Inspection Gadgets NullPointerException... ?

Error message: Exception happened in local inspection tool: Unnecessary boxing
java.lang.NullPointerException

at com.siyeh.ig.verbose.UnnecessaryBoxingInspection$UnnecessaryBoxingVisitor.visitNewExpression(UnnecessaryBoxingInspection.java:100)

at com.intellij.psi.impl.source.a.a.ba.accept(ba.java:57)

at com.intellij.psi.impl.source.a.s.acceptChildren(s.java:60)

at com.intellij.psi.PsiRecursiveElementVisitor.visitElement(PsiRecursiveElementVisitor.java:1)

at com.intellij.psi.JavaElementVisitor.visitExpressionList(JavaElementVisitor.java:133)

at com.intellij.psi.impl.source.a.a.p.accept(p.java:19)

at com.intellij.psi.impl.source.a.s.acceptChildren(s.java:60)

at com.intellij.psi.PsiRecursiveElementVisitor.visitElement(PsiRecursiveElementVisitor.java:1)

at com.intellij.psi.JavaElementVisitor.visitExpression(JavaElementVisitor.java:103)

at com.intellij.psi.JavaElementVisitor.visitMethodCallExpression(JavaElementVisitor.java:72)

at com.intellij.psi.impl.source.a.a.z.accept(z.java)

at com.intellij.psi.impl.source.a.s.acceptChildren(s.java:60)

at com.intellij.psi.PsiRecursiveElementVisitor.visitElement(PsiRecursiveElementVisitor.java:1)

at com.intellij.psi.JavaElementVisitor.visitStatement(JavaElementVisitor.java:23)

at com.intellij.psi.JavaElementVisitor.visitExpressionStatement(JavaElementVisitor.java:40)

at com.intellij.psi.impl.source.a.a.r.accept(r.java:5)

at com.intellij.psi.impl.source.a.s.acceptChildren(s.java:60)

at com.intellij.psi.PsiRecursiveElementVisitor.visitElement(PsiRecursiveElementVisitor.java:1)

at com.intellij.psi.JavaElementVisitor.visitCodeBlock(JavaElementVisitor.java:96)

at com.intellij.psi.impl.source.a.a.br.accept(br.java:58)

at com.intellij.psi.impl.source.q.acceptChildren(q.java:97)

at com.intellij.psi.PsiRecursiveElementVisitor.visitElement(PsiRecursiveElementVisitor.java:1)

at com.intellij.psi.JavaElementVisitor.visitMethod(JavaElementVisitor.java:173)

at com.intellij.psi.impl.source.be.accept(be.java:49)

at com.siyeh.ig.ExpressionInspection.checkMethod(ExpressionInspection.java:50)

at com.intellij.codeInsight.i.a.i.b(i.java:53)

at com.intellij.codeInsight.i.a.bk$1.run(bk$1.java:1)

at com.intellij.openapi.application.a.b.runReadAction(b.java:278)

at com.intellij.codeInsight.i.a.bk.b(bk.java:24)

at com.intellij.codeInsight.i.a.bk.access$100(bk.java:9)

at com.intellij.codeInsight.i.a.bk$0.run(bk$0.java:3)

at com.intellij.progress.ProgressManager.runProcess(ProgressManager.java:28)

at com.intellij.codeInsight.i.a.bk.run(bk.java:5)