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Disallow null pointer in data field of String #900

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Merged
merged 1 commit into from
Jun 5, 2017
Merged

Disallow null pointer in data field of String #900

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12 changes: 11 additions & 1 deletion src/java_bytecode/java_object_factory.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -418,7 +418,17 @@ void java_object_factoryt::gen_nondet_init(
create_dynamic_objects,
NO_UPDATE_IN_PLACE);

if(assume_non_null)
// Determine whether the pointer can be null.
// In particular the array field of a String should not be null.
bool not_null=
assume_non_null ||
((class_identifier=="java.lang.String" ||
class_identifier=="java.lang.StringBuilder" ||
class_identifier=="java.lang.StringBuffer" ||
class_identifier=="java.lang.CharSequence") &&
subtype.id()==ID_array);

if(not_null)
{
// Add the following code to assignments:
// <expr> = <aoe>;
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