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[nullsafe] Add a test for field-overannotated warning

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Summary:
Turns out, we did not have such a test in place.
Known issue: we report over-annotated warnings for each fields N times,
one per constructor, which is wrong.

Reviewed By: artempyanykh

Differential Revision: D17574791

fbshipit-source-id: def992691
master
Mitya Lyubarskiy 5 years ago committed by Facebook Github Bot
parent df5ccc1b10
commit c472e95d72
3 changed files with 68 additions and 0 deletions
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55
infer/tests/codetoanalyze/java/nullsafe-default/FieldOverAnnotated.java
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@ -0,0 +1,55 @@
/*
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
package codetoanalyze.java.nullsafe_default;
import javax.annotation.Nullable;
/**
* The rule: if a nullable field is non-conditionally initialized in all constructors, it is
* overannotated.
*/
public class FieldOverAnnotated {
@Nullable String initializedInAllConstructorsIsBAD;
// if there are branches, but the field is initilized in all branches,
// it is still overannotated.
@Nullable String initilizedInAllConstructorsAndAllBranchesIsBAD;
@Nullable String initiliazedInSomeConstructorsIsOK;
@Nullable String conditionallyInitializedIsOK;
@Nullable String notInitializedIsOK;
// False positive: we set it is @Nullable so this is NOT overannotated but the issue is recorded.
@Nullable String FP_initializedInAllConstructorsButSetToNullInAPublicMethodShouldBeOK;
FieldOverAnnotated(int a) {
initializedInAllConstructorsIsBAD = "";
FP_initializedInAllConstructorsButSetToNullInAPublicMethodShouldBeOK = "";
if (a == 0) {
// We initialize it in the other constructor, but here
// we initialize it only conditionally, hence @Nullable annotation is justified.
conditionallyInitializedIsOK = "";
}
// check that initialization from both branches still counts as overannotated
if (a == 1) {
initilizedInAllConstructorsAndAllBranchesIsBAD = "";
} else {
initilizedInAllConstructorsAndAllBranchesIsBAD = "";
}
initiliazedInSomeConstructorsIsOK = "";
}
FieldOverAnnotated(int a, int b) {
initializedInAllConstructorsIsBAD = "";
FP_initializedInAllConstructorsButSetToNullInAPublicMethodShouldBeOK = "";
initilizedInAllConstructorsAndAllBranchesIsBAD = "";
conditionallyInitializedIsOK = "";
}
public void setToNull() {
// False positive: we set it is @Nullable so this is NOT overannotated but
// the issue is recorded.
FP_initializedInAllConstructorsButSetToNullInAPublicMethodShouldBeOK = null;
}
}

1
infer/tests/codetoanalyze/java/nullsafe-default/Makefile
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@ -8,6 +8,7 @@ TESTS_DIR = ../../..
INFER_OPTIONS = \
--eradicate-only \
--eradicate-return-over-annotated \
--eradicate-field-over-annotated \
--eradicate-condition-redundant \
--debug-exceptions
INFERPRINT_OPTIONS = --issues-tests

12
infer/tests/codetoanalyze/java/nullsafe-default/issues.exp
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@ -1,9 +1,11 @@
codetoanalyze/java/nullsafe-default/ButterKnife.java, codetoanalyze.java.nullsafe_default.ButterKnife$TestNotInitialized.<init>(codetoanalyze.java.nullsafe_default.ButterKnife), 0, ERADICATE_FIELD_NOT_INITIALIZED, no_bucket, WARNING, [Field `ButterKnife$TestNotInitialized.notInitializedNormalIsBAD` is not initialized in the constructor and is not declared `@Nullable`]
codetoanalyze/java/nullsafe-default/ButterKnife.java, codetoanalyze.java.nullsafe_default.ButterKnife.<init>(), 0, ERADICATE_FIELD_OVER_ANNOTATED, no_bucket, WARNING, [Field `ButterKnife.nullable` is always initialized in the constructor but is declared `@Nullable`]
codetoanalyze/java/nullsafe-default/ButterKnife.java, codetoanalyze.java.nullsafe_default.ButterKnife.assignNullToNormalIsBAD():void, 1, ERADICATE_FIELD_NOT_NULLABLE, no_bucket, WARNING, [Field `ButterKnife.normal` can be null but is not declared `@Nullable`. (Origin: null constant at line 76)]
codetoanalyze/java/nullsafe-default/ButterKnife.java, codetoanalyze.java.nullsafe_default.ButterKnife.convertingToNotNullableForNullableIsBAD():java.lang.String, 0, ERADICATE_RETURN_NOT_NULLABLE, no_bucket, WARNING, [Method `convertingToNotNullableForNullableIsBAD()` may return null but it is not annotated with `@Nullable`. (Origin: field ButterKnife.nullable at line 47)]
codetoanalyze/java/nullsafe-default/ButterKnife.java, codetoanalyze.java.nullsafe_default.ButterKnife.dereferencingNullableIsBAD():void, 1, ERADICATE_NULLABLE_DEREFERENCE, no_bucket, WARNING, [The value of `ButterKnife.nullable` in the call to `length()` is nullable and is not locally checked for null. (Origin: field ButterKnife.nullable at line 33)]
codetoanalyze/java/nullsafe-default/ButterKnife.java, codetoanalyze.java.nullsafe_default.ButterKnife.passingToNullableForNullableIsBAD():void, 1, ERADICATE_PARAMETER_NOT_NULLABLE, no_bucket, WARNING, [`ButterKnife.f(...)` needs a non-null value in parameter 1 but argument `ButterKnife.nullable` can be null. (Origin: field ButterKnife.nullable at line 61)]
codetoanalyze/java/nullsafe-default/CapturedParam.java, codetoanalyze.java.nullsafe_default.CapturedParam.dereferencingNullableIsBAD(java.lang.Object):void, 1, ERADICATE_NULLABLE_DEREFERENCE, no_bucket, WARNING, [The value of `parameter` in the call to `toString()` is nullable and is not locally checked for null. (Origin: method parameter parameter)]
codetoanalyze/java/nullsafe-default/ConditionRedundant.java, codetoanalyze.java.nullsafe_default.ConditionRedundant.<init>(), 0, ERADICATE_FIELD_OVER_ANNOTATED, no_bucket, WARNING, [Field `ConditionRedundant.fieldNullable` is always initialized in the constructor but is declared `@Nullable`]
codetoanalyze/java/nullsafe-default/ConditionRedundant.java, codetoanalyze.java.nullsafe_default.ConditionRedundant.FP_ternary_NonnullInOneBranch_SecondBranch_ShouldBeOK(java.lang.String,java.lang.String,int):void, 2, ERADICATE_CONDITION_REDUNDANT, no_bucket, WARNING, [The condition s2 is always false according to the existing annotations.]
codetoanalyze/java/nullsafe-default/ConditionRedundant.java, codetoanalyze.java.nullsafe_default.ConditionRedundant.assertNotNull_NonnullIsBAD(java.lang.String):void, 1, ERADICATE_CONDITION_REDUNDANT, no_bucket, WARNING, [The condition (s!=null) is always true according to the existing annotations.]
codetoanalyze/java/nullsafe-default/ConditionRedundant.java, codetoanalyze.java.nullsafe_default.ConditionRedundant.checkArgument_NonnullIsBAd(java.lang.String):void, 1, ERADICATE_CONDITION_REDUNDANT, no_bucket, WARNING, [The condition s is always true according to the existing annotations.]
@ -55,6 +57,7 @@ codetoanalyze/java/nullsafe-default/CustomAnnotations.java, codetoanalyze.java.n
codetoanalyze/java/nullsafe-default/FieldNotInitialized.java, codetoanalyze.java.nullsafe_default.FieldNotInitialized$InitCircular.<init>(codetoanalyze.java.nullsafe_default.FieldNotInitialized), 0, ERADICATE_FIELD_NOT_INITIALIZED, no_bucket, WARNING, [Field `FieldNotInitialized$InitCircular.bad` is not initialized in the constructor and is not declared `@Nullable`]
codetoanalyze/java/nullsafe-default/FieldNotInitialized.java, codetoanalyze.java.nullsafe_default.FieldNotInitialized$InitCircular.<init>(codetoanalyze.java.nullsafe_default.FieldNotInitialized), 0, ERADICATE_FIELD_NOT_INITIALIZED, no_bucket, WARNING, [Field `FieldNotInitialized$InitCircular.stillBad` is not initialized in the constructor and is not declared `@Nullable`]
codetoanalyze/java/nullsafe-default/FieldNotInitialized.java, codetoanalyze.java.nullsafe_default.FieldNotInitialized$InitIfNull.<init>(codetoanalyze.java.nullsafe_default.FieldNotInitialized), 0, ERADICATE_FIELD_NOT_INITIALIZED, no_bucket, WARNING, [Field `FieldNotInitialized$InitIfNull.shouldBeGood_FIXME` is not initialized in the constructor and is not declared `@Nullable`]
codetoanalyze/java/nullsafe-default/FieldNotInitialized.java, codetoanalyze.java.nullsafe_default.FieldNotInitialized$InitWithOtherClass$OtherClass.<init>(codetoanalyze.java.nullsafe_default.FieldNotInitialized$InitWithOtherClass), 0, ERADICATE_FIELD_OVER_ANNOTATED, no_bucket, WARNING, [Field `FieldNotInitialized$InitWithOtherClass$OtherClass.nullable` is always initialized in the constructor but is declared `@Nullable`]
codetoanalyze/java/nullsafe-default/FieldNotInitialized.java, codetoanalyze.java.nullsafe_default.FieldNotInitialized$InitWithOtherClass.<init>(codetoanalyze.java.nullsafe_default.FieldNotInitialized,codetoanalyze.java.nullsafe_default.FieldNotInitialized$InitWithOtherClass$OtherClass), 1, ERADICATE_FIELD_NOT_NULLABLE, no_bucket, WARNING, [Field `FieldNotInitialized$InitWithOtherClass.bad` can be null but is not declared `@Nullable`. (Origin: field FieldNotInitialized$InitWithOtherClass$OtherClass.nullable at line 182)]
codetoanalyze/java/nullsafe-default/FieldNotInitialized.java, codetoanalyze.java.nullsafe_default.FieldNotInitialized$InitWithTheSameClass.<init>(codetoanalyze.java.nullsafe_default.FieldNotInitialized,codetoanalyze.java.nullsafe_default.FieldNotInitialized$InitWithTheSameClass), 0, ERADICATE_FIELD_NOT_INITIALIZED, no_bucket, WARNING, [Field `FieldNotInitialized$InitWithTheSameClass.bad` is not initialized in the constructor and is not declared `@Nullable`]
codetoanalyze/java/nullsafe-default/FieldNotInitialized.java, codetoanalyze.java.nullsafe_default.FieldNotInitialized$InitializationOrder.<init>(codetoanalyze.java.nullsafe_default.FieldNotInitialized,int), 0, ERADICATE_FIELD_NOT_INITIALIZED, no_bucket, WARNING, [Field `FieldNotInitialized$InitializationOrder.o1` is not initialized in the constructor and is not declared `@Nullable`]
@ -81,11 +84,18 @@ codetoanalyze/java/nullsafe-default/FieldNotInitialized.java, codetoanalyze.java
codetoanalyze/java/nullsafe-default/FieldNotInitialized.java, codetoanalyze.java.nullsafe_default.TestKnownInitializers$KnownInitializers.<init>(codetoanalyze.java.nullsafe_default.TestKnownInitializers), 0, ERADICATE_FIELD_NOT_INITIALIZED, no_bucket, WARNING, [Field `TestKnownInitializers$KnownInitializers.initInUnknownMethodIsBAD` is not initialized in the constructor and is not declared `@Nullable`]
codetoanalyze/java/nullsafe-default/FieldNotInitialized.java, codetoanalyze.java.nullsafe_default.TestKnownInitializers$SimplyOnCreateWontDoATrick.<init>(codetoanalyze.java.nullsafe_default.TestKnownInitializers), 0, ERADICATE_FIELD_NOT_INITIALIZED, no_bucket, WARNING, [Field `TestKnownInitializers$SimplyOnCreateWontDoATrick.initInUnknownMethodIsBAD` is not initialized in the constructor and is not declared `@Nullable`]
codetoanalyze/java/nullsafe-default/FieldNotNullable.java, codetoanalyze.java.nullsafe_default.CanAssignNullInCleanupMethods.assignNullInAnyOtherMethodIsBAD():void, 1, ERADICATE_FIELD_NOT_NULLABLE, no_bucket, WARNING, [Field `CanAssignNullInCleanupMethods.someObject` can be null but is not declared `@Nullable`. (Origin: null constant at line 44)]
codetoanalyze/java/nullsafe-default/FieldNotNullable.java, codetoanalyze.java.nullsafe_default.FieldNotNullable.<init>(), 0, ERADICATE_FIELD_OVER_ANNOTATED, no_bucket, WARNING, [Field `FieldNotNullable.nullable` is always initialized in the constructor but is declared `@Nullable`]
codetoanalyze/java/nullsafe-default/FieldNotNullable.java, codetoanalyze.java.nullsafe_default.FieldNotNullable.<init>(), 4, ERADICATE_FIELD_NOT_NULLABLE, no_bucket, WARNING, [Field `FieldNotNullable.initializeNonNullableWithNullIsBAD` can be null but is not declared `@Nullable`. (Origin: null constant at line 52)]
codetoanalyze/java/nullsafe-default/FieldNotNullable.java, codetoanalyze.java.nullsafe_default.FieldNotNullable.getNullable():java.lang.String, 0, ERADICATE_RETURN_OVER_ANNOTATED, no_bucket, WARNING, [Method `getNullable()` is annotated with `@Nullable` but never returns null.]
codetoanalyze/java/nullsafe-default/FieldNotNullable.java, codetoanalyze.java.nullsafe_default.FieldNotNullable.setNullableToNotNullableIsBAD(java.lang.String):void, 1, ERADICATE_FIELD_NOT_NULLABLE, no_bucket, WARNING, [Field `FieldNotNullable.notNullable` can be null but is not declared `@Nullable`. (Origin: null constant at line 65)]
codetoanalyze/java/nullsafe-default/FieldNotNullable.java, codetoanalyze.java.nullsafe_default.FieldNotNullable.setNullableToNotNullableIsBAD(java.lang.String):void, 2, ERADICATE_FIELD_NOT_NULLABLE, no_bucket, WARNING, [Field `FieldNotNullable.notNullable` can be null but is not declared `@Nullable`. (Origin: method parameter s)]
codetoanalyze/java/nullsafe-default/FieldNotNullable.java, codetoanalyze.java.nullsafe_default.FieldNotNullable.setNullableToNotNullableIsBAD(java.lang.String):void, 3, ERADICATE_FIELD_NOT_NULLABLE, no_bucket, WARNING, [Field `FieldNotNullable.notNullable` can be null but is not declared `@Nullable`. (Origin: call to getNullable() at line 67)]
codetoanalyze/java/nullsafe-default/FieldOverAnnotated.java, codetoanalyze.java.nullsafe_default.FieldOverAnnotated.<init>(int), 0, ERADICATE_FIELD_OVER_ANNOTATED, no_bucket, WARNING, [Field `FieldOverAnnotated.FP_initializedInAllConstructorsButSetToNullInAPublicMethodShouldBeOK` is always initialized in the constructor but is declared `@Nullable`]
codetoanalyze/java/nullsafe-default/FieldOverAnnotated.java, codetoanalyze.java.nullsafe_default.FieldOverAnnotated.<init>(int), 0, ERADICATE_FIELD_OVER_ANNOTATED, no_bucket, WARNING, [Field `FieldOverAnnotated.initializedInAllConstructorsIsBAD` is always initialized in the constructor but is declared `@Nullable`]
codetoanalyze/java/nullsafe-default/FieldOverAnnotated.java, codetoanalyze.java.nullsafe_default.FieldOverAnnotated.<init>(int), 0, ERADICATE_FIELD_OVER_ANNOTATED, no_bucket, WARNING, [Field `FieldOverAnnotated.initilizedInAllConstructorsAndAllBranchesIsBAD` is always initialized in the constructor but is declared `@Nullable`]
codetoanalyze/java/nullsafe-default/FieldOverAnnotated.java, codetoanalyze.java.nullsafe_default.FieldOverAnnotated.<init>(int,int), 0, ERADICATE_FIELD_OVER_ANNOTATED, no_bucket, WARNING, [Field `FieldOverAnnotated.FP_initializedInAllConstructorsButSetToNullInAPublicMethodShouldBeOK` is always initialized in the constructor but is declared `@Nullable`]
codetoanalyze/java/nullsafe-default/FieldOverAnnotated.java, codetoanalyze.java.nullsafe_default.FieldOverAnnotated.<init>(int,int), 0, ERADICATE_FIELD_OVER_ANNOTATED, no_bucket, WARNING, [Field `FieldOverAnnotated.initializedInAllConstructorsIsBAD` is always initialized in the constructor but is declared `@Nullable`]
codetoanalyze/java/nullsafe-default/FieldOverAnnotated.java, codetoanalyze.java.nullsafe_default.FieldOverAnnotated.<init>(int,int), 0, ERADICATE_FIELD_OVER_ANNOTATED, no_bucket, WARNING, [Field `FieldOverAnnotated.initilizedInAllConstructorsAndAllBranchesIsBAD` is always initialized in the constructor but is declared `@Nullable`]
codetoanalyze/java/nullsafe-default/InconsistentSubclassAnnotation.java, codetoanalyze.java.nullsafe_default.ExtendsExternalLibrary.externalMethod2(java.lang.Object):void, 0, ERADICATE_INCONSISTENT_SUBCLASS_PARAMETER_ANNOTATION, no_bucket, WARNING, [First parameter `object` of method `ExtendsExternalLibrary.externalMethod2(...)` is not `@Nullable` but is declared `@Nullable`in the parent class method `SomeExternalClass.externalMethod2(...)`.]
codetoanalyze/java/nullsafe-default/InconsistentSubclassAnnotation.java, codetoanalyze.java.nullsafe_default.InconsistentSubclassAnnotation.implementInAnotherFile(java.lang.String):java.lang.String, 0, ERADICATE_INCONSISTENT_SUBCLASS_PARAMETER_ANNOTATION, no_bucket, WARNING, [First parameter `s` of method `InconsistentSubclassAnnotation.implementInAnotherFile(...)` is not `@Nullable` but is declared `@Nullable`in the parent class method `InconsistentSubclassAnnotationInterface.implementInAnotherFile(...)`.]
codetoanalyze/java/nullsafe-default/InconsistentSubclassAnnotation.java, codetoanalyze.java.nullsafe_default.InconsistentSubclassAnnotation.overloadedMethod():java.lang.Object, 0, ERADICATE_INCONSISTENT_SUBCLASS_RETURN_ANNOTATION, no_bucket, WARNING, [Method `InconsistentSubclassAnnotation.overloadedMethod()` is annotated with `@Nullable` but overrides unannotated method `InconsistentSubclassAnnotationInterface.overloadedMethod()`.]
@ -126,6 +136,8 @@ codetoanalyze/java/nullsafe-default/NestedFieldAccess.java, codetoanalyze.java.n
codetoanalyze/java/nullsafe-default/NestedFieldAccess.java, codetoanalyze.java.nullsafe_default.NestedFieldAccess$TestNullableChains.param_AccessWithoutNullCheckIsBad(codetoanalyze.java.nullsafe_default.NestedFieldAccess$C):void, 1, ERADICATE_NULLABLE_DEREFERENCE, no_bucket, WARNING, [The value of `c.s` in the call to `length()` is nullable and is not locally checked for null. (Origin: field NestedFieldAccess$C.s at line 65)]
codetoanalyze/java/nullsafe-default/NestedFieldAccess.java, codetoanalyze.java.nullsafe_default.NestedFieldAccess$TestNullableChains.veryDeep_AccessWithoutNullCheckIsBad(codetoanalyze.java.nullsafe_default.NestedFieldAccess$CCC):void, 2, ERADICATE_NULLABLE_DEREFERENCE, no_bucket, WARNING, [The value of `ccc.cc.c.s` in the call to `length()` is nullable and is not locally checked for null. (Origin: field NestedFieldAccess$C.s at line 100)]
codetoanalyze/java/nullsafe-default/NestedFieldAccess.java, codetoanalyze.java.nullsafe_default.NestedFieldAccess$TestNullableChains.veryDeep_IncompleteAccessViaOrEarlyReturnIsBad(codetoanalyze.java.nullsafe_default.NestedFieldAccess$CCC):void, 3, ERADICATE_NULLABLE_DEREFERENCE, no_bucket, WARNING, [The value of `ccc.cc.c.s` in the call to `length()` is nullable and is not locally checked for null. (Origin: field NestedFieldAccess$C.s at line 114)]
codetoanalyze/java/nullsafe-default/NullFieldAccess.java, codetoanalyze.java.nullsafe_default.NullFieldAccess.<init>(), 0, ERADICATE_FIELD_OVER_ANNOTATED, no_bucket, WARNING, [Field `NullFieldAccess.nullable` is always initialized in the constructor but is declared `@Nullable`]
codetoanalyze/java/nullsafe-default/NullFieldAccess.java, codetoanalyze.java.nullsafe_default.NullFieldAccess.<init>(), 0, ERADICATE_FIELD_OVER_ANNOTATED, no_bucket, WARNING, [Field `NullFieldAccess.nullableArray` is always initialized in the constructor but is declared `@Nullable`]
codetoanalyze/java/nullsafe-default/NullFieldAccess.java, codetoanalyze.java.nullsafe_default.NullFieldAccess.testArray():void, 1, ERADICATE_NULLABLE_DEREFERENCE, no_bucket, WARNING, [Object `NullFieldAccess.nullableArray` is nullable and is not locally checked for null when accessing field `length`. (Origin: field NullFieldAccess.nullableArray at line 60)]
codetoanalyze/java/nullsafe-default/NullFieldAccess.java, codetoanalyze.java.nullsafe_default.NullFieldAccess.testArray():void, 2, ERADICATE_NULLABLE_DEREFERENCE, no_bucket, WARNING, [Object `NullFieldAccess.nullableArray` is nullable and is not locally checked for null when accessing element at index `0`. (Origin: field NullFieldAccess.nullableArray at line 60)]
codetoanalyze/java/nullsafe-default/NullFieldAccess.java, codetoanalyze.java.nullsafe_default.NullFieldAccess.testInterface():void, 2, ERADICATE_NULLABLE_DEREFERENCE, no_bucket, WARNING, [The value of `bad` in the call to `toString()` is nullable and is not locally checked for null. (Origin: field NullFieldAccess$I.nullable at line 52)]

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