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https://issues.apache.org/jira/browse/SLIDER-1153?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15373940#comment-15373940
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Jonathan Maron commented on SLIDER-1153:
----------------------------------------
FsDelegationTokenManager can probably be removed from code base at this point.
It was part of a previous token management approach.
> Code issues - 14 null pointer deferences found
> ----------------------------------------------
>
> Key: SLIDER-1153
> URL: https://issues.apache.org/jira/browse/SLIDER-1153
> Project: Slider
> Issue Type: Bug
> Components: other
> Affects Versions: Slider 0.91
> Reporter: Gour Saha
>
> Following possible null pointer dereferences found in the code needs to be
> fixed.
> h6.
> slider-core/src/main/java/org/apache/slider/server/appmaster/state/AppState.java
> {code}
> 819 ProviderRole dynamicRole = createDynamicProviderRole(newName,
> name, component);
> {code}
> dereference: Dereferencing a pointer that might be null component when
> calling createDynamicProviderRole
> {code}
> 836 roleHistory.addNewRole(roleStatus);
> {code}
> null_method_call: Calling a method on null object roleHistory
> {code}
> 1290 return roleHistory.requestContainerForRole(role).getIssuedRequest();
> {code}
> null_method_call: Calling a method on null object
> roleHistory.requestContainerForRole(role)
> h6. slider-core/src/main/java/org/apache/slider/client/SliderClient.java
> {code}
> 960 char[] newPassword2 = br.readLine().toCharArray();
> {code}
> null_method_call: Calling a method on null object br.readLine()
> {code}
> 3679 Path subPath = new Path(path1,
> appReport.getApplicationId().toString()
> 3680 + "/agent");
> {code}
> null_method_call: Calling a method on null object appReport.
> {code}
> 3795 Path subPath = new Path(path1,
> appReport.getApplicationId().toString()
> 3796 + "/agent");
> 3797 imagePath = subPath.toString();
> {code}
> null_method_call: Calling a method on null object appReport.
> h6. slider-core/src/main/java/org/apache/slider/common/tools/SliderUtils.java
> {code}
> 1035 return !(address.getHostString().equals("0.0.0.0"));
> {code}
> null_method_call: Calling a method on null object address.getHostString()
> {code}
> 1422 for (String entry : confDirEntries) {
> {code}
> null_array_length: Accessing length of null array confDirEntries
> h6.
> slider-core/src/main/java/org/apache/slider/common/tools/CoreFileSystem.java
> {code}
> 682 Path[] localFilePaths = new Path[localFiles.length];
> {code}
> null_array_length: Accessing length of null array localFiles
> h6.
> slider-core/src/main/java/org/apache/slider/server/services/security/FsDelegationTokenManager.java
> {code}
> 159 tokenExpiryTime = CredentialUtils.getTokenExpiryTime(token);
> {code}
> dereference: Dereferencing a pointer that might be null token when calling
> getTokenExpiryTime
> {code}
> 237 currentUser.addToken(token.getService(), token);
> {code}
> null_method_call: Calling a method on null object token
> h6.
> slider-core/src/main/java/org/apache/slider/server/appmaster/rpc/SliderIPCService.java
> {code}
> 237 result = cd.toJsonString();
> {code}
> null_method_call: Calling a method on null object cd
> h6.
> slider-core/src/main/java/org/apache/slider/server/appmaster/actions/RenewingAction.java
> {code}
> 66 Preconditions.checkArgument(action != null, "null actions");
> {code}
> check_after_deref: Null-checking action suggests that it may be null, but it
> has already been dereferenced on all paths leading to the check.
> h6.
> slider-core/src/main/java/org/apache/slider/core/launch/SerializedApplicationReport.java
> {code}
> 70 this.applicationAttemptId =
> report.getCurrentApplicationAttemptId().toString();
> {code}
> null_method_call: Calling a method on null object
> report.getCurrentApplicationAttemptId()
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