Analyze possible errors generated from fbinfer

[CarlosRodrigo]

Found 4 issues

app/src/main/java/br/org/cesar/discordtime/stickysessions/ui/list/ListSessionsActivity.java:71: error: NULL_DEREFERENCE
object returned by getSupportActionBar() at line 71.
69. setSupportActionBar(toolbar);
70.
71. > getSupportActionBar().setDisplayHomeAsUpEnabled(true);
72. getSupportActionBar().setDisplayShowHomeEnabled(true);
73.

app/src/main/java/br/org/cesar/discordtime/stickysessions/ui/lobby/SessionTypeLayoutManager.java:134: error: NULL_DEREFERENCE
object child last assigned on line 129 at line 134.
132. float d = Math.min(d1, Math.abs(midpoint - childMidpoint));
133. float scale = s0 + (s1 - s0) * (d - d0) / (d1 - d0);
134. > child.setScaleX(scale);
135. child.setScaleY(scale);
136. }

app/src/main/java/br/org/cesar/discordtime/stickysessions/ui/lobby/SessionTypeLayoutManager.java:151: error: NULL_DEREFERENCE
object child last assigned on line 146 at line 151.
149. float d = Math.min(d1, Math.abs(midpoint - childMidpoint));
150. float scale = s0 + (s1 - s0) * (d - d0) / (d1 - d0);
151. > child.setScaleX(scale);
152. child.setScaleY(scale);
153. }

app/src/main/java/br/org/cesar/discordtime/stickysessions/ui/lobby/LobbyActivity.java:163: error: NULL_DEREFERENCE
object returned by recyclerView.getLayoutManager() at line 163.
161. middle += (itemCount-position);
162. }
163. > recyclerView.getLayoutManager().scrollToPosition(middle);
164. }
165.