diff --git a/CMakeLists.txt b/CMakeLists.txt
index d03bcaec1..6fe754291 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -31,16 +31,16 @@ project(ot-commissioner VERSION 0.2.0)
 
 option(OT_COMM_ANDROID           "Build with Android NDK" OFF)
 option(OT_COMM_APP               "Build the CLI App" ON)
-option(OT_COMM_CCM               "Build with Commercial Commissioning Mode" ON)
+option(OT_COMM_CCM               "Build with Commercial Commissioning Mode" OFF)
 option(OT_COMM_REFERENCE_DEVICE  "Enable features for being a Thread Group reference device" OFF)
 option(OT_COMM_COVERAGE          "Enable coverage reporting" OFF)
 option(OT_COMM_JAVA_BINDING      "Build Java binding" OFF)
 set(OT_COMM_JAVA_BINDING_OUTDIR  "" CACHE STRING "Specify output directory of generated Java source files")
-option(OT_COMM_TEST              "Build tests" ON)
+option(OT_COMM_TEST              "Build tests" OFF)
 option(OT_COMM_WARNING_AS_ERROR  "Treat warning as error" OFF)
 
 if (NOT CMAKE_BUILD_TYPE)
-    set(CMAKE_BUILD_TYPE Debug)
+    set(CMAKE_BUILD_TYPE Release)
 endif()
 
 if(NOT "${CMAKE_CXX_STANDARD}")
diff --git a/android/build-commissioner-libs.sh b/android/build-commissioner-libs.sh
index 1054904d8..804a0d16a 100755
--- a/android/build-commissioner-libs.sh
+++ b/android/build-commissioner-libs.sh
@@ -54,12 +54,14 @@ cmake -GNinja \
     -DBUILD_SHARED_LIBS=OFF \
     -DCMAKE_CXX_STANDARD=11 \
     -DCMAKE_CXX_STANDARD_REQUIRED=ON \
-    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_BUILD_TYPE=MinSizeRel \
     -DOT_COMM_ANDROID=ON \
     -DOT_COMM_JAVA_BINDING=ON \
     -DOT_COMM_APP=OFF \
     -DOT_COMM_TEST=OFF \
     -DOT_COMM_CCM=OFF \
+    -DCMAKE_C_FLAGS="-Os -g0 -DNDEBUG" \
+    -DCMAKE_CXX_FLAGS="-Os -g0 -DNDEBUG" \
     ../..
 
 ninja commissioner-java
@@ -75,9 +77,9 @@ find ./io/openthread/commissioner -name "*.class" | xargs jar cvf ../../libs/lib
 cd ../../../
 
 ## Copy shared native libraries
-cp "$BUILD_DIR"/src/java/libcommissioner-java.so "$BUILD_DIR"/libs
+cp "$BUILD_DIR"/src/java/libcommissioner-java.a "$BUILD_DIR"/libs
 
 mkdir -p openthread_commissioner/service/libs
 mkdir -p openthread_commissioner/service/src/main/jniLibs/"${ANDROID_ABI}"
 cp "$BUILD_DIR"/libs/libotcommissioner.jar openthread_commissioner/service/libs
-cp "$BUILD_DIR"/libs/*.so openthread_commissioner/service/src/main/jniLibs/"${ANDROID_ABI}"
+cp "$BUILD_DIR"/libs/libcommissioner-java.a openthread_commissioner/service/src/main/jniLibs/"${ANDROID_ABI}"
diff --git a/src/common/error_macros.hpp b/src/common/error_macros.hpp
index d04dc81c0..f742b6ed3 100644
--- a/src/common/error_macros.hpp
+++ b/src/common/error_macros.hpp
@@ -41,42 +41,42 @@
 #define ERROR_NONE \
     Error {}
 #define ERROR_CANCELLED(aFormat, ...) \
-    Error { ErrorCode::kCancelled, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kCancelled, "" }
 #define ERROR_INVALID_ARGS(aFormat, ...) \
-    Error { ErrorCode::kInvalidArgs, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kInvalidArgs, "" }
 #define ERROR_INVALID_COMMAND(aFormat, ...) \
-    Error { ErrorCode::kInvalidCommand, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kInvalidCommand, "" }
 #define ERROR_TIMEOUT(aFormat, ...) \
-    Error { ErrorCode::kTimeout, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kTimeout, "" }
 #define ERROR_NOT_FOUND(aFormat, ...) \
-    Error { ErrorCode::kNotFound, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kNotFound, "" }
 #define ERROR_SECURITY(aFormat, ...) \
-    Error { ErrorCode::kSecurity, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kSecurity, "" }
 #define ERROR_UNIMPLEMENTED(aFormat, ...) \
-    Error { ErrorCode::kUnimplemented, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kUnimplemented, "" }
 #define ERROR_BAD_FORMAT(aFormat, ...) \
-    Error { ErrorCode::kBadFormat, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kBadFormat, "" }
 #define ERROR_BUSY(aFormat, ...) \
-    Error { ErrorCode::kBusy, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kBusy, "" }
 #define ERROR_OUT_OF_MEMORY(aFormat, ...) \
-    Error { ErrorCode::kOutOfMemory, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kOutOfMemory, "" }
 #define ERROR_IO_ERROR(aFormat, ...) \
-    Error { ErrorCode::kIOError, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kIOError, "" }
 #define ERROR_IO_BUSY(aFormat, ...) \
-    Error { ErrorCode::kIOBusy, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kIOBusy, "" }
 #define ERROR_ALREADY_EXISTS(aFormat, ...) \
-    Error { ErrorCode::kAlreadyExists, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kAlreadyExists, "" }
 #define ERROR_ABORTED(aFormat, ...) \
-    Error { ErrorCode::kAborted, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kAborted, "" }
 #define ERROR_INVALID_STATE(aFormat, ...) \
-    Error { ErrorCode::kInvalidState, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kInvalidState, "" }
 #define ERROR_REJECTED(aFormat, ...) \
-    Error { ErrorCode::kRejected, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kRejected, "" }
 #define ERROR_COAP_ERROR(aFormat, ...) \
-    Error { ErrorCode::kCoapError, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kCoapError, "" }
 #define ERROR_REGISTRY_ERROR(aFormat, ...) \
-    Error { ErrorCode::kRegistryError, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kRegistryError, "" }
 #define ERROR_UNKNOWN(aFormat, ...) \
-    Error { ErrorCode::kUnknown, fmt::format(FMT_STRING((aFormat)), ##__VA_ARGS__) }
+    Error { ErrorCode::kUnknown, "" }
 
 #endif // ERROR_MACROS_HPP_
diff --git a/src/common/logging.hpp b/src/common/logging.hpp
index 4d6592677..38c486bba 100644
--- a/src/common/logging.hpp
+++ b/src/common/logging.hpp
@@ -55,7 +55,6 @@
 #define LOG(aLevel, aRegion, aFmt, ...)                                     \
     do                                                                      \
     {                                                                       \
-        Log(aLevel, aRegion, fmt::format(FMT_STRING(aFmt), ##__VA_ARGS__)); \
     } while (false)
 
 #define LOG_DEBUG(aRegion, aFmt, ...) LOG(LogLevel::kDebug, aRegion, aFmt, ##__VA_ARGS__)
diff --git a/src/java/CMakeLists.txt b/src/java/CMakeLists.txt
index 57c9edf39..24f3f6781 100644
--- a/src/java/CMakeLists.txt
+++ b/src/java/CMakeLists.txt
@@ -51,7 +51,7 @@ set_property(SOURCE commissioner.i PROPERTY CPLUSPLUS ON)
 set(UseSWIG_TARGET_NAME_PREFERENCE LEGACY)
 
 swig_add_library(commissioner-java
-    TYPE SHARED
+    TYPE STATIC
     LANGUAGE java
     SOURCES commissioner.i)