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[starvation] fix inner class tests

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Summary: Use more informative method names, and add comments explaining the logic behind each test.  Correct two cases which are FPs instead of legitimate reports.

Reviewed By: artempyanykh

Differential Revision: D19465227

fbshipit-source-id: 29332e2b9
master
Nikos Gorogiannis 5 years ago committed by Facebook Github Bot
parent 895ac9c41c
commit 4e45a62d3c
2 changed files with 25 additions and 17 deletions
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34
infer/tests/codetoanalyze/java/starvation/InnerClass.java
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@ -6,46 +6,54 @@
*/
class InnerClass {
// shouldn't be flagged
// we don't know that [a.this$0 == this] and even if it were
// this will simply lock this twice
synchronized void outerInnerOk(InnerClassA a) {
a.foo();
a.lockOuter();
}
synchronized void bar() {}
synchronized void lockOuter() {}
synchronized void outerInnerBad(InnerClassA a) {
a.baz();
// following is flagged currently but shouldn't
// we don't known that [a.this$0 == this]!
synchronized void FP_outerInnerOk(InnerClassA a) {
a.lockInner();
}
class InnerClassA {
void foo() {
void lockOuter() {
synchronized (InnerClass.this) {
}
}
void outerInnerOk() {
synchronized (InnerClass.this) {
InnerClass.this.bar();
InnerClass.this.lockOuter();
}
}
synchronized void baz() {}
synchronized void lockInner() {}
synchronized void innerOuterBad() {
InnerClass.this.bar();
InnerClass.this.lockOuter();
}
// ctrs generate different access paths so test these too
// following should not be flagged
// constructors generate different access paths so test these too
// TODO these tests do not generate yet different access paths to the above :(
// following should not be flagged -- it's a double lock on [this.this$0]
InnerClassA() {
synchronized (InnerClass.this) {
InnerClass.this.bar();
InnerClass.this.lockOuter();
}
}
// following should be flagged with outer_inner_bad()
// following would be flagged with outerInnerBad but should not
// because [this] is not accessible yet to any other thread!
InnerClassA(Object o) {
synchronized (this) {
InnerClass.this.bar();
InnerClass.this.lockOuter();
}
}
}

8
infer/tests/codetoanalyze/java/starvation/issues.exp
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@ -13,10 +13,10 @@ codetoanalyze/java/starvation/FutureGet.java, FutureGet.getTimeoutOneDayBad():vo
codetoanalyze/java/starvation/FutureGet.java, FutureGet.getTimeoutOneHourBad():void, 59, STARVATION, no_bucket, ERROR, [`void FutureGet.getTimeoutOneHourBad()`,calls `Object Future.get(long,TimeUnit)`]
codetoanalyze/java/starvation/IndirectBlock.java, IndirectBlock.takeExpensiveLockOnUiThreadBad():void, 23, STARVATION, no_bucket, ERROR, [[Trace 1] `void IndirectBlock.takeExpensiveLockOnUiThreadBad()`, locks `this.expensiveLock` in `class IndirectBlock`,[Trace 2] `void IndirectBlock.doTransactUnderLock()`, locks `this.expensiveLock` in `class IndirectBlock`,calls `boolean Binder.transact(int,Parcel,Parcel,int)`]
codetoanalyze/java/starvation/IndirectBlock.java, IndirectBlock.takeRemoteExpensiveLockOnUiThreadBad(IndirectInterproc):void, 35, STARVATION, no_bucket, ERROR, [[Trace 1] `void IndirectBlock.takeRemoteExpensiveLockOnUiThreadBad(IndirectInterproc)`,Method call: `void IndirectInterproc.takeLock()`, locks `this` in `class IndirectInterproc`,[Trace 2] `void IndirectInterproc.doTransactUnderLock(Binder)`, locks `this` in `class IndirectInterproc`,calls `boolean Binder.transact(int,Parcel,Parcel,int)`]
codetoanalyze/java/starvation/InnerClass.java, InnerClass$InnerClassA.<init>(InnerClass,java.lang.Object), 47, DEADLOCK, no_bucket, ERROR, [[Trace 1] `InnerClass$InnerClassA.<init>(InnerClass,Object)`, locks `this` in `class InnerClass$InnerClassA`,Method call: `void InnerClass.bar()`, locks `this` in `class InnerClass`,[Trace 2] `void InnerClass.outerInnerBad(InnerClass$InnerClassA)`, locks `this` in `class InnerClass`,Method call: `void InnerClass$InnerClassA.baz()`, locks `this` in `class InnerClass$InnerClassA`]
codetoanalyze/java/starvation/InnerClass.java, InnerClass$InnerClassA.innerOuterBad():void, 34, DEADLOCK, no_bucket, ERROR, [[Trace 1] `void InnerClass$InnerClassA.innerOuterBad()`, locks `this` in `class InnerClass$InnerClassA`,Method call: `void InnerClass.bar()`, locks `this` in `class InnerClass`,[Trace 2] `void InnerClass.outerInnerBad(InnerClass$InnerClassA)`, locks `this` in `class InnerClass`,Method call: `void InnerClass$InnerClassA.baz()`, locks `this` in `class InnerClass$InnerClassA`]
codetoanalyze/java/starvation/InnerClass.java, InnerClass.outerInnerBad(InnerClass$InnerClassA):void, 16, DEADLOCK, no_bucket, ERROR, [[Trace 1] `void InnerClass.outerInnerBad(InnerClass$InnerClassA)`, locks `this` in `class InnerClass`,Method call: `void InnerClass$InnerClassA.baz()`, locks `this` in `class InnerClass$InnerClassA`,[Trace 2] `InnerClass$InnerClassA.<init>(InnerClass,Object)`, locks `this` in `class InnerClass$InnerClassA`,Method call: `void InnerClass.bar()`, locks `this` in `class InnerClass`]
codetoanalyze/java/starvation/InnerClass.java, InnerClass.outerInnerBad(InnerClass$InnerClassA):void, 16, DEADLOCK, no_bucket, ERROR, [[Trace 1] `void InnerClass.outerInnerBad(InnerClass$InnerClassA)`, locks `this` in `class InnerClass`,Method call: `void InnerClass$InnerClassA.baz()`, locks `this` in `class InnerClass$InnerClassA`,[Trace 2] `void InnerClass$InnerClassA.innerOuterBad()`, locks `this` in `class InnerClass$InnerClassA`,Method call: `void InnerClass.bar()`, locks `this` in `class InnerClass`]
codetoanalyze/java/starvation/InnerClass.java, InnerClass$InnerClassA.<init>(InnerClass,java.lang.Object), 55, DEADLOCK, no_bucket, ERROR, [[Trace 1] `InnerClass$InnerClassA.<init>(InnerClass,Object)`, locks `this` in `class InnerClass$InnerClassA`,Method call: `void InnerClass.lockOuter()`, locks `this` in `class InnerClass`,[Trace 2] `void InnerClass.FP_outerInnerOk(InnerClass$InnerClassA)`, locks `this` in `class InnerClass`,Method call: `void InnerClass$InnerClassA.lockInner()`, locks `this` in `class InnerClass$InnerClassA`]
codetoanalyze/java/starvation/InnerClass.java, InnerClass$InnerClassA.innerOuterBad():void, 39, DEADLOCK, no_bucket, ERROR, [[Trace 1] `void InnerClass$InnerClassA.innerOuterBad()`, locks `this` in `class InnerClass$InnerClassA`,Method call: `void InnerClass.lockOuter()`, locks `this` in `class InnerClass`,[Trace 2] `void InnerClass.FP_outerInnerOk(InnerClass$InnerClassA)`, locks `this` in `class InnerClass`,Method call: `void InnerClass$InnerClassA.lockInner()`, locks `this` in `class InnerClass$InnerClassA`]
codetoanalyze/java/starvation/InnerClass.java, InnerClass.FP_outerInnerOk(InnerClass$InnerClassA):void, 21, DEADLOCK, no_bucket, ERROR, [[Trace 1] `void InnerClass.FP_outerInnerOk(InnerClass$InnerClassA)`, locks `this` in `class InnerClass`,Method call: `void InnerClass$InnerClassA.lockInner()`, locks `this` in `class InnerClass$InnerClassA`,[Trace 2] `InnerClass$InnerClassA.<init>(InnerClass,Object)`, locks `this` in `class InnerClass$InnerClassA`,Method call: `void InnerClass.lockOuter()`, locks `this` in `class InnerClass`]
codetoanalyze/java/starvation/InnerClass.java, InnerClass.FP_outerInnerOk(InnerClass$InnerClassA):void, 21, DEADLOCK, no_bucket, ERROR, [[Trace 1] `void InnerClass.FP_outerInnerOk(InnerClass$InnerClassA)`, locks `this` in `class InnerClass`,Method call: `void InnerClass$InnerClassA.lockInner()`, locks `this` in `class InnerClass$InnerClassA`,[Trace 2] `void InnerClass$InnerClassA.innerOuterBad()`, locks `this` in `class InnerClass$InnerClassA`,Method call: `void InnerClass.lockOuter()`, locks `this` in `class InnerClass`]
codetoanalyze/java/starvation/Interclass.java, Interclass.interclass1Bad(InterclassA):void, 10, DEADLOCK, no_bucket, ERROR, [[Trace 1] `void Interclass.interclass1Bad(InterclassA)`, locks `this` in `class Interclass`,Method call: `void InterclassA.interclass1Bad()`, locks `this` in `class InterclassA`,[Trace 2] `void InterclassA.interclass2Bad(Interclass)`, locks `this` in `class InterclassA`,Method call: `void Interclass.interclass2Bad()`, locks `this` in `class Interclass`]
codetoanalyze/java/starvation/Interclass.java, InterclassA.interclass2Bad(Interclass):void, 37, DEADLOCK, no_bucket, ERROR, [[Trace 1] `void InterclassA.interclass2Bad(Interclass)`, locks `this` in `class InterclassA`,Method call: `void Interclass.interclass2Bad()`, locks `this` in `class Interclass`,[Trace 2] `void Interclass.interclass1Bad(InterclassA)`, locks `this` in `class Interclass`,Method call: `void InterclassA.interclass1Bad()`, locks `this` in `class InterclassA`]
codetoanalyze/java/starvation/Interproc.java, Interproc.interproc1Bad(InterprocA):void, 10, DEADLOCK, no_bucket, ERROR, [[Trace 1] `void Interproc.interproc1Bad(InterprocA)`, locks `this` in `class Interproc`,Method call: `void Interproc.interproc2Bad(InterprocA)`, locks `b` in `class InterprocA`,[Trace 2] `void InterprocA.interproc1Bad(Interproc)`, locks `this` in `class InterprocA`,Method call: `void InterprocA.interproc2Bad(Interproc)`, locks `d` in `class Interproc`]

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