diff --git a/libpurgeablemem/cpp/include/purgeable_ashmem.h b/libpurgeablemem/cpp/include/purgeable_ashmem.h
index bf5f78e7fa24ecda85b9adc8600ad0b2521ec8a9..8ccfcf421c161c1be48057a8950417c9c02e192e 100644
--- a/libpurgeablemem/cpp/include/purgeable_ashmem.h
+++ b/libpurgeablemem/cpp/include/purgeable_ashmem.h
@@ -58,7 +58,7 @@ protected:
     bool Pin_() override;
     bool Unpin_() override;
     bool IsPurged_() override;
-    bool CreatePurgeableData_() override;
+    bool CreatePurgeableData_();
     void AfterRebuildSucc_() override;
     std::string ToString_() const override;
 };
diff --git a/libpurgeablemem/cpp/include/purgeable_mem.h b/libpurgeablemem/cpp/include/purgeable_mem.h
index 85d617d61b016d6f7c823a40e9189fe631487478..474aa7c21c2eea31e8a420eb64e691e8cdcfcfb3 100644
--- a/libpurgeablemem/cpp/include/purgeable_mem.h
+++ b/libpurgeablemem/cpp/include/purgeable_mem.h
@@ -38,7 +38,7 @@ protected:
     bool Pin_() override;
     bool Unpin_() override;
     bool IsPurged_() override;
-    bool CreatePurgeableData_() override;
+    bool CreatePurgeableData_();
     void AfterRebuildSucc_() override;
     std::string ToString_() const override;
 };
diff --git a/libpurgeablemem/cpp/include/purgeable_mem_base.h b/libpurgeablemem/cpp/include/purgeable_mem_base.h
index 2c2a8e0cd3f9b3943124ee058c65dca69f94a337..b11133ff3a0267bddb611e1306fe9eabf2aaeb31 100644
--- a/libpurgeablemem/cpp/include/purgeable_mem_base.h
+++ b/libpurgeablemem/cpp/include/purgeable_mem_base.h
@@ -110,7 +110,6 @@ protected:
     virtual bool Pin_();
     virtual bool Unpin_();
     virtual bool IsPurged_();
-    virtual bool CreatePurgeableData_();
     virtual void AfterRebuildSucc_();
     virtual std::string ToString_() const;
 };
diff --git a/libpurgeablemem/cpp/src/purgeable_mem_base.cpp b/libpurgeablemem/cpp/src/purgeable_mem_base.cpp
index 1e6d541d941509e10303badf9d7334f23857f087..ead92454d0500a67bc81dfd7a7323183097c37ef 100644
--- a/libpurgeablemem/cpp/src/purgeable_mem_base.cpp
+++ b/libpurgeablemem/cpp/src/purgeable_mem_base.cpp
@@ -107,7 +107,7 @@ void PurgeableMemBase::EndRead()
 bool PurgeableMemBase::BeginWrite()
 {
     PM_HILOG_DEBUG(LOG_CORE, "%{public}s %{public}s", __func__, ToString_().c_str());
-    if (dataPtr_ == nullptr && !CreatePurgeableData_()) {
+    if (dataPtr_ == nullptr) {
         return false;
     }
     IF_NULL_LOG_ACTION(dataPtr_, "dataPtr is nullptr in BeginWrite", return false);
@@ -211,11 +211,6 @@ bool PurgeableMemBase::BuildContent_()
     return succ;
 }
 
-bool PurgeableMemBase::CreatePurgeableData_()
-{
-    return false;
-}
-
 void PurgeableMemBase::ResizeData(size_t newSize)
 {
 }