArray[offset]))
--
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[jira] [Commented] (LANG-1544) MethodUtils.invokeMethod NullPointerException in case of null in args list
[
https://issues.apache.org/jira/browse/LANG-1544?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=1733#comment-1733
]
Gary D. Gregory commented on LANG-1544:
---
Hi [~nagy_peter]
Please feel free to provide a PR on GitHub (with a test case.)
> MethodUtils.invokeMethod NullPointerException in case of null in args list
> --
>
> Key: LANG-1544
> URL: https://issues.apache.org/jira/browse/LANG-1544
> Project: Commons Lang
> Issue Type: Bug
> Components: lang.reflect.*
>Affects Versions: 3.10
>Reporter: Peter Nagy
>Priority: Critical
>
> MethodUtils:774
>
> if (classArray[offset].equals(toClassArray[offset])) {
> continue;
> } else if (ClassUtils.isAssignable(classArray[offset], toClassArray[offset],
> true)
>
> cause NPE if classArray[offset] is null. Can you please extend the if
> condition with a null check, like this?
>
> if (classArray[offset] != null &&
> classArray[offset].equals(toClassArray[offset]))
--
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(v8.3.4#803005)
