FULL PRODUCT VERSION :
java version "1.8.0"
Java(TM) SE Runtime Environment (build 1.8.0-b132)
Java HotSpot(TM) 64-Bit Server VM (build 25.0-b70, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.1.7601]
SunOS dev 5.10 Generic_141445-09 i86pc i386 i86pc


A DESCRIPTION OF THE PROBLEM :
javac compiler extremly slow on some files - ~5-10min per file.

example: bad piece of automatically generated code (Netbeans GUI Builder)
--------------------------------------------------------------------------------------
        jPanelContractLayout.setHorizontalGroup(
            jPanelContractLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(jPanelContractLayout.createSequentialGroup()
                .addGap(481, 481, 481)
                .addGroup(jPanelContractLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jLabelStage)
                    .addComponent(jLabelOwner, javax.swing.GroupLayout.PREFERRED_SIZE, 80, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(jLabelService)
                    .addComponent(jLabelCost))
                .addGap(45, 45, 45)
                .addGroup(jPanelContractLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(jTextFieldCost)
                    .addComponent(jComboBoxService, 0, 189, Short.MAX_VALUE)
                    .addComponent(jComboBoxOwner, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(jComboBoxStage, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                .addContainerGap())
            .addGroup(jPanelContractLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addGroup(jPanelContractLayout.createSequentialGroup()
                    .addContainerGap()
                    .addGroup(jPanelContractLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                        .addGroup(jPanelContractLayout.createSequentialGroup()
                            .addComponent(jLabelAttachFilter)
                            .addGap(593, 593, 593))
                        .addGroup(jPanelContractLayout.createSequentialGroup()
                            .addGroup(jPanelContractLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                .addGroup(jPanelContractLayout.createSequentialGroup()
                                    .addGap(6, 6, 6)
                                    .addGroup(jPanelContractLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                        .addGroup(jPanelContractLayout.createSequentialGroup()
                                            .addGroup(jPanelContractLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                                                .addComponent(jComboBoxTags, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                                .addComponent(jScrollPaneTags, javax.swing.GroupLayout.PREFERRED_SIZE, 177, javax.swing.GroupLayout.PREFERRED_SIZE))
                                            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                            .addGroup(jPanelContractLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                                .addGroup(jPanelContractLayout.createSequentialGroup()
                                                    .addComponent(jButtonDelTag, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                                                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                                                    .addComponent(jScrollPaneGroup, javax.swing.GroupLayout.PREFERRED_SIZE, 0, Short.MAX_VALUE)
                                                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                                    .addComponent(jButtonDelGroup, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                                                .addGroup(jPanelContractLayout.createSequentialGroup()
                                                    .addComponent(jButtonAddTag)
                                                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                                                    .addGroup(jPanelContractLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                                        .addComponent(jLabelGroup)
                                                        .addComponent(jComboBoxGroup, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                                                    .addGap(153, 153, 153)
                                                    .addComponent(jButtonAddGroup))))
                                        .addGroup(jPanelContractLayout.createSequentialGroup()
                                            .addGroup(jPanelContractLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                                .addGroup(jPanelContractLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
                                                    .addComponent(jScrollPane2, javax.swing.GroupLayout.Alignment.LEADING)
                                                    .addComponent(jLabelFieldContract, javax.swing.GroupLayout.Alignment.LEADING)
                                                    .addComponent(jLabelDescription, javax.swing.GroupLayout.Alignment.LEADING)
                                                    .addComponent(jLabelTags, javax.swing.GroupLayout.Alignment.LEADING)
                                                    .addComponent(jTextFieldContract, javax.swing.GroupLayout.Alignment.LEADING)
                                                    .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 455, javax.swing.GroupLayout.PREFERRED_SIZE))
                                                .addComponent(jLabelUserData))
                                            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                                            .addGroup(jPanelContractLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                                .addGroup(jPanelContractLayout.createSequentialGroup()
                                                    .addGroup(jPanelContractLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING, false)
                                                        .addComponent(jXDatePickerBegin, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                                                        .addComponent(jXDatePickerEnd, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.PREFERRED_SIZE, 130, javax.swing.GroupLayout.PREFERRED_SIZE))
                                                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                                    .addGroup(jPanelContractLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                                        .addComponent(jSpinnerBegin)
                                                        .addComponent(jSpinnerEnd)))
                                                .addGroup(jPanelContractLayout.createSequentialGroup()
                                                    .addGroup(jPanelContractLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                                                        .addComponent(jLabelBegin)
                                                        .addComponent(jLabelEnd))
                                                    .addGap(0, 0, Short.MAX_VALUE))))))
                                .addComponent(jScrollPaneAttachFilter, javax.swing.GroupLayout.Alignment.TRAILING)
                                .addGroup(jPanelContractLayout.createSequentialGroup()
                                    .addComponent(jCheckBoxApproved)
                                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                    .addComponent(jCheckBoxSuspended)
                                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                    .addComponent(jCheckBoxAdvance)
                                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                                    .addComponent(jCheckBoxDone)
                                    .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                                    .addComponent(jComboBoxWeight, 0, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
                            .addContainerGap()))))
        );

--------------------------------------------------------------------------------------

REGRESSION. Last worked in version 7u51


REPRODUCIBILITY :
This bug can be reproduced always.