fix some more checkstyle issues

Author: lukasstadler

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/MMapModuleBuiltins.java

@@ -48,7 +48,6 @@
 import static com.oracle.graal.python.runtime.PosixConstants.PROT_READ;
 import static com.oracle.graal.python.runtime.PosixConstants.PROT_WRITE;
 import static com.oracle.graal.python.runtime.PosixSupportLibrary.ST_SIZE;
-import static com.oracle.graal.python.util.PythonUtils.toTruffleStringUncached;
 import static com.oracle.graal.python.util.PythonUtils.tsLiteral;
 
 import java.util.List;
@@ -65,14 +64,10 @@
 import com.oracle.graal.python.builtins.objects.cext.capi.NativeCAPISymbol;
 import com.oracle.graal.python.builtins.objects.cext.capi.transitions.CApiTransitions.PythonToNativeNode;
 import com.oracle.graal.python.builtins.objects.mmap.PMMap;
-import com.oracle.graal.python.builtins.objects.module.PythonModule;
-import com.oracle.graal.python.lib.PyObjectLookupAttr;
 import com.oracle.graal.python.nodes.ErrorMessages;
-import com.oracle.graal.python.nodes.call.special.CallUnaryMethodNode;
 import com.oracle.graal.python.nodes.function.PythonBuiltinBaseNode;
 import com.oracle.graal.python.nodes.function.builtins.PythonClinicBuiltinNode;
 import com.oracle.graal.python.nodes.function.builtins.clinic.ArgumentClinicProvider;
-import com.oracle.graal.python.nodes.statement.AbstractImportNode;
 import com.oracle.graal.python.runtime.PosixConstants;
 import com.oracle.graal.python.runtime.PosixSupportLibrary;
 import com.oracle.graal.python.runtime.PosixSupportLibrary.PosixException;

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/modules/ctypes/CDataObject.java

@@ -58,7 +58,6 @@
 import com.oracle.truffle.api.nodes.Node;
 import com.oracle.truffle.api.object.Shape;
 import com.oracle.truffle.api.profiles.InlinedConditionProfile;
-import com.oracle.truffle.llvm.spi.NativeTypeLibrary;
 
 @ExportLibrary(PythonBufferAcquireLibrary.class)
 @ExportLibrary(PythonBufferAccessLibrary.class)

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/capi/CApiContext.java

@@ -43,7 +43,6 @@
 import static com.oracle.graal.python.nodes.SpecialAttributeNames.T___FILE__;
 import static com.oracle.graal.python.nodes.SpecialAttributeNames.T___LIBRARY__;
 import static com.oracle.graal.python.nodes.StringLiterals.J_LLVM_LANGUAGE;
-import static com.oracle.graal.python.nodes.StringLiterals.J_NATIVE;
 import static com.oracle.graal.python.nodes.StringLiterals.J_NFI_LANGUAGE;
 
 import java.io.IOException;
@@ -77,11 +76,9 @@
 import com.oracle.graal.python.builtins.objects.cext.structs.CStructAccess;
 import com.oracle.graal.python.builtins.objects.dict.PDict;
 import com.oracle.graal.python.builtins.objects.frame.PFrame;
-import com.oracle.graal.python.builtins.objects.ints.PInt;
 import com.oracle.graal.python.builtins.objects.module.PythonModule;
 import com.oracle.graal.python.builtins.objects.str.PString;
 import com.oracle.graal.python.builtins.objects.thread.PLock;
-import com.oracle.graal.python.builtins.objects.type.PythonBuiltinClass;
 import com.oracle.graal.python.builtins.objects.type.PythonManagedClass;
 import com.oracle.graal.python.nodes.ErrorMessages;
 import com.oracle.graal.python.nodes.IndirectCallNode;
@@ -195,15 +192,6 @@ public static TruffleLogger getLogger(Class<?> clazz) {
         return PythonLanguage.getLogger(LOGGER_CAPI_NAME + "." + clazz.getSimpleName());
     }
 
-    /**
-     * Private dummy constructor just for {@link #LAZY_CONTEXT}.
-     */
-    private CApiContext() {
-        super(null, null, false);
-        primitiveNativeWrapperCache = null;
-        promotedTruffleStringCache = null;
-    }
-
     public CApiContext(PythonContext context, Object llvmLibrary, boolean useNativeBackend) {
         super(context, llvmLibrary, useNativeBackend);
 

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/capi/PyDateTimeCAPIWrapper.java

@@ -48,7 +48,6 @@
 
 import com.oracle.graal.python.builtins.PythonBuiltinClassType;
 import com.oracle.graal.python.builtins.modules.cext.PythonCextBuiltinRegistry;
-import com.oracle.graal.python.builtins.modules.cext.PythonCextBuiltins.CApiBuiltinExecutable;
 import com.oracle.graal.python.builtins.objects.cext.capi.CExtNodes.PCallCapiFunction;
 import com.oracle.graal.python.builtins.objects.cext.capi.transitions.CApiTransitions.PythonToNativeNode;
 import com.oracle.graal.python.builtins.objects.cext.capi.transitions.CApiTransitionsFactory.PythonToNativeNodeGen;

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/capi/PyMemoryViewWrapper.java

@@ -65,8 +65,6 @@
 import com.oracle.truffle.api.dsl.Cached;
 import com.oracle.truffle.api.dsl.GenerateUncached;
 import com.oracle.truffle.api.dsl.Specialization;
-import com.oracle.truffle.api.interop.InteropLibrary;
-import com.oracle.truffle.api.library.ExportLibrary;
 import com.oracle.truffle.api.nodes.Node;
 
 /**

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/structs/CConstants.java

@@ -61,8 +61,7 @@
  */
 public enum CConstants {
     PYLONG_BITS_IN_DIGIT,
-    READONLY,
-    ;
+    READONLY;
 
     @CompilationFinal(dimensions = 1) public static final CConstants[] VALUES = values();
 

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/structs/CFields.java

@@ -320,9 +320,7 @@ public enum CFields {
     PyBaseExceptionObject__traceback(PyObject),
     PyBaseExceptionObject__context(PyObject),
     PyBaseExceptionObject__cause(PyObject),
-    PyBaseExceptionObject__suppress_context(CHAR),
-
-    ;
+    PyBaseExceptionObject__suppress_context(CHAR);
 
     public static final int PyASCIIObject__state_interned_shift = 0;
     public static final int PyASCIIObject__state_kind_shift = 2;

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/cext/structs/CStructs.java

@@ -83,8 +83,7 @@ public enum CStructs {
     PyThreadState,
     wchar_t,
     long__long,
-    Py_ssize_t,
-    ;
+    Py_ssize_t;
 
     @CompilationFinal(dimensions = 1) public static final CStructs[] VALUES = values();
 

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/str/NativeCharSequence.java

@@ -45,9 +45,7 @@
 import java.util.Objects;
 
 import com.oracle.graal.python.PythonLanguage;
-import com.oracle.graal.python.builtins.objects.cext.capi.CExtNodes.PCallCapiFunction;
 import com.oracle.graal.python.builtins.objects.cext.common.CExtCommonNodesFactory.ReadUnicodeArrayNodeGen;
-import com.oracle.graal.python.builtins.objects.str.StringNodes.StringMaterializeNode;
 import com.oracle.graal.python.nodes.util.CastToJavaIntExactNode;
 import com.oracle.truffle.api.CompilerAsserts;
 import com.oracle.truffle.api.CompilerDirectives;